Day: July 7, 2015

Eye Lag Screws: Ideal for Fixing Both Metal as well as Wooden Objects

An eye lag screw is basically used to fasten the back surface of your pole with the end of a guy wire. It is also used to fasten your desired anchor point to the end of a bungee cord. At Mutual Screw and Supply, we never encourage you to use such kind of fastener to anchor your main zip line cable. Instead, we suggest you to use an eyebolt or cable sling.

Eye Lag Screw

Before buying an eye lag screw, you should always measure the length from the base of the eye till the point where the threads end. For instance you can go for a 4″ lag screw, which features a shank length of 4 inches with its eye portion extending past this, especially if you are looking for attaching any suspended ceiling hanger wire to the wood.

These kinds of screws resemble eyebolts, except for the feature that they screw into objects, instead of passing through them. We would never suggest you to use them to anchor your zip line, but they feature a bunch of other applications, such as making hammocks and stuff.

We offer an array of such types of fasteners for fastening both metals as well as wooden objects, including installing various industrial tools. While the self-tapping & sharp-point rivets are inserted without pre-drilling holes in the receiving surface, these fasteners are drilled with an eye lag jig pole, along-with a 6.4 mm hex driver and a variable speed drill having a minimum speed of 200 rpm.

The sharp point ends of such screws get easily inserted by using the Eye lag installation tool (ELAT). These usually work from the floor by using the I-Lag telescopic pole and are ideal for hanging plants from patio ceilings.

Some basic features of stainless steel eye lag screws:

Easy installation

Their sharp eye points get easily and quickly inserted into wood

Ideal for both interior as well as exterior applications

Safe working Load = 120 pounds

Ideal for fixing ceiling hanger wire to wooden joists

Feature Self tapping sharp point

Salient Features of Clutch Head Screws

If you happen to see some kind of odd bow-tie shaped screw slots on your door or window pane, you’ve probably discovered the clutch head screws.  Such fasteners were extensively used in the auto industry from the 1940s through the 1960s. In 1970s, few of these screws also paved their way into travel trailer manufacturing industries as well.

10X High security clutch screws

Clutch head screws are also known as One Way Screws and ‘Security Screws‘. These specially designed fasteners are used for lasting installations. These are easy to use and can be installed using a normal screwdriver. The head of such kind of fastener features a normal drive and slanted rear face, which prevents the screwdriver from applying torque when trying to loosen these fasteners.

Once implanted, these rivets require typical drilling application for removal from the holes. However, you can even fetch for a special kind of driver bit to undo them.

Steel Clutch Head screws

In order to unscrew these rivers, you’re required to use a screwdriver bit of the same shape and size. The clutch head one way screws can be unscrewed in the clockwise direction by using a standard slotted screwdriver. This drive system was probably the worlds first security recess.

Unique Design

This unique feature enables such screws to be tamper-proof, thereby enhancing the security of your house and lessening the risk of robbery and making it impossible for the intruders to tamper the screws. Due to their unique design, there are even ideal for higher torque applications.

Clutch head with a hole for screw Driver

Thus, these fasteners are also referred as Jail Head. They are usually self-tappers and are used in applications jail cell hinges and even in domestic window locks and exposed door lock screws.


Standard Clutch Head

Standard Clutch Heads of screws

The clutch head screws are usually of two types: type A and type G. The type A is also known as a standard clutch and usually resembles a bow tie. And the type G resembles a butterfly.

Type G Clutch Head of a screw

These are zinc plated hardened steel and cannot be removed once they are installed. Besides, the countersunk clutch head screws can only be opened by a flat head screw driver


The type A screws were widely used earlier and were commonly seen in 1940s’GM automobiles, including trucks and buses. And the type G rivets are commonly used in the construction of mobile homes and recreational vehicles. You can even find them in your windows and doors, if they’re installed with some odd bow-tie shaped screw slots.

Special features of Clutch Head screws

These are ideal for

  • Public access wooden windows & doors
  • Seating & fencing
  • Prison fittings & fixtures
  • School & college fixings & fixtures
  • Also used in timber applications

Added Benefits

A police survey shows that around 30% of the intruders gain access to the houses through windows. Therefore, it’s utmost necessary to keep your windows secured.

Key-Rex Shape Security fastner

Beat the thieves with the clutch head screws!  

Their ‘one way’ design lets you fasten these screws with an ordinary Slotted screwdriver, but unscrewing them is virtually impossible. Hence, these can be of great help, as their unique features make it impossible for them to be unscrewed using a driver, instead a driller is required to undo them.

There’s another kind of screw known as A2 clutch head round wood screws.

Self tapper A2 Clutch Head round Wood screws

These fasteners are also known as Clutchless Screws and are made up of A2 stainless Steel.

These types of hardened steel self tapping screws can be used with various materials including wood, plastic and as a self tapping screw.


5 Inch construction screw

  • These fasteners are mostly used by the police and councils to secure number plates
  • Construction Security Screws
  • Sign Security

A Retrospect to the Standard Screw Sizes

The use of fasteners has grown extensively worldwide, increasing the need of coming up with standard screw sizes. Standardization prevents the use of improper screws, and ensures screws are compatible with the materials being used and are appropriate for the project at hand. Screw dimensions include the driver type — such as flat, Phillips or hex — length, shank diameter and threads per inch.

The demand for fasteners has extensively grown globally, especially in the world of online marketing. This growing demand has simultaneously increased the requirement for standard sizing of these hardware supplies.

By classification, the hassle of each time landing up with screws with different patterns and lengths can be greatly avoided. This even ensures that these rivets become comme il faut with the materials, being used in the construction or any build-up project. The various dimensions of these fasteners demand ofr use of various type of screwdrives, such as hex, Phillips, flat determining the shank diameter, length and threads per inch.

Screw’s numbering system

when standardization was done, the screws were put into 2 distinct numbering systems; the metric and U.S numbering systems. The metric measuring system lists out the diameter of these rivets in millimeters first and then secondly in thread pitch. The examples for this category include 6 mm x 1.0, 4 mm x 0.7, 5 mm x 0.8 etc. The U.S stadnard measurement system inlcudes screw with diameter sizes as 0, 1, 2 ,3, 4, 5, 6, 7, 8, 9, 10, 12, 14 and 16 and even in fractional sizes ranging from  1/4″ to 2″ in 1/16″. This is followed by threads and dash per inch falling between 6 and 80.

Diameter of screws

The first number metioned in the size charts for diameter must match the inner diamter of the washers ad nuts applied to them. The diameter of the rivet is measured at the shaft, just below the screw head. The diamter size ranging from 0 to 16 is declared by the American Society of Mechanical Engineers, thereby enabling the hardware sizing system to be extensively adopted worldwide. This kind of measurement made in standard U.S fractions was recently added and countries outside of America  are also seen following this standardization.

Length of screws

While the pan head screw’s length is measured from the flat end of its round head to its tip, the length of the flat head screws measure from the top of the head to the tip of the rivet.

The length is the third item typically listed in the size chart and is identified by an ‘x’ symbol. For instance, a #8-20 x 3/4″ screw features 20 threads per inch and a shaft measuring 3/4″ in length and a 5/8-24 x 1″ screw has a diameter of 5/8″, 24 threads per inch and has a 1″ shaft.

There are some fasteners, which are measured as per the threads per inch sizing, execpt for their length and diameter such as 5/16 x 1/2″ and #10 x 1″

Threading of screws

This kind of measurement is at number 2 in the chart of standard screw sizes. The hyphen refers to the number of threads of screw shaft per inch. For e.g. a 1/4-28 sized screw has diameter of 1/4″ along-with 28 threads per inch and a #6-32 screw has 32 threads per inch on its shaft.

Features and Types of Black Carriage Bolts

Black carriage bolts are mainly used in fixing two wooden pieces and these are also known as plow bolts. These types of fasteners feature a domed head followed by a square base right beneath the top. These square necks prevent the fastener from spinning when the nut is applied. These are also available with ribbed neck.

Black Carriage Bolts

These fasteners, along-with timber bolts feature no drive and machine threads, which are used for a nut. Instead they feature a rivet, flaunting a square shoulder beneath their domed top, which withstands the spinning when the nut is fastened.

These metal pieces are used in deck construction and also in other outdoor furniture manufacturing projects. We, at Mutual Screw and Supply are indulged in providing a wide range of black carriage bolts, which are again available in various models and specifications. These items are manufactured using high standard quality material and are highly durable and sturdy by nature. Our range of fasteners is ideal for usage in automobile, engineering and allied industries.

The square neck of such bolt is inserted into the wood as the nut is fastened, thereby ensuring a very secured fitting. These metal rivets are available in various diameters and the most commonly used appliances in wood manufacturing industries. These are made up of different materials and are available in various grades of steel, thereby matching various industrial applications.

The square neck of such bolt is inserted into the wood as the nut is fastened, thereby ensuring a very secured fitting. These metal rivets are available in various diameters and the most commonly used appliances in wood manufacturing industries. These are made up of different materials and are available in various grades of steel, thereby matching various industrial applications.

Some of the most commonly used carriage bolts are described below:

Steel black oxide and oil carriage fasteners – These are medium sized carbon oxidized bolts used in heavy duty automotive processing.

Zinc plated types – These moderate rivets are specially used to prevent rusting.

Stainless steel black 18-8 bolts – These are ideal for marine applications and exterior usage and are therefore manufactured from a specific alloy of steel, which features a high corrosion resistance.

The black carriage bolts are thus available in various categories, flaunting distinct specifications.

What are Sheetrock Screws?

A Quick Review

Sheetrock screws, which are also known as drywall screws are extremely sturdy and long enough to be applied on drywall or sheet rock surface. These are made up of black phosphate and comprises of finished steel.

The unique cornet-shaped angle present beneath the head enhances the bearing area against the easily ruptured drywall surface.
These fasteners render better holding capacity as compared to nails and hence reduce the chance of popping out, thereby preventing any damage to the panel. These are used for fastening drywall to wooden or metal studs.

Ad Nauseam

Sheetrock® is the business name for USG Corporation’s drywall product, which is also known by several other names in different nations, such as Gibraltar board, plasterboard, gypsum board, wallboard, GIB wall, ceiling linings and rock lath.

It is manufactured in specific designs, so as to meet the construction standards put forward in building codes. The most important feature of this fastener is that it saves considerable amount of time, which is required to upright, the ceilings and interior walls in any form.

Although there are various procedures involved in the sheetrock screws installation, there are certain techniques applied, particularly in new constructions.

What’s in a name?
The name “drywall” suggests that walls made of certain materials are constructed without using water. A long-prevailing issue with plaster was that it took considerable time for drying, as it was installed wet, and the workers had to wait for this layer to dry-up before proceeding for the next one. The word “gypsum” is derived from the Latin term “gypsos,” which means “plaster.”


These screws are designed in various sizes, including 48 inches, 96 inches and even 144 inches. These rivets are used determining the various requirements by different building codes and studs, made up of hollow steel sheets or wooden beams. These studs are used to support the interior walls and are positioned at about 16 inches gap. While the general ceiling height is 8 feet, the sheetrock screws’ dimensions alleviate them both vertically and horizontally, with every step featuring several proponents.

This 16-inch gap signifies the center of each stud. After all the fasteners have been inserted, the walls are then constructed using joint compound. This compound is spread over both the joints and screw holes between each joint.

Once the composite dries up, the walls are then sanded smooth and ready for whitewash.
The countersunk heads of the drywall screws are the most essential features. The entire fastener lies smooth with the surface of the sheet, thereby creating a great finish. The countersunk head helps in restricting the screw from damaging the paper surface, which is usually a common problem with all the nails.

Types & Uses

The sheetrock screws are usually of two types: Type ‘W’ and Type ‘S’. While the first one includes the wooden screws, featuring coarse and wide threads, the later one includes metal rivets, which are used along-with the steel framing members.

Another great feature of these fasteners is that they feature an edged and notched head, which can easily insert into the steel framing and their fine threads help them even penetrate into the steel surface.

Benefits of Using Taptite Screws

The blatant mishmash of smokestack fasteners is overwhelming. If you are looking for a certain type of fastener, say taptite screw in the market then you must have a fair knowledge about the item, before fetching it. The Internet can be the best medium since the World Wide Web is today flooded with numerous web stores, dealing with hardware supplies.

Taptite Screw

In various manufacturing companies, workers usually learn about various kinds of fasteners and their features from their experience or under the guidance of supervisors, peers or going through training manuals. But when somebody is looking for certain requisites for fixing up any domestic task then he/she should take the help of the net. There are copious web stores available today, but you should always go for a reputed and trustworthy store. In order to have a detailed catalogue on types and sizes, the popular fastener company, Mutual Screw and Supply can be your ultimate destination.

The self-tapping thread-rolling screws are one of the most commonly used fasteners, which feature female threads fitting in the accurately sized tapping holes. The main advantage in using them is that they can produce threads at relatively lower torques than conventional self-tapping screws.

These particular fasteners are used when the caper is advanced in high production assemblage using threaded rivets. These screws represent the processing of the trilobular criterion for specific type of popular applications.

The taptite screws feature certain type of lobulation at the end point for easy penetration and their optimum threads reducing the lobulation act in the screw body, thereby warding off any kind of wear and tear. In other hand, a stabilized threaded dog point screw ensures safety, aligned entry, durability and easy pick-up, which usually requires minimum end load.

Benefits of thread rolling screws:
Good axial alignment
High vibrational resistance
Low end load
High strip-to-drive ratio
High existing torque
Good torque tension relationship

These are available in various models, flaunting distinct features. You can browse the website to know more.

Micro Screws, Quite an Essential Requisite for Your iPhone

There is no denying that iPhone series are ruling the world market of mobile handsets. Their technology, their highly advanced features and tremendous usability have enabled this very brand to become one of the most sought-after assets and those, who already own these widgets do not mind flaunting their prized possessions.

The brand has become so popular in the recent times that numerous online stores have been set-up, rendering services and required accessories for iPhone series. You can easily avail anything related to this particular mobile phone, ranging from headsets and phone covers to screen guards. You find them all at one single store. And you can blame Apple’s popularity for such kind of easy approach.

Let‘s say you have got an iPhone 5 and you’re looking for some sort of replacement parts for your handset, say micro screws. These web stores may or may not be dealing with such kind of unique fastener, so it’s always better to look for web stores, completely dealing with fasteners and hardware supplies, such as Mutual Screw and Supply.

While the stores dealing with iPhone devices may charge you a small fortune for such petty requirements, so it’s always better to go for such stores, who are dealing with such fasteners day in and day it. By this, you can surely land up with a smart dealing. Even by browsing further, you can analyze and compare prices offered by various stores and you would conclude which store is cheaper, whether a fastener shop or an exclusive store set-up for iPhones.

These phones are no cheap so they are meant to last for a longer time period. The materials used in their creation and so as their designs work altogether to enable you with a durable and long-lasting handset. However, their sturdiness doesn’t mean that you won’t have to face any kind of repair job. Besides, this is also a part of the game, while dealing with mass-produced cell phones. Fortunately, there are ways, by which you can cost-effectively deal with your replacement issues and online is always the best medium.

There are several reasons, for which you may need micro screws for your iPhone. Below listed are a few reasons people look for these fasteners for their exquisite handsets.

The screws of these widgets may get loosened after a certain time period and eventually some may even go missing. The regular usage leads to wear and tear of a cell phone, thereby causing rivets to become lose. You cannot fasten these tiny metal objects easily, unless you find a flathead screwdriver to fix the job. In the meantime, the screws may fall out of place.

You may be willing to replace the handset’s logic board and in the process may misplace a few micro screws and thanks to your careless attitude. Thus, you’ll have no option left but to look for some new pieces.

There are people, who are careless in dealing with such delicate devices and would be seen quite often dropping them or throwing them recklessly on their desks. Such actions may even lead to loosening of screws and eventually misplacing them.

Thus, for several reasons, you would be looking for micro screws for your iPhone or even for any other reason. The reason however, rarely matters and all you need supplies at the much needed time. We, at Mutual Screw and Supply, can help you with deal with such annoying situations. Visit our store to find out more about the pricing and on-going deals.

Brass Wood Screws: Preventing Cracks While Fastening Wooden Panels

Earlier when the concept of brass wood screws was not conceived, the cabinet makers used to manage with nails, glue and wooden peg, so as to fasten the wooden panels. Although the glue can fix the panels, it is not sturdy enough for a longish time period. A wooden peg is however better than the glue. You need to carve a hole for it and nails, on the other hand used to be the perfect option during those times. They keep the furniture pieces intact, but again they even feature some flaws, like there are chances of bearing a crack on the wooden surface.

Brass Wood Screws

The hardware industry came up with an advanced option to deal with such issues. The wooden fasteners have now become a favoured option as these do not mar the beauty of the furniture by making a crack on it. Such kind of fastener is quite popular these days because of its advanced features and ability to safely fasten the panel in place. The market is today flooded with several types of wooden screws and you may be confused in choosing the particular model, best suiting your requirement.

Basic factors to understand the brass wood screws:

1. Such screws feature two types of heads, which include the flathead or slotted type and the Phillips or cross head type. The Mutual Screw and Supply is a leading web store, dealing with such kind of hardware supplies. The latest additions in their product page include the square head Phillips and the simple square head type.

2. Such kind of wooden fasteners also feature various head shapes, such as the round head type, which features protruding top with broad bottoms. Another kind is the flat head type, which is ideal for installing hinges. The hinges can be sunk deep into the wooden surface with its help. The last but not the least is the oval head type, which is both rounded and flat type.

3. Such kinds of screws are usually made up of hard steel, which comprises of brass and stainless steel materials.

You can even go for coasted brass wood screws to prevent corrosion.

Various Uses of Heavy Duty Drywall Anchors

If you’re thinking of hanging a window box or installing a cast iron pedestal sink in your house then you’ll certainly require few hardware supplies, among which the Heavy Duty drywall anchors are a must. These days, with everything becoming highly expensive, calling up a professional cabinet maker or plumber to fix up your petty things can land you up in unnecessary expenditure. Instead, you can volunteer for this job to have it done in a cost-effective way.So fixing a window box is indeed a difficult task, but if you’ve got all the necessary amenities then you can do it conveniently without any professional help. If the window box is required to be mounted directly on the exterior wall then you need to be extra careful. Such kind of heavy duty task should only be done, if you’re well aware about the installation procedure. There are several factors, which need to be considered.

Drywall Anchor

Firstly, you should know the weight of the box, which is going to be mounted upon. Secondly, you should understand the material of the box and of the surface. Thirdly, you should look for the type of supports available and which one best suits for this kind of installation. After considering all these factors, you need to make sure that you are using right kind of fastener for this job, as it is the most essential requirement. It is going to bear the entire weight of the box, so you should go for heavy duty drywall anchors, which are best suited for this hardware job.

And if you are thinking of installing a cast iron pedestal sink then you will also require this particular fastener. However, this installation is comparatively easy than hanging a window box. But again you need to know the steps involved in this process.

While securing the sink to the wall, you need to make sure that there is something durable to bolt into. If you’re using the heavy duty drywall anchors then you need to make sure that the tiles are set on a mortar base which is strong enough to withstand the installation.

Such kind of fastener can be used in several hardware related tasks. All you need to know is the correct usage of such hardware supply.

Making of Drop Forged Eye Bolts

The drop forged eye bolts are 316 stainless steel type fasteners and are usually available in 1/4″ x 2″ size. Although there are other sizes available in the market, eye bolts shown here are supplied standard rivets enabled flaunting a hot galvanized finish.

Drop forged eye Bolt

Before being galvanized, these are threaded national course and are equipped with hex nuts, which are tapped oversize to render easy galvanizing thickness. Not to mention, these rivets are usually without a shoulder and are also available along-with special shank and customized thread sizes.

Loads applied on drop forged eye bolts are usually based on a safety factor ranging from 5 to 1. When tested, these particular eye bolts get pulled with a direct tension at a uniform rate of speed. Any aberrations such as shock loads, angular lifts, modifications of the basic forging etc. result in dramatically reduced maximum loads.

Technical Specifications of Eye Bolts

Technical Specifications

  • Item: Drop Forged Eye Bolts
  • Type: Lifting With Shoulder
  • Material: 316 Stainless Steel
  • Finish: Galvanized
  • Thread Size: 1/4-20
  • Thread Length: 1 1/2″
  • Shank Diameter: 1/4″
  • Shank Length: 2″
  • Eye Inside Diameter: 1/2″
  • Eye Outside Diameter: 1″
  • Overall Length 3″
  • Working Load Limit (Lb.): 2400

Formed Wire Eye Bolts with Hex Nuts


The drop forging is a type of metalwork process, which helps in gradually shaping a heated piece of metal, known as ingot. This technique involves creation of ingot, by giving repeated blows from a hammer or a die. This is done by raising and then dropping the hammer on the metal piece, thereby either flattening it or molding it to a desired shape.

Special shank, Thread Lengths and other sizes of Eye bolts

Determining the intricacy of the required design, the procedure sometimes involves numerous dies and other steps as well.

The drop forged eye bolts are usually produced with a close approximation of the finished metal piece. In some cases, some additional method, such as machining is involved, so as to obtain the required tolerance. It is a type of manufacturing process, which is used to create objects out of metal. Click here to know more.

Shoulder Pattern Type Drop Forged Eye Bolts

The drop forged eye bolts are used extensively in the automotive industry in producing various engine parts, gears and axles.

The dies used in this method are typically made up of high alloy steel known as tool steel. Such dies are designed specifically to become resistant to daily wear and tear. These are also capable of withstanding repetitive rapid heating and cooling cycles.

Forged Eye Bolts Recommended Load Limits

The dies used in this technique are made into two halves. While the upper half, known as hammer, is fastened to the raised block, that is dropped into the ingot; the lower half, known as anvil, is a rather stationary die used against the ingot, that is forged.

Another commonly used drop forging method is the open-die type. In this method, the dies do not completely encircles the work-piece. This kind of die is usually flat unlike contoured dies and cutting dies and are far more superior than the normal dies.

Open Die type Drop Forging method

This kind of open design accounts room for the expansion of the ingot, when it is hammered to the desired thickness.

The drop forged eye bolts are also prepared under various other techniques such as cogging and edging, impression-die forging and closed-die forging known as flash-less forging.

These rivets, which are available in steel and C-1023 type, are usually supplied standard fasteners featuring a hot galvanized finish.

Steel drop forged Eye Bolt

Before being exposed to galvanizing, they are threaded and enabled with hex nuts tapped unshapely, which assist in galvanizing thickness. Special shank and thread sizes for these rivets are also available in the market. As per your requirements, you can choose accordingly.

For these fasteners, loads are applied on a safety factor from 5 to 1. When tested, all such eye bolts are easily pulled at a uniform rate of speed in a direct tension. However, be warned that any kind of deviations, including shock loads, angular lifts, modifications of the basic forging etc. will result in dramatically reduced maximum loads.

Townley Australia Eye Bolts

Features of ‘Imperial’ drop forged eye bolts

  • Hot Galvanized
  • Features nut
  • Features higher tensile steel
  • Electro galvanised finish available on request
  • Bolt Diameter is around 1/4-20
  • Shank Length is about 2″
  • Thread Length is about 1-1/2
  • Inside Diameter of Eye is 1/2
  • Outside of Eye is 1″
  • Maximum Load involves 500 lbs’
  • Self-color finish
  • Tested and certified

Features Of Imperial Drop forged eye Bolts