Category: Screws

Coach screws are heavy duty fasteners specially designed for fastening metal pieces with timber and also to fasten heavy timbers. These types of rivets are also known as ‘lag bolts’ or ‘lag screws’.

These rivets feature a square or hexagonal-shaped head, specifically engineered to be easily used with any plier, wrench or spanner. These metal pieces are available in a huge range of sizes, ranging from the very small ones ideal for furniture and easily assembled by the consumer to extremely huge ones, which are used in large scale construction projects.

These specially designed fasteners comprise of an outwardly threaded cylindrical shaft, which is tapered at one end and its head protruding out at the other end.

When such screws are inserted into timber, the threads dig in into the wood and their heads prevent the rivets from slipping all the way through, due to the compression which is simultaneously created.

Did you know?

This kind of essential form of the fastener has been in existence for over 2,000 years, although metal rivets used for construction and woodworking have only been in use since 19th century and that was made possible due to the initiation of the mass-manufacture.

It was only during the Second World War that the size of these hardware supplies became standardized, so that they could be manufactured and shared between Allied forces at much ease.

Features

• Coach screws are fastened into wood with a spanner or socket
• These rivets are ideal for fastening into wood and are also used with wall plug in all masonry work
• Made up of galvanized carbon steel
• Features coarse thread and hexagon head
• Features sharp gimlet point for easy penetration
• Length ranges from 40 mm to 110 mm
• Thickness varies from 5 mm to 12 mm
• Most of these fasteners feature smooth shank

Their uses

The coach screws are widely used at critical joins in construction projects, due to their highly sturdy nature. These fasteners are often more advanced than nails for construction projects, as they can be easily removed and reused later.

These rivets are preferred for joints because of their heavy duty characteristic and they even render additional support through the use of metal flanges, whenever needed.

These fasteners are also used for fixing into timber, as their sharp points enable easy and quick installation, however pre-drilling is required in some cases.

When using such screws, it is always important to make sure that you’re using the correct wrench or spanner so as to prevent the head of the screw from getting damaged during installation. You should check-out the size of a wrench or spanner whichever you’re using, plus, you should also measure the flat ends.

And if you’re using these fasteners in fastening wooden pieces or in other cases where the rivet has to pass through the surface then you should use a washer with the screw so that the head won’t be sucked into the surface.

Hints & Tips

• Use with a wall plug in masonry work
• Extremely sturdy and reliable

Advantages

• Easy to install
• Extremely sturdy and reliable
• These rivets are ideal for fastening into wood and are also used with wall plug in all masonry work
• Available in bulk for better prices

Our featured product for this month is the Stainless Steel Phillips Flat Head Plastite screws, which offer definite reverberation shield and consistent high quality performance in spite of frequent cluster by piercing into normal tapped holes. This is certainly a penny-saving alternative for the 48-2 Thread Rolling Screws, which always meets technical specifications.

Such type of screw features longish holding power, when it comes to plastics. It features an itemized thread profile, a tribolar strand arrangement, offering maximum holding capacity and detention to fluctuating external forces. Besides, this particular fastener is easy to drive i.e. its three layered thread pattern enhances movement of the object between the strands, thereby reducing the effort required to pierce the screw into the plastic surface.

Some salient features of Stainless Steel Phillips Flat Head Plastite Screws:

• Feature diverse range of drives, head patterns and materials to meet specific requirements.

• Specially designed for plastics.

• Feature slightly dwindled point and twin lead threads, so as to execute hassle free screw installation.

• This screw can drive at double the rate of a pitch single lead.

• Its thread enhances grip, thereby lessening pull-out and stripping.

• The design improves the failure torque in plastic objects.

Types

These particular fasteners are available in huge varieties. Depending upon your requirement, you can go accordingly. The Internet can be of great help. You would get a comprehensive idea about this particular metal piece, their types, uses and availability. The most common types include the 18/8 Stainless Steel Phillips Flat Head Alternative 48-2 Thread Rolling Screws, 18/8 Stainless Steel Phillips Flat Undercut Head type,  410 Stainless Steel Phillips Pan Head type,  410 Stainless Steel Six-Lobe Pan Head type, Steel Black Zinc Bake & Wax Six-Lobe Pan Head and so on.

If you’re confused of which particular model to choose, you can always take the help of the customer support service. The World Wide Web is flooded with numerous websites dealing with such items. One such popular one is the Mutual Screw and Supply. You’ll get a detailed knowledge about the Plastite screws over here. So browse well and happy shopping!

If something that can distinguish the Canadian hardware industry from American then it is the Robertson screw, which is also known as the square socket screws and Scrulox.

This is one of the highly popular specialized screws, which features a square-shaped socket on its head and the protrusion on the tool is also square-shaped. Both parts of the screw feature a taper, thereby enabling the fastening work much faster and easier as well. Besides, such features also help the screw to stick to the tool tip without any manual support.

In this edition, we’ll be discussing about the history of Robertson screws, which are commonplace in Canada. Read on!

It was a pleasant summer day in 1906, when businessman, Peter Lymburner Robertson was exhibiting a spring-loaded screwdriver before his clients. Accidentally, the driver slipped and he eventually cut his hand. This particular incident provoked him to invent a more advanced screwdriver and some definite set of screws, which could fit this driver. He invented the socket head screw, which revolutionized the entire hardware industry.

Thus, the Robertson screws – the best-kept secret outside of Canada were conceived and became a huge hit soon after it hit the market.

These fasteners are arguably considered as the biggest invention in the fastener industry of the 20th century.

His specially designed square socket screws and the driver gave a tighter grip than any usual slot and rarely slipped. Robertson worked hard on his invention, which addressed all those issues and finally developed a machine to manufacture screws, with such unique designs.

In those days, the newly developed fasteners were soaring high and had almost dominated the entire hardware industry.

They became favorites among the hardware manufacturers and craftsmen, mostly because of their self-centring feature and that they could be easily driven even by one hand. Moreover, they reduced the risk of product damage and increased the productivity, due to which heavy-duty industries were also clinging towards these fastening objects.

One of the early hotshot clients for these screws was the Fisher Body Company, which used to design wooden body parts for Ford cars in Canada. They used 4-6 gross of Robertson screws in manufacturing Model T and they even convinced the Father of these fasteners to invent another specialized type i.e. socket screws for metal, so that they could easily match with the metal body parts of Model A, launched by Fords during that period.

But have you ever thought any brand, which became such a huge success didn’t go beyond the boundaries? Why those screws were not found outside of Canada, when they were so much good enough for manufacturers like Ford?

By going deeply into this factor, inventors/designers can learn a great lesson.

When Ford was testing the Robertson screws to employ with their assembly line, they discovered that by using those advanced fasteners, they could actually save up to 2 hours of their assembly time per vehicle.

And in order to protect this huge advantage, they made a license agreement with Robertson, stating that he won’t be having any ownership of his screws in future, so that he couldn’t sell his patent items to other companies.

However, Robertson had slowly expanded his business to Europe, but to his bad luck, World War 1 broke out and his Europe project faced a huge setback. He still emerged as a winner, as this time he was flying high with a blossoming project and felt that signing the agreement with Ford would be in best of his interests.

As legend goes, somebody else rises and bites the dust. Few years later, another big name rose in the market by the name of Phillips.

Robertson ran his Robertson Screw Company till his death in 1951. Today, this company has grown over 600 employees, with 120 of them belonging to his hometown Ontario in Milton.

At Mutual Screw and Supply, we field several calls from our esteemed clients, seeking help in choosing right bit of screw head types, appropriate for their requirements.

Here’s a brief yet comprehensive guide to screw head types and drives. Read on!

When your jobs requires usage of screws then always remember to go for the right type of screw driver. While most of the screws look alike, but their screw heads are rather different, thereby enabling you to go for distinct screw drives, which fit with the heads of your chosen screws. For instance, Phillips and Pozidriv are hard to be distinguished from a distance of 10 feet. But both of these fasteners do feature different heads and simultaneously they require different kinds of screw drives for their installation.

Here is a list of different types of screw heads.

Phillips

Invented by Henry Phillips, this kind of drive was explicitly designed to cam-out (it’s a method in which the screw driver glides out of the screw head, when it is driven and the torque which is required to turn the fastener crosses a certain amount) when the screw was bogged down, so as to prevent any damage occurring to the head, nonetheless affecting the driver. This particular design however created relative difficulty in developing torque, thereby restricting into the old drivers.

Other hardware companies therefore discarded the Phillips concept, as it created a relatively tangled and sunken socket shape in the head of the rivets.

These heads are usually designated in 7 types, depending upon the size of the screws and they include 000, 00, 0, 1, 2, 3, and 4.

Slotted

This is the most commonly used screw drive and is commonplace everywhere in the world, although its traditional usage is declining gradually, because of its slipping nature whenever heavy torque is applied over it.

Phillips Tamper-resistant

Most of the screw drives available in the market are tamper-resistant because of their vagueness. The one-way and breakaway drives fall under this category, which require specialized tools to destroy the rivet while unscrewing them. The high-end quality of such drives is used on home electronics. Such feature even helps the professional technician to repair the equipment easily, without having to return the piece to the manufacturer.

Quadrex

Quadrex, which is also known as the Phillips/square screw drive, is actually a combination of Robertson and Phillips screw drives. While an ordinary Robertson or Phillips tool can be used for its application, there is still a specialized tool for it, which enhances the surface area between the rivet and the tool, thereby enabling to handle more torque.

Earlier, this drive was sold under the name Deck Mate, which is now considered as other kind of drive.

Supadriv

The Supadriv, which is also spelt as ‘Supadrive’ is almost similar to Pozidriv by design and people often get confused between these two.

Anyways, this particular drive can be identified by two of its unique features. It secondary blades are larger and are of equal thickness. Moreover, it has got a superior bit, thereby making the installation procedure more efficient, producing less cam-out.

Pozidriv

The Pozidriv is the enhanced version of the Phillips screw drive. It is patented by American Screw Company and Phillips Screw Company. Many consider this name as an abbreviation of ‘positive drive’. The major advantage of such kind of drive is its likelihood to prevent cam-out, thereby enabling greater torque to be employed. As per ANSI, it is considered as type IA and is quite similar with Supadriv screw driver.

Frearson

The Frearson, which is also known as the Reed and Prince Screw head type, is somewhat similar to Phillips, but the only difference is that it features a pointed 75° V shape.

It is superior to Phillips drive in one way, as its bit can fit all screw sizes. It is mostly found in marine hardware and needs a specialized screw driver under the same name. Its tool recess features sharp cross, thereby enabling higher torque to be applied, unlike the rounded Phillips head type.

Hexalobular socket

The hexalobular socket screw driver, which is rather popular as Torx and star drive, is a star-shaped recess as the name suggests, featuring 6 rounded points.

It is specially designed to allow higher torque transfer from the driver to the bit, as compared to other drives. The Torx is mostly used in electronics and automotive industry, as it is highly resistant to cam-out and even reduces the need to go down with the drive tool.

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.

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.

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.

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.

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.

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.

Specifications

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.

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.