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Allen Cap SHCS
Socket caps have a small cylindrical head with tall vertical sides. Allen (hex socket) drive is a six-sided recess [Internal Hex Socket] for use with an Allen wrench (hex key). This design is the workhorse of the machine building industry.
The most important reasons for the increasing use of socket head cap screws in industry are safety, reliability and economy. All three reasons are directly traceable to the superior performance of socket screws vs. other fasteners, and that is due to their superior strength and advanced design. Available in full thread and half thread.
Standards: DIN 912, ISO 4762, Low Head – DIN 7984
Materials: Alloy Steel, Stainless Steel – AISI 304 and AISI 316, Titanium
Size Range: M1.6 to M24 up to 200mm length. 2-56UNC to 1″
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Allen CSK
Flat head screws are used for flush mounting of sections, usually where one part slides over another or one part is mounted on another. Countersunk head screws, like button heads and low heads, are limited by configuration in their tensile strength capability. Because of this, they should not be used in applications requiring full strength, where Socket Head Cap Screws should be used.
The head angle for metric countersunk socket screws is 90 degrees up to & including M20 and 60 degrees over M20. The head angle for Imperial is different – Unified is 82 degrees and British thread forms are 90 degrees.
Usage : Machine Guards, Hinges, Covers, multiple level assemblies etc.
Available in Hexagonal socket drive and the improved 6-Lobe (Hexalobular) drive.
Allen (Hex socket) Flat Head Screws are available as per ISO 10642 (similar to DIN 7991 which is now obsolete).
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Allen Button Head BHCS
The Socket Button Head Screw design as per ISO 7380-1 is primarily used where a lower profile head is required and for aesthetical reasons.
Button head socket cap screws combine the similar shape of a pan head with the driver of a socket head. The socket driver is ideal for low clearance applications that require a large area clamping face.
Compared to a standard socket head cap screw, button heads have a lower and wider profile which can be useful when the clamping material is too thin to counter-bore.
A button head socket cap screw’s large diameter face also helps to distribute force more evenly. They are also known as Button Head Cap Screws or BHCS.
These screws can take a lower tightening torque as compared to the DIN 912 screws.
Hence, these screws are not recommended for high demand applications.
Available in Hexagonal Socket drive and 6-Lobe (Hexalobular) drive for higher reliability.
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SOCKET SET SCREW – Allen Grub Screw
A set screw is a threaded fastener that normally does not have a head. Unlike most other threaded fasteners it is basically a compression device normally used to generate axial thrust.
Set Screws are also known as grub screw.
It is used to hold parts like sleeve, collar, coupling, gear etc. on a shaft to prevent relative motion.
The most obvious point of distinction between grub screws and other types of standard screws and bolts is that true grub screws tend not to feature a protruding head.
Instead, they’re usually threaded right to the top, and are the same diameter all the way along their length, meaning that the grub screw can be fully driven into its hole to sit flush with (or even countersunk into, depending on the application) the workpiece.
They’re almost always found being used in mechanical systems where two or more metal surfaces rub or press directly together, and where there isn’t room to fit a bolt or other type of protruding head between the two flush surfaces without limiting proper functionality or movement of the part(s).
Socket set screws offer three types of holding power: torsional (resistance to rotation); axial (resistance to lateral movement); and vibrational.
Size selection is an important factor in holding power.
Grub Screws are available with different point options.
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Pan Torx Machine Screws 6-Lobe
The notion of a drive with hexalobular sockets are a decisive step in developing drives better adapted to manual and automated assembly. This drive is becoming increasingly popular throughout the world.
Compared to drives like cross recesses and conventional hexagon sockets, this system is characterized by a lower risk of deterioration and a lower pressure force requirement. The typical «cam out» slipping of the tool has hence been eliminated and the force transmission improved.
The general dimensions are given in the product information of the respective catalogue group.
The Torx compatible drive is a reliable method of fixing screws. This drive can take more torque and does not slip.
The hexalobular socket screw drive, known as Torx or 6-Lobe or star drive, uses a star-shaped recess in the fastener with six rounded points.
It was designed to permit increased torque transfer from the driver to the bit compared to other drive systems. This system features a 15-degree drive angle which provides high torque transfer.
Radial forces are drastically reduced resulting in longer tool life.
It has vertical sidewalls which increases tool engagement CAMOUT is defined as the force upward on a screwdriver as the torsional force is increased to tighten the screw.
Torx Screws do not have camout problems as no camout forces are created to push the driver up and out of the fastener recess.
Due to this, the pressure required to keep the screwdriver in the socket reduces significantly and therefore reduces operator muscular stress and fatigue.
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CSK Torx Machine Screws 6-Lobe
The notion of a drive with hexalobular sockets are a decisive step in developing drives better adapted to manual and automated assembly. This drive is becoming increasingly popular throughout the world.
Features
- Standard – ISO 14581
- Our range of CSK Torx head screws is presently in Stainless Steel.
- Gives a flush finish
- Materials: AISI-304 AISI-316
- Size Range: M1.6 to M10 up to 150mm length
- Finish – Passivated. Black coating on special orders
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Button Head Torx Machine Screws 6-Lobe
The notion of a drive with hexalobular sockets are a decisive step in developing drives better adapted to manual and automated assembly. This drive is becoming increasingly popular throughout the world.
Dome Head 6-Lobe Screws as per ISO 7380-1
Also known as Torx Button Head Screw. This provides a lower profile fixing and is visually appealing.
BHCS Torx is also available in Black Finish
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SHCS Torx Machine Screws 6-Lobe
The notion of a drive with hexalobular sockets are a decisive step in developing drives better adapted to manual and automated assembly. This drive is becoming increasingly popular throughout the world.
6-Lobe Socket Head Cap Screws as per DIN 912
SHCS Torx is a very useful screw form that provides a very reliable fixing for machine construction.
SHCS Torx are also available in Black finish on request.
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Low Head Torx Machine Screws 6-Lobe
The notion of a drive with hexalobular sockets are a decisive step in developing drives better adapted to manual and automated assembly. This drive is becoming increasingly popular throughout the world.
Low head socket cap screws are designed to be used in special applications where head height clearance is a problem. Because of their reduced head height and smaller socket size, they normally cannot be pre-loaded as high as a standard socket head cap screw and should not be subjected to high dynamic loads.
Suitable for use in parts too thin for standard height socket cap screw and for applications with limited clearances.Available with Hexagonal Socket Head and 6-Lobe (ISO-14580) Socket Head for more reliability.
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Flanged Button Head Torx Machine Screws 6-Lobe
The notion of a drive with hexalobular sockets are a decisive step in developing drives better adapted to manual and automated assembly. This drive is becoming increasingly popular throughout the world.
Flanged Button Head 6-Lobe (TORX)
Made as per ISO 7380-2, this screw type is extremely useful to provide a low profile fixing in slotted holes and softer materials.
The Flanged head helps distribute the load over the surface.
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Hex Bolts & Screws
We offer a wide range of metal bolts and studs. What is the difference between screws and bolts?
Bolts can be described as long shafts with a distinct head on one side. These are generally partially threaded.
A fully threaded bolt is referred to as a screw.
Hex screws:
The work horse of any industry, the ubiquitous screw is needed in every machinery in some size or the other. We have a varied range to cater to all your different needs.
Metric Series:
IS 1364, ISO 4017, DIN 933
Materials: Titanium, Alloy Steel (high tensile), mild steel, Brass and stainless steel (AISI 304 and 316)
Mechanical:
For alloy steel property class 8.8 and 10.9 as per IS 1367, ISO 898 part I.
For mild steel 4.6 class
For Stainless Steel property class 50, 70 and 80[High Strength]
Size Range : M2.5 to M36 .Lengths from 10mm to 400mm
Inch Series
BSW: BS-1083
Threads: BS Whitworth, BS 84
Materials: Titanium, Alloy Steel (high tensile), mild steel and stainless steel AISI304 & AISI316
Mechanical: BS 2470 for Alloy Steel. Size range:(1/8”), 3/16”, ¼”, 5/16”. 3/8”, (7/16”), ½”, 5/8”, 3/4”, (7/8”), (1”). Lengths 3/8” to 8”Sizes in brackets are non-preferred standards and availability is limited.
Hex Bolts:
Metric Series:
DIN 931 ISO 4014Materials: Titanium, Alloy Steel (high tensile), mild steel, Brass and stainless steel (AISI 304 and 316)
Mechanical:
For alloy steel property class 8.8 and 10.9 as per IS 1367, ISO 898 part I.
For mild steel 4.6 class
For Stainless Steel property class 50, 70 and 80[High Strength]
Size Range : M2.5 to M36 .Lengths from 10mm to 400mm
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Carriage Bolts
We offer a wide range of metal bolts and studs. What is the difference between screws and bolts?
Bolts can be described as long shafts with a distinct head on one side. These are generally partially threaded. A fully threaded bolt is referred to as a screw.
Square Neck Carriage Bolts
This is known by different names such as Carriage Bolts, Coach bolts/ Round Head Square neck bolt, Mushroom Head Square neck bolt etc. Useful for fastening wood and metal together.
It is distinguished from other bolts by its shallow mushroom head followed by a square neck, while the shank cross section of the bolt is circular.
This gives the bolt its self locking feature. The square neck grips into the part being fixed preventing the head from turning when the nut is tightened.
Standard – DIN 603