Screws Bolts

We are fasteners specialist that produce customized and specialized fasteners.

Hex Socket Head Screws

Socket cap screws are high-strength tension fasteners designed for clamping assemblies and are commonly used in tool and die fixture applications. Socket screws, also known as Allen head screws, are available in several head styles and materials. Used in many applications, socket screws are reliable and durable.


1. Wide range of interior applications in multiple materials including wood, dry wall, masonry, sheet metal and plastic.

2. High Surface Hardness & Soft on Core Hardness.

3. 45°C Bending Curve (3-points curve testing).

It was strengthened to bear the critical requirements of construction with strong hardness and torque. It also can be made as customer's design specifications.

Socket head cap screws are used for applications with limited space. They have cylindrical head and internal wrenching features (hexagon socket) that allow them to be used in locations where externally wrenched fasteners are not desirable. They are used for critical vehicle applications, machine tools, tools and dies, earth moving and mining machinery, and a wide range of engineering applications. The most important reasons for the increasing use of socket head cap screws in industry are safety, reliability and economy.  

Advantages of socket head cap screws:

As compared to ordinary fasteners, less socket screws of the same size can achieve the same clamping force in a joint.

As fewer screws are required for a given job, fewer holes are required to be drilled and tapped.

There is weight reduction as fewer screws are used.

There will be weight reduction on account of smaller size of the component parts since the cylindrical heads of socket screws need less space than hex heads and require no additional wrench space.

Product and dimensions standards

Product and dimensions standards used for socket head cap screws in various countries are as below;

ANSI: ASTM A574, B 18.3, B 18.3.1M 

IS: 2269 

ISO: 4762 

DIN: 912 

BS: 2470, BS-EN ISO 4762

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