Sirius 12.9 Grade Socket Head Cap Screws UNC 3/8 UNC 4" Pack of 50

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Sirius 12.9 Grade Socket Head Cap Screws UNC 3/8 UNC 4" Pack of 50

These socket head cap screws offer exceptional strength and durability for the most demanding fastening tasks. Manufactured from premium alloy steel and heat-treated to a 12.9 grade specification, they provide the highest tensile strength available in standard metric and inch fasteners, ensuring a secure and long-lasting hold in heavy-duty assemblies, machinery, and structural applications. Whether you are working on automotive repairs, industrial equipment, or precision engineering projects, this pack of 50 gives you a reliable supply of high-performance screws that resist stripping and shearing under extreme loads.

- Grade 12.9 alloy steel construction for maximum tensile strength and hardness

- UNC (Unified Coarse) thread pattern with 3/8 inch diameter for standard inch fastening

- 4 inch length suitable for thick material stacks and blind hole applications

- Socket head design allows for high torque tightening with a hex key

- Black oxide finish provides mild corrosion resistance and reduces galling during installation

- Pack of 50 screws offers convenient bulk supply for multiple projects or repeat use

- Manufactured to tight dimensional tolerances ensuring consistent fit and performance

- Suitable for use with hex keys or hex bit drivers for easy installation

Ideal for engineers, mechanics, and fabricators who demand nothing less than top-grade fasteners for critical connections.

GTIN: 5014196338934