Sirius 12.9 Grade Socket Head Cap Screws UNC 5/8 UNC 1 1/2 Pack of 25

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Sirius 12.9 Grade Socket Head Cap Screws UNC 5/8 UNC 1 1/2 Pack of 25

These socket head cap screws deliver exceptional tensile strength and reliability for demanding fastening applications. Manufactured from 12.9 grade alloy steel, they offer the highest strength class available for socket head cap screws, making them ideal for heavy machinery, automotive assemblies, and structural fixings where safety and long-term performance are critical. The UNC 5/8 inch thread provides a coarse, robust profile that resists stripping and handles high clamping loads, while the 1 1/2 inch length suits thick material stacks and secure fastening in demanding environments.

- 12.9 grade alloy steel for maximum tensile strength and durability

- UNC 5/8 inch coarse thread for reliable engagement and resistance to loosening

- 1 1/2 inch length for deep grip and heavy-duty applications

- Hexagon socket drive allows high torque without cam-out

- Black oxide finish provides basic corrosion resistance and reduces galling

- Supplied in a practical pack of 25 for workshop or small-scale projects

- Conforms to ISO 898-1 and BS EN 4762 standards for dimensional accuracy

Ideal for engineers, fabricators, and maintenance professionals who require consistent quality and high clamping force, these screws are a dependable choice for critical fastening tasks.

GTIN: 5056293251013