Holo Krome 72138 Socket Head Cap Screw 5/16-18 x 2-1/4 Inch (Pack of 100)

The Holo Krome 72138 is a high-quality socket head cap screw designed for industrial and mechanical applications requiring secure, reliable fastening. This precision-engineered fastener features a 5/16-18 thread size with a 2-1/4 inch length, providing excellent holding power in a wide range of assemblies.

Key Specifications:

• Thread Size: 5/16-18 UNC (Unified National Coarse)
• Length: 2-1/4 inches (measured under head)
• Head Style: Socket head cap screw (hex socket drive)
• Material: Alloy steel with black oxide finish
• Grade: Typically Grade 8 or equivalent high-strength alloy
• Pack Quantity: 100 pieces

Features and Benefits:

• Low-profile head design allows for use in applications with limited clearance
• Hex socket drive provides superior torque transfer and reduces cam-out
• Black oxide finish offers moderate corrosion resistance and reduces glare
• Precision threading ensures consistent, reliable installation
• High tensile strength for demanding structural and machinery applications

Holo Krome fasteners are manufactured to exacting standards, making them ideal for automotive, industrial equipment, machinery assembly, and precision mechanical applications where quality and reliability are essential.