Holo-krome 73080 Hex Socket Cap Screw 5/16-24 Unf

Product Description

The HOLO-KROME 73080 is a hex socket cap screw designed for applications requiring a compact, high-strength fastener with a recessed drive. Sized at 5/16-24 UNF with a 3/4-inch length under head, this screw is fully threaded and uses a 1/4-inch hex (Allen) drive. Manufactured from alloy steel and finished with a black oxide coating, it meets ASME B18.3 and ASTM A574 standards. The black oxide finish provides mild corrosion resistance and reduces light reflection in service environments. This fastener is installed by machinists, millwrights, mechanical contractors, and maintenance technicians.

This screw is suited for mechanical assemblies, equipment mounting, and structural fastening tasks where a flush or low-profile head is required. The fine 24-thread-per-inch UNF pitch provides better torque retention and vibration resistance compared to coarse-thread equivalents, making it a common choice in precision machinery, HVAC equipment frames, and industrial assemblies. It is sold in multiples of 100 units per order.

Key Features

• 5/16-24 UNF fine thread for improved vibration resistance and torque retention
• Fully threaded 3/4-inch length under head maximizes thread engagement
• 1/4-inch hex socket drive compatible with standard Allen wrenches and hex bits
• Alloy steel construction meets ASTM A574 high-strength socket screw requirements
• Black oxide finish provides mild corrosion resistance and low-reflectance appearance
• Conforms to ASME B18.3 dimensional standards

Compatibility

Designed as a standard ASME B18.3 hex socket cap screw suitable for mechanical assemblies requiring a 5/16-24 UNF fully threaded fastener with a 1/4-inch hex drive.

Installation Notes

Installation is performed with a 1/4-inch hex key or hex bit driver. Ensure mating threads are clean and free of debris before installation. Do not exceed the rated torque range for the fastener grade as defined by ASTM A574 specifications. Minimum order quantity is 100 units per order increment.