Holo-krome 73122 Hex Socket Cap Screw 7/16-20 Unf

Product Description

The HOLO-KROME 73122 is a fully threaded hex socket cap screw designed for high-strength mechanical fastening in demanding industrial and trade applications. Built from alloy steel with a black oxide finish, this screw measures 1 inch in length under the head and carries a 7/16-20 UNF thread specification. The 3/8-inch hex drive socket interface allows precise torque application using a standard hex key or Allen-type driver. It meets ASME B18.3 and ASTM A574 standards, confirming its suitability for structural and load-bearing assemblies where fastener integrity is critical. Machinists, millwrights, and maintenance technicians commonly specify this type of fastener for equipment assembly and repair.

This screw suits applications requiring a fine-thread fastener in ferrous and non-ferrous assemblies, including machine frames, hydraulic components, fixtures, and equipment housings. The 7/16-20 UNF thread form provides stronger thread engagement and better resistance to loosening under vibration compared to coarse-thread equivalents. The black oxide coating offers mild corrosion resistance and reduces galling during installation. It is appropriate for both residential equipment repair and light commercial mechanical work wherever a compact, high-strength internal-drive cap screw is required.

Key Features

• 7/16-20 UNF fully threaded alloy steel construction for high tensile strength
• 1 inch length under head suits shallow-to-medium depth fastening applications
• 3/8-inch hex socket drive for precise torque with standard hex keys
• Black oxide finish provides mild corrosion resistance and reduces surface galling
• Meets ASME B18.3 and ASTM A574 dimensional and mechanical standards

Compatibility

Designed as an OEM-style replacement or service fastener for assemblies specifying a 7/16-20 UNF hex socket cap screw per ASME B18.3 and ASTM A574.

Installation Notes

Installation requires a correctly sized 3/8-inch hex key or socket driver. Always ensure mating threads are clean and free of debris before driving. Follow equipment manufacturer torque specifications and applicable standards such as ASME B18.3 for proper seating. Power down or de-energize any equipment before accessing fastened assemblies.