Value Collection 837397PR Hex Socket Cap Screw 1/2-20 Unf

Product Description

The VALUE COLLECTION 837397PR is a hex socket cap screw designed for secure fastening in mechanical and structural assemblies. It features a 1/2-20 UNF thread, a 1-1/2 inch length under the head, and a 3/8 inch hex drive. Fully threaded along the shank, this screw is manufactured from alloy steel and finished with a zinc plating that provides corrosion resistance in general service environments. It meets ASTM B695 standards for zinc coatings on fasteners. Trades and maintenance professionals use this type of fastener where a socket wrench or Allen key is required and a low-profile cap head is preferred over a hex bolt head.

This screw is suited for use in equipment assembly, machinery maintenance, and general industrial or mechanical applications where 1/2-20 UNF fine-thread engagement is specified. Fine-thread UNF fasteners offer greater thread engagement per inch compared to coarse-thread UNC equivalents, making them a common choice where vibration resistance or precise clamping force is needed. This screw sells in a minimum order quantity of 10 units.

Key Features

• 1/2-20 UNF fine-thread specification for high thread engagement and vibration resistance
• Fully threaded shank provides maximum thread contact over the 1-1/2 inch length under head
• 3/8 inch hex socket drive compatible with standard hex keys and socket drivers
• Alloy steel construction for high tensile strength in demanding fastening applications
• Zinc plating meets ASTM B695 coating standards for corrosion protection

Compatibility

Designed as a standard 1/2-20 UNF hex socket cap screw for use in any application requiring this thread specification, cap head profile, and 3/8 inch hex drive size.

Installation Notes

Installation is performed with a 3/8 inch hex key or socket driver. Ensure the mating threaded hole or nut is clean and free of debris before driving the screw. Power down or de-energize any equipment before performing fastener service on mechanical assemblies. Do not exceed the torque rating specified by the equipment manufacturer for this thread size and fastener grade.