Value Collection 837145PR Hex Socket Cap Screw 1/4-20 Unc

Product Description

The VALUE COLLECTION 837145PR is a fully threaded hex socket cap screw designed for secure mechanical fastening in demanding industrial and trade applications. With a 1/4-20 UNC thread size and a 1/2-inch length under head, this fastener is driven by a 3/16-inch hex key and is constructed from alloy steel with a zinc-plated coating that provides corrosion resistance in exposed or moderate-duty environments. It meets ASTM B695 standards for zinc coating, confirming consistent finish quality. This type of fastener is commonly installed by maintenance technicians, millwrights, and general tradespeople across mechanical assembly, equipment mounting, and fixture fabrication work.

This cap screw is suited for use in residential maintenance, light industrial assembly, and commercial equipment applications where a compact, fully threaded socket head fastener is required. The 1/4-20 UNC thread is one of the most common unified coarse thread sizes in North American trade work, making it broadly applicable across a wide range of machinery, brackets, panels, and structural components. The zinc-plated alloy steel construction provides a balance of strength and basic environmental protection suitable for indoor and light-outdoor use.

Key Features

• 1/4-20 UNC thread for broad compatibility with standard tapped holes in North American trade applications
• Fully threaded along the 1/2-inch length under head for maximum thread engagement in shallow or thin-material applications
• 3/16-inch hex drive accepts standard hex keys and hex bit sockets
• Alloy steel construction provides greater tensile strength compared to standard carbon steel fasteners
• Zinc-plated finish meets ASTM B695 for corrosion protection in general-duty environments
• Minimum order quantity of 100 pieces supports bulk stocking for service fleets and shop inventories

Compatibility

Designed as an OEM-style replacement and general-use fastener for any application requiring a 1/4-20 UNC fully threaded hex socket cap screw with a 1/2-inch length under head.

Installation Notes

Installation is performed using a 3/16-inch hex key or hex bit driver. Ensure the mating tapped hole is clean and free of debris before threading to avoid cross-threading or stripping. Apply thread-locking compound if vibration resistance is required in the application. Follow applicable mechanical codes and equipment manufacturer torque guidelines when specified.