Value Collection BD-63516 1/4-20 Unc Hex Socket Cap Screw

Product Description

The VALUE COLLECTION BD-63516 is a 1/4-20 UNC hex socket cap screw machined from 316 stainless steel. It features a low-profile socket head driven by a hex key (Allen wrench) and a 0.5 inch length under the head. The 1/4-20 UNC thread designation indicates a 0.25 inch nominal diameter with 20 threads per inch, conforming to Unified National Coarse thread standards. This fastener is suited for mechanical assemblies, structural connections, and equipment fabrication where corrosion resistance is required. Machinists, millwrights, pipefitters, and maintenance technicians commonly install this type of hardware in production and field environments.

This cap screw is appropriate for use in corrosive or marine environments where 316 stainless steel provides superior resistance to chlorides and oxidizing agents compared to 304 grades. Typical applications include pump housings, valve assemblies, food-processing equipment, marine hardware, and chemical processing fixtures. It is sold individually, with a minimum order quantity of 50 pieces, making it suitable for both small repair jobs and production builds requiring consistent fastener stock.

Key Features

• 316 stainless steel construction provides strong resistance to corrosion, chlorides, and oxidizing environments
• 1/4-20 UNC thread profile for compatibility with standard inch-series tapped holes and nuts
• 0.5 inch length under head fits shallow-clearance and close-tolerance assembly applications
• Hex socket drive allows installation in recessed or tight-access locations using a standard hex key
• Minimum order quantity of 50 pieces supports both maintenance stock and production usage

Compatibility

Designed for use in any application requiring a 1/4-20 UNC threaded fastener with a hex socket cap head. Compatible with standard 1/4-20 tapped holes and matching hex nuts conforming to Unified National Coarse thread specifications.

Installation Notes

Installation is performed with the appropriately sized hex key or Allen wrench driver; confirm the correct key size before applying torque to avoid rounding the socket. Ensure the mating threaded hole or nut is clean and free of debris before assembly. When installing stainless steel fasteners, apply an anti-seize compound to the threads to reduce the risk of galling. Always follow applicable mechanical codes and equipment manufacturer guidance for fastener torque requirements specific to the assembly.