Value Collection 204066B Hex Cap Screw 1/2-13 X 2-1/4 in 316 Ss

Product Description

The VALUE COLLECTION 204066B is a partially threaded hex head cap screw designed for structural fastening applications that demand corrosion resistance. Manufactured from Grade 316 stainless steel with an uncoated finish, this fastener features a 1/2-13 UNC thread size and a 2-1/4 inch length under head. Grade 316 stainless offers superior resistance to chlorides and aggressive environments compared to standard 304 stainless, making it a common specification in marine, chemical processing, food service, and outdoor industrial installations. Licensed tradespeople and maintenance mechanics reach for this grade when joint integrity in corrosive or wet environments is a requirement.

This hex head cap screw is suited for mechanical and structural assemblies in residential, commercial, and industrial settings where a standard inch-series UNC fastener is called out. Partially threaded shanks provide a smooth grip section that resists shear loads more effectively than full-thread designs in certain joint configurations. Typical applications include equipment mounting, pipe flange connections, structural steel assemblies, and HVAC or plumbing equipment installation where the fastener will be exposed to moisture or corrosive media.

Key Features

• Grade 316 stainless steel construction for superior chloride and corrosion resistance
• 1/2-13 UNC thread standard for compatibility with standard inch-series nuts and tapped holes
• Partially threaded shank provides improved shear strength at the joint
• Uncoated finish eliminates coating delamination concerns in wet or chemical environments
• 2-1/4 inch length under head suits medium-depth fastening applications

Compatibility

Designed as a standard inch-series hex head cap screw for use with any 1/2-13 UNC tapped hole or matching hex nut in structural and mechanical assemblies.

Installation Notes

Installation is performed by mechanics, pipefitters, or maintenance technicians using a standard 3/4 inch hex wrench or socket. Verify mating threads are clean and free of debris before fastening. When torquing stainless steel fasteners, apply an anti-seize compound to reduce the risk of galling. Follow applicable codes such as ASME B18.2.1 for fastener dimensional standards and consult equipment manufacturer specifications for required clamp load values.