Value Collection 202781C Hex Head Cap Screw 1/2-13 316 Ss

Product Description

The VALUE COLLECTION 202781C is a fully threaded hex head cap screw designed for fastening applications that demand corrosion resistance and dimensional consistency. Sized at 1/2-13 UNC with a 1-3/4-inch length under head, this screw is manufactured from Grade 316 stainless steel with a bright, uncoated finish. The fully threaded shank provides maximum thread engagement along the entire fastener length, making it well suited for through-bolting and clamping in assemblies where grip length flexibility is required. Plumbers, pipefitters, marine technicians, and industrial maintenance crews regularly specify 316 stainless fasteners for their superior resistance to chlorides and harsh process environments.

This fastener is used in residential and commercial mechanical, plumbing, and structural assemblies where exposure to moisture, chemicals, or saltwater makes carbon steel unsuitable. Typical applications include pipe flange connections, pump and equipment mounting, HVAC equipment bases, pool and spa mechanical rooms, and coastal or marine installations. The 1/2-13 UNC thread pattern is one of the most common inch-series thread sizes across trade applications, ensuring broad tool and nut compatibility on the job.

Key Features

• Grade 316 stainless steel construction provides excellent resistance to chlorides, salt spray, and corrosive process media
• Fully threaded shank allows maximum thread engagement and flexible clamping depth
• 1/2-13 UNC thread standard ensures compatibility with standard hex nuts, lock nuts, and tapped holes
• Bright uncoated finish maintains true dimensional tolerances with no coating buildup on threads
• 1-3/4-inch length under head suits medium-depth through-bolt and flange fastening applications

Compatibility

Designed as a standard inch-series hex head cap screw compatible with any 1/2-13 UNC tapped hole, hex nut, or coupling nut conforming to ASME B18.2.1 specifications.

Installation Notes

Installation is performed by qualified mechanics, pipefitters, or plumbers using a standard 3/4-inch hex wrench or socket. Always verify that mating nuts and tapped holes are rated for 316 stainless steel fasteners before assembly. De-energize or shut off all associated systems before disassembling flanged or bolted connections. Apply an anti-seize compound appropriate for stainless steel to prevent galling during installation and future removal.