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

Product Description

The VALUE COLLECTION 202781 is a fully threaded hex head cap screw in 1/2-13 UNC thread size with a 1-3/4-inch length under head. Manufactured from Grade 316 stainless steel with a bright, uncoated finish, this fastener delivers strong corrosion resistance in wet, marine, and chemical-exposure environments. The fully threaded shank provides consistent thread engagement along the full grip length, making it well suited for through-bolting applications where maximum thread contact is required. Plumbers, pipefitters, HVAC technicians, and general mechanical contractors commonly specify 316 stainless hardware where standard zinc-plated or Grade 2 carbon steel fasteners would corrode prematurely.

This cap screw is appropriate for residential and commercial installations involving fluid-handling systems, stainless pipe supports, equipment mounting in damp or corrosive locations, and pool or saltwater-adjacent mechanical assemblies. Its UNC thread form is compatible with standard inch-series nuts, inserts, and tapped holes. The 1/2-13 thread designation indicates a 1/2-inch nominal diameter with 13 threads per inch, a common size in structural and mechanical fastener applications across multiple trades.

Key Features

• Grade 316 stainless steel construction for superior corrosion resistance versus Grade 304 in chloride-rich environments
• Fully threaded shank for maximum thread engagement in through-bolt and short-grip applications
• 1/2-13 UNC thread standard for compatibility with standard inch-series hardware
• Bright, uncoated finish — no plating to flake, chip, or introduce galvanic incompatibility with stainless mating hardware
• Hex head drive accepts standard 3/4-inch hex wrench or socket

Compatibility

Designed for use with standard 1/2-13 UNC inch-series nuts, washers, and tapped components in stainless or compatible alloy assemblies.

Installation Notes

Installation is performed by mechanical and trade contractors using standard 3/4-inch hex sockets or open-end wrenches. Always de-energize and isolate any equipment before fastener service. Apply an anti-seize compound rated for stainless steel when threading into stainless tapped holes to prevent galling, which is a common failure mode with 316 SS fasteners. Follow applicable mechanical and structural codes for torque requirements based on joint design and load specifications.