Value Collection 2-SC-25C-31 Set Screw 1/4-20 Grade 316

Product Description

The VALUE COLLECTION 2-SC-25C-31 is a 1/4-20 x 5/16 inch cup point set screw machined from Grade 316 stainless steel with a bright, uncoated finish. Driven by a hex key, the cup point bites into the mating surface to resist rotation and axial movement without a protruding head. Grade 316 stainless provides superior corrosion resistance compared to 304, making this fastener well suited for wet, chemical, or marine environments. Plumbers, pipefitters, electricians, and mechanical contractors rely on this type of headless fastener when a flush or recessed profile is required in a finished assembly.

Cup point set screws in 1/4-20 thread are a standard size across a wide range of trade applications including shaft-to-hub connections, collar locking, valve packing glands, and equipment adjustment mechanisms. The 5/16 inch length is common in light-duty clamping duties where minimal engagement depth is needed. Suitable for both residential and commercial mechanical assemblies requiring corrosion-resistant hardware.

Key Features

• Grade 316 stainless steel construction for superior corrosion resistance in wet and chemical environments
• Cup point geometry creates a positive bite into the mating surface for reliable locking
• Hex drive accepts standard hex keys and Allen wrenches
• Bright, uncoated finish maintains dimensional accuracy for precise thread engagement
• Headless design allows fully flush or recessed installation
• 1/4-20 thread is a widely used standard size compatible with common taps and threaded inserts

Compatibility

Designed as a standard 1/4-20 x 5/16 inch cup point set screw for general mechanical assemblies requiring a Grade 316 stainless, hex-drive headless fastener.

Installation Notes

Installation requires a correctly sized hex key or Allen wrench; using an undersized key risks rounding the drive socket. Thread the receiving hole to 1/4-20 specifications before installation and verify thread condition to avoid galling, which is more common with stainless fasteners. Apply an anti-seize compound rated for stainless steel to reduce galling risk during installation and future removal. Always de-energize or de-pressurize the assembly before servicing any fasteners on live mechanical or fluid systems.