Value Collection R57001105 Hex Head Cap Screw 1/4-20

Product Description

The VALUE COLLECTION R57001105 is a fully threaded hex head cap screw engineered for general mechanical and structural fastening applications. Manufactured from 18-8 stainless steel, it delivers reliable corrosion resistance in wet, chemical-exposure, or outdoor environments where carbon steel fasteners are not suitable. The screw measures 1/4-20 thread size with a 2-1/4-inch length under the head, following the Unified National Coarse (UNC) thread standard. The bright, uncoated finish maintains dimensional accuracy and is compatible with standard 18-8 stainless nuts and washers. Installation requires a standard hex driver or wrench matching the 1/4-inch fastener series.

This cap screw is suited for light industrial, mechanical assembly, plumbing support, HVAC equipment mounting, and electrical enclosure work where stainless fasteners are specified. The UNC thread form is the most common inch-series thread standard in North American trade applications, making this screw broadly interchangeable in maintenance and repair contexts. It is sold individually but carries a minimum order quantity of 100 units, making it appropriate for bulk fastener stock in shops, service vehicles, and maintenance departments.

Key Features

• 18-8 stainless steel construction provides corrosion resistance in humid and chemically active environments
• Fully threaded along the entire shank length for maximum thread engagement in thin-material applications
• 1/4-20 UNC thread form ensures compatibility with standard North American inch-series nuts and tapped holes
• Bright uncoated finish maintains precise tolerances and allows direct contact with stainless hardware
• 2-1/4-inch length under head suits medium-depth fastening and stacking applications

Compatibility

Designed as a standard inch-series UNC hex head cap screw compatible with 1/4-20 tapped holes and matching stainless steel or general-purpose hex nuts and washers.

Installation Notes

Installation is performed with a standard hex wrench or socket driver sized for the 1/4-inch fastener series. Always verify thread engagement and ensure mating hardware is rated for 18-8 stainless steel to prevent galvanic corrosion between dissimilar metals. Do not overtighten stainless fasteners, as the material is susceptible to galling without lubrication; anti-seize compound is commonly applied in trade practice. Follow applicable mechanical codes for torque and fastener specifications on structural or pressure-bearing assemblies.