Value Collection R57001286 Hex Head Cap Screw 7/8-14

Product Description

The VALUE COLLECTION R57001286 is a hex head cap screw designed for general industrial and mechanical fastening applications. Manufactured from 18-8 stainless steel, this fastener delivers solid corrosion resistance in wet, outdoor, and chemically exposed environments. It features a 7/8-14 UNF (Unified Fine) thread and a length under head of 3 inches with partial threading, making it suitable for through-bolt and bolted-joint assemblies where a shank grip length is needed. Installation requires a standard hex wrench or socket set. Trade professionals in maintenance, industrial equipment service, and mechanical contracting will recognize this as a reliable stainless fastener for fine-thread applications.

This screw is used across a wide range of residential and commercial mechanical assemblies, including HVAC equipment mounting, pump and compressor hardware, piping supports, and general equipment fastening. The fine 7/8-14 UNF thread pitch suits applications requiring precise thread engagement or use in softer base materials where a finer thread provides better holding strength. Partial threading allows the unthreaded shank to bear shear loads, which is a common requirement in structural and flanged joint assemblies.

Key Features

• 18-8 stainless steel construction for corrosion resistance in wet and exposed environments
• 7/8-14 UNF fine thread for precise engagement and strong clamping force
• 3-inch length under head with partial threading for shear-load bearing shank
• Uncoated finish — no coating degradation risk in chemically active environments
• Inch system of measurement with standard hex drive for common tool compatibility

Compatibility

Designed as a general-purpose 7/8-14 UNF hex head cap screw suitable for standard inch-thread bolted assemblies across industrial, mechanical, and trade service applications.

Installation Notes

Installation is performed using a standard hex socket or open-end wrench sized for a 7/8-14 UNF fastener. Always verify thread engagement depth and ensure mating threads are clean and free of debris before installation. Torque to the fastener specification appropriate for the joint material and application — do not exceed rated values for stainless steel, which is more susceptible to galling than carbon steel. Applying an anti-seize compound to stainless threads is standard practice to prevent galling during installation and removal.