Value Collection R57001227 Hex Head Cap Screw 3/8-16

Product Description

The Value Collection R57001227 is a partially threaded hex head cap screw designed for secure mechanical fastening in a wide range of industrial and trade applications. Sized at 3/8-16 UNC thread with a length under head of 8.5 inches, this fastener is manufactured from 18-8 stainless steel and left uncoated, giving it solid corrosion resistance for use in wet, outdoor, or chemically exposed environments. The hex drive format is compatible with standard wrenches and sockets, making installation straightforward for electricians, plumbers, HVAC techs, and general mechanical tradespeople. Partial threading allows the unthreaded shank to bear shear loads while the threaded end secures the joint.

This cap screw is well suited for structural and mechanical assemblies where a longer grip length is required and corrosion resistance is a priority. Typical applications include equipment mounting, pipe support hardware, panel assembly, and general machinery fastening in residential and commercial settings. The 3/8-16 UNC thread is one of the most common coarse-thread sizes in inch-standard mechanical assemblies, making this screw widely compatible across trade work.

Key Features

• 18-8 stainless steel construction provides corrosion resistance without a coating
• Partially threaded shank handles shear loading in structural connections
• 3/8-16 UNC coarse thread for broad compatibility with standard inch-system hardware
• 8.5-inch length under head suits deep-reach or through-bolt fastening needs
• Hex head accepts standard wrenches and sockets for reliable torque application
• Uncoated finish avoids coating delamination concerns in high-heat or chemical environments

Compatibility

Designed as a standard inch-system hex head cap screw for use with 3/8-16 UNC threaded nuts, inserts, and tapped holes in mechanical and structural assemblies.

Installation Notes

Install using a properly sized open-end, box-end, or socket wrench rated for the fastener grade. Ensure mating threads are clean and free of debris before assembly. Stainless steel fasteners are susceptible to galling — apply an appropriate anti-seize compound to the threads when torquing to reduce friction and prevent thread damage. Follow applicable mechanical codes and equipment manufacturer specifications for torque requirements.