Value Collection R57001123 Hex Head Cap Screw 5/16-18

Product Description

The VALUE COLLECTION R57001123 is a fully threaded hex head cap screw designed for general-purpose fastening applications across mechanical, structural, and trade installations. Built from 18-8 stainless steel with a bright uncoated finish, it delivers reliable corrosion resistance without the need for plating or additional surface treatment. The screw follows a 5/16-18 UNC thread standard with a 2.25-inch length measured under the head. Fully threaded along its entire shaft, it provides maximum thread engagement for use in through-hole assemblies or when a nut and washer configuration is required. This fastener is a standard inch-measurement component suited for HVAC equipment mounting, plumbing fixture work, and general mechanical assembly tasks performed by licensed trade technicians.

This cap screw is appropriate for residential and light commercial applications where stainless steel fasteners are specified for corrosion resistance in damp or chemically exposed environments. Common installation scenarios include securing equipment panels, brackets, pipe supports, and mechanical components in HVAC, plumbing, and electrical enclosure work. The 5/16-18 UNC thread pattern is widely compatible with standard nuts, inserts, and tapped holes found in trade equipment and structural components. Minimum order quantity is 10 units.

Key Features

• 18-8 stainless steel construction provides corrosion resistance in wet and chemically active environments
• Fully threaded shaft maximizes thread engagement for through-hole and nut-and-washer assemblies
• 5/16-18 UNC thread standard ensures compatibility with standard inch-series hardware
• Bright uncoated finish — no plating that can chip, flake, or introduce galvanic incompatibility
• 2.25-inch length under head suits medium-depth fastening applications in equipment and structural work

Compatibility

Designed as a standard inch-series hex head cap screw compatible with any 5/16-18 UNC tapped hole, insert nut, or matching hex nut used in residential and light commercial mechanical, plumbing, and HVAC applications.

Installation Notes

Installation of this fastener is appropriate for any trade technician performing mechanical assembly work. Power down and de-energize any equipment before fastening or removing hardware on electrical or HVAC enclosures. Use a correctly sized hex wrench or socket to avoid fastener head damage, and do not overtighten in softer base materials where thread stripping is a risk. Follow applicable codes such as the NEC or IPC when fastening equipment in regulated installations.