Value Collection D30032 Hex Head Cap Screw 5/16-18

Product Description

The VALUE COLLECTION D30032 is a partially threaded hex head cap screw designed for general fastening applications across mechanical, structural, and trade service work. Sized at 5/16-18 x 1-3/4 inches with a Unified National Coarse (UNC) thread form, this fastener is manufactured from Grade 5 steel and finished with a zinc plating for corrosion resistance. The partial thread configuration allows for clamping force to develop across unthreaded shanks in bolted joint applications. HVAC, plumbing, and mechanical contractors regularly use Grade 5 hex cap screws for equipment mounting, bracket assembly, and panel attachment tasks.

This fastener suits residential and light commercial trade applications where a 5/16-18 UNC thread pattern is specified. Typical uses include securing equipment mounting feet, attaching junction boxes, anchoring pipe hangers, and general mechanical assembly on service panels and structural supports. The zinc-plated finish provides a baseline level of corrosion resistance appropriate for indoor and semi-exposed environments. This screw meets ASME B18.2.1 dimensional standards, making it a reliable drop-in fit wherever that specification is called out.

Key Features

• 5/16-18 UNC thread — one of the most common coarse-thread sizes in trade fastener work
• 1-3/4 inch length under head with partial threading for proper clamping in bolted joints
• Grade 5 steel construction for medium-strength fastening requirements
• Zinc-plated finish provides corrosion resistance in indoor and semi-exposed installations
• Meets ASME B18.2.1 dimensional standards for consistent fit across replacement applications

Compatibility

Designed as a standard 5/16-18 UNC hex head cap screw per ASME B18.2.1, suitable for any application specifying a Grade 5 steel partially threaded hex cap screw in that thread size and length.

Installation Notes

Install using a standard hex wrench or socket set sized for 5/16-inch hex cap screws. De-energize and isolate any equipment before replacing or adding fasteners to electrical enclosures or mechanical assemblies. Do not exceed the torque capacity appropriate for Grade 5 fasteners in the mating material — consult the equipment manufacturer's documentation when torque specifications are required. Ensure the mating threads are clean and free of debris before installation.