Value Collection MP30033 Hex Head Cap Screw 5/16-18 X 2 in Grade 5

Product Description

The VALUE COLLECTION MP30033 is a Grade 5 steel hex head cap screw with a 5/16-18 UNC thread and a 2-inch length under head. Partially threaded and zinc-plated, this fastener is built for general industrial and mechanical assembly work where a standard coarse-thread inch-series bolt is required. The zinc coating provides basic corrosion resistance for indoor and light-duty outdoor applications. Manufactured to ASME B18.2.1 dimensional standards, it delivers consistent head geometry and thread tolerances expected on the job site or in a shop setting. Sold in a package of 25 pieces.

This screw is suited for use in residential and commercial mechanical installations where 5/16-18 UNC fasteners are called for — including equipment mounting, bracket attachment, access panel hardware, and general structural assembly. The partial threading allows for clamping force against unthreaded material, making it appropriate where a fully threaded fastener would not seat correctly. HVAC, plumbing, and electrical tradespeople commonly use Grade 5 hex cap screws in equipment rough-in and mechanical room work.

Key Features

• 5/16-18 UNC coarse thread, inch-series measurement system
• 2-inch length under head for medium-depth fastening applications
• Grade 5 steel construction for mid-range tensile strength requirements
• Zinc-plated finish for basic corrosion resistance
• Partially threaded shank for proper clamping in unthreaded material
• Meets ASME B18.2.1 dimensional standards for consistent fit and interchangeability

Compatibility

Designed as a standard inch-series UNC hex head cap screw for use in any application requiring a 5/16-18 x 2-inch Grade 5 partially threaded fastener conforming to ASME B18.2.1.

Installation Notes

Install using a standard hex wrench, socket, or open-end wrench sized for a 5/16-inch hex head fastener. Power down and de-energize any equipment before fastening or removing hardware on electrical or mechanical assemblies. Do not exceed the rated tensile load for Grade 5 hardware — consult applicable mechanical codes and equipment manufacturer documentation for torque and load requirements. Zinc-plated fasteners are suitable for dry or mildly humid environments; use a corrosion-resistant grade for wet or chemically exposed locations.