Value Collection D30112 Hex Head Cap Screw 1/2-13x3 Grade 5

Product Description

The VALUE COLLECTION D30112 is a 1/2-13 UNC hex head cap screw measuring 3 inches under the head, manufactured from Grade 5 steel with a zinc-plated finish. This partially threaded fastener conforms to ASME B18.2.1 dimensional standards, making it a reliable choice for structural and mechanical assemblies that require a fastener with a bearing surface under the hex head. The zinc plating provides a baseline level of corrosion resistance for general indoor and moderate-exposure applications. It is sized for use with a standard 3/4-inch wrench and pairs with 1/2-13 UNC threaded holes or nuts.

This fastener is suited for a wide range of trade and industrial applications, including equipment mounting, bracket fabrication, HVAC unit assembly, mechanical supports, and general structural connections. Partial threading provides a smooth shank section that resists shear loads, making it appropriate where the fastener passes through a clearance hole before engaging a threaded mate. Tradespeople across HVAC, plumbing, and electrical disciplines routinely use Grade 5 hex cap screws for equipment installation and structural support work.

Key Features

• 1/2-13 UNC thread form, partially threaded with smooth shank section for shear-load resistance
• 3-inch length measured under the head per ASME B18.2.1 specification
• Grade 5 steel construction for medium-strength fastening requirements
• Zinc-plated finish for corrosion resistance in general-duty environments
• Conforms to ASME B18.2.1 dimensional standard

Compatibility

Designed for use with standard 1/2-13 UNC threaded nuts, inserts, and tapped holes in general mechanical, structural, and equipment-mounting assemblies.

Installation Notes

Installation should be performed by a qualified tradesperson using the appropriate 3/4-inch wrench or socket. Always verify thread engagement and ensure the mating threaded hole or nut is clean and free of debris before assembly. Do not over-drive; tighten to the torque specification required by the application or equipment manufacturer. When used in safety-critical or load-bearing structural connections, follow applicable codes and engineering requirements.