Value Collection D30041 Hex Head Cap Screw 5/16-18 X 4-1/2 in

Product Description

The VALUE COLLECTION D30041 is a partially threaded hex head cap screw designed for general mechanical fastening applications across the trades. It is manufactured from Grade 5 steel with a zinc-plated finish for corrosion resistance in standard indoor and light-duty outdoor environments. The fastener measures 5/16-18 thread size with a 4-1/2 inch length under head, conforming to ASME B18.2.1 standards. Licensed tradespeople and maintenance technicians use this screw in equipment assembly, bracket mounting, and structural fastening tasks requiring a reliable UNC thread pattern.

This cap screw is suited for residential and light commercial mechanical applications where Grade 5 strength is required. Typical uses include equipment mounting, panel fastening, and machine assembly in HVAC, plumbing, and electrical service environments. The partial thread design provides a grip-length zone for secure clamping between mating surfaces, making it appropriate for through-bolted connections in standard service conditions.

Key Features

• 5/16-18 UNC thread size for broad compatibility with standard tapped holes and nuts
• 4-1/2 inch length under head for through-bolted and deep fastening applications
• Grade 5 steel construction provides medium-strength tensile performance
• Zinc-plated finish offers corrosion resistance in typical service environments
• Partially threaded shank provides a clamping grip zone for secure joint assembly
• Conforms to ASME B18.2.1 dimensional standards

Compatibility

Designed as a standard UNC hex head cap screw compatible with 5/16-18 tapped holes, nuts, and threaded inserts in steel, aluminum, and similar substrates following ASME B18.2.1 specifications.

Installation Notes

Installation is performed by mechanical, HVAC, or general maintenance technicians using a standard hex socket or open-end wrench sized for a 5/16-18 fastener. Ensure mating threads are clean and free of debris before installation. Do not overtighten; follow the torque specifications provided by the equipment manufacturer for the specific application. Minimum order quantity for this item is 25 pieces.