Value Collection D30035 Hex Head Cap Screw 5/16-18 X 2.5 in

Product Description

The VALUE COLLECTION D30035 is a 5/16-18 hex head cap screw designed for general-purpose fastening in structural and mechanical assemblies. Manufactured from Grade 5 steel with a zinc-plated finish for basic corrosion resistance, this screw measures 2.5 inches in length under the head and features partial threading along the shank. It conforms to ASME B18.2.1 standards, making it a reliable choice for applications where dimensional consistency and load capacity matter. Installers working in HVAC equipment mounting, electrical enclosure assembly, plumbing bracket work, and light structural fabrication will find this fastener sized for common trade applications.

This hex head cap screw is suited for use in residential and light commercial trade work wherever a 5/16-18 UNC thread pattern is called out. The partially threaded shank allows for clamping force across unthreaded material before the threads engage the receiving nut or tapped hole. Typical installation scenarios include equipment base rail fastening, bracket mounting, and panel assembly work across HVAC, plumbing, and electrical trades.

Key Features

• Grade 5 steel construction for reliable tensile and proof load performance in general mechanical applications
• Zinc-plated finish provides basic corrosion resistance for indoor and sheltered installations
• Partially threaded shank allows firm clamping between mating surfaces before thread engagement
• 5/16-18 UNC thread form for compatibility with standard inch-series nuts and tapped holes
• Conforms to ASME B18.2.1 dimensional standards for consistent fit across tool and hardware sets

Compatibility

Designed for use with standard 5/16-18 UNC inch-series nuts, washers, and tapped hole applications in general mechanical and trade assembly work.

Installation Notes

Install with a standard hex wrench or socket driver sized for a 5/16-18 cap screw head. De-energize any equipment and relieve system pressure before fastening or removing hardware on live assemblies. Do not exceed the rated load for Grade 5 fasteners — substituting higher-grade hardware where specified by equipment manufacturers is acceptable but downgrading is not. Follow applicable codes such as ASME or equipment manufacturer torque guidelines when specified in service documentation.