Value Collection R52001205 Hex Head Cap Screw 1/2-13x9

Product Description

The VALUE COLLECTION R52001205 is a partially threaded hex head cap screw designed for general industrial and mechanical fastening applications. It measures 1/2-13 x 9 inches, with the 9-inch dimension measured under the head, and features a Unified National Coarse (UNC) thread form. Manufactured from Grade 5 steel with a zinc-plated finish for corrosion resistance, this fastener meets ASME B18.2.1 and SAE J429 standards. It is suited for structural assemblies, equipment mounting, and other high-load fastening work where a standardized hex drive and partial thread engagement are required.

This cap screw is used across a wide range of mechanical and industrial installations, including HVAC equipment mounting, pump and motor assembly, structural steel connections, and general fabrication work. The partially threaded shank provides a smooth bearing surface in the grip zone, making it appropriate for clamping joints where the threads should not engage the full length of the hole or mating material. It is appropriate for both shop and field installation by mechanics, millwrights, and trade technicians working in inch-measurement systems.

Key Features

• Grade 5 steel construction meets SAE J429 mechanical property requirements for medium-strength fastening
• Zinc-plated finish provides baseline corrosion protection in dry and mildly humid environments
• Partially threaded shank maintains a full-diameter grip zone along the unthreaded length
• UNC thread form (1/2-13) is widely compatible with standard nuts and tapped holes in inch-measurement hardware
• Conforms to ASME B18.2.1 dimensional standards for hex head cap screws
• 9-inch under-head length suits deep-reach or through-bolting applications

Compatibility

Designed for use with standard 1/2-13 UNC hex nuts, flat washers, and tapped holes conforming to inch-series thread standards. Suitable for general-purpose fastening in HVAC, mechanical, and industrial equipment where Grade 5 steel strength and UNC threading are specified.

Installation Notes

Installation is performed by mechanics, HVAC technicians, or millwrights using a standard hex wrench, socket, or impact driver sized for a 1/2-inch hex bolt. De-energize and lock out any equipment before fastening or removing hardware in or near energized systems. Apply a flat washer under the head when fastening into soft or dissimilar materials to prevent surface damage and ensure proper clamp load distribution. Torque to the value specified by the equipment manufacturer or applicable structural standard for Grade 5 fasteners of this diameter.