Value Collection D30117 Hex Head Cap Screw 1/2-13 X 4-1/2 in

Product Description

The VALUE COLLECTION D30117 is a 1/2-13 x 4-1/2 inch hex head cap screw manufactured from Grade 5 steel with a zinc-plated finish. It features partial threading and conforms to ASME B18.2.1 dimensional standards. The unified coarse (UNC) thread pattern and hex drive make it compatible with standard wrenches and sockets. This fastener is used across industrial, mechanical, and structural assembly applications where a reliable, standardized hex cap screw is required. Installers in HVAC, plumbing, electrical, and general mechanical trades use fasteners of this type when securing equipment frames, mounting brackets, and structural components.

This screw is suited for general-purpose bolted assemblies in both commercial and residential settings. The 4-1/2 inch length under head accommodates applications requiring fastening through thicker stock or stacked materials. The zinc-plated finish provides a basic level of corrosion resistance appropriate for indoor and protected outdoor environments. Partial threading allows the unthreaded shank to bear shear loads, making it a common choice for bolted connections where alignment and load distribution matter.

Key Features

• 1/2-13 UNC thread size for compatibility with standard nuts and tapped holes
• 4-1/2 inch length under head for fastening through thicker assemblies
• Grade 5 steel construction provides moderate tensile strength for general mechanical use
• Zinc-plated finish offers basic corrosion resistance in dry or protected environments
• Partially threaded shank supports shear load bearing in bolted connections
• Conforms to ASME B18.2.1 for dimensional consistency and interchangeability

Compatibility

Designed as a standard ASME B18.2.1 hex head cap screw suitable for use with 1/2-13 UNC nuts, washers, and tapped holes in general mechanical and structural assemblies.

Installation Notes

Install using a standard hex wrench, socket, or box-end wrench sized for 1/2-inch fasteners. Ensure mating threads are clean and free of debris before assembly. Apply thread lubricant or anti-seize compound where required by the application or governing specification. Follow applicable torque guidelines from the equipment manufacturer or relevant industry standards for Grade 5 fasteners.