Bowmalloy 36102 Hex Head Cap Screw 1/2-13 X 3/4 in Grade 9

Product Description

The BOWMALLOY 36102 is a fully threaded hex head cap screw engineered for high-strength fastening applications in industrial and mechanical assemblies. Built from Grade 9 alloy steel with a zinc-plated clear chromate finish, this fastener delivers superior tensile strength over standard Grade 5 and Grade 8 hardware and adds corrosion resistance suited for both indoor and moderately harsh environments. The 1/2-13 thread size and 3/4-inch length under head make it a compact but robust choice for tight-clearance bolted joints. Electricians, millwrights, HVAC installers, and general contractors rely on Grade 9 hardware when standard fasteners are not rated for the application load.

This screw is suited for structural bolted connections, equipment mounting, machinery assembly, and mechanical utility installations where high clamping force is required. The 1/2-13 UNC coarse thread pattern provides strong thread engagement and is widely used in North American trade work across HVAC equipment mounting, electrical panel assembly, pump and motor installation, and general fabrication. The zinc clear chromate coating adds a layer of protection against white rust formation during storage and service. Sold in a package quantity of 50.

Key Features

• Grade 9 alloy steel construction for high-strength fastening beyond standard Grade 5 or Grade 8 ratings
• Fully threaded shank provides maximum thread engagement across the full 3/4-inch length
• 1/2-13 UNC coarse thread pattern for broad compatibility with standard American fastener tooling
• Zinc-plated clear chromate finish offers corrosion resistance and clean appearance
• Inch measurement system - fits standard 3/4-inch hex drive sockets and wrenches
• Package quantity of 50 supports job-site and shop inventory efficiency

Compatibility

Designed for use in any application requiring a 1/2-13 UNC fully threaded hex head cap screw with a 3/4-inch length under head. Compatible with standard 1/2-13 nuts and tapped holes conforming to ASME B1.1 Unified National Coarse thread standards.

Installation Notes

Installation should be performed by a qualified tradesperson familiar with structural fastening requirements for the specific application. Always verify the tapped hole or nut thread class is compatible with 1/2-13 UNC before installation. Use a calibrated torque wrench and follow the applicable torque specifications for Grade 9 fasteners as defined by the equipment manufacturer or relevant code. De-energize and lock out all equipment before replacing or installing fasteners on electrical or mechanical systems.