Bowmalloy BOW36118 Hex Head Cap Screw 1/2-13 Steel

Product Description

The BOWMALLOY BOW36118 is a partially threaded hex head cap screw with a 1/2-13 thread size, manufactured from steel and finished with Bowma-Guard zinc-plated clear chromate coating. This fastener is designed for use in structural and mechanical assemblies where a reliable threaded connection and corrosion resistance are required. The partial threading allows the unthreaded shank to bear shear loads, making it suitable for applications that demand precision alignment and clamping strength. Licensed tradespeople and mechanical contractors working on HVAC equipment, piping supports, electrical enclosures, and similar trade installations commonly use this fastener type.

This hex head cap screw is appropriate for use in both light commercial and residential trade applications where a 1/2-13 UNC thread pattern is specified. The Bowma-Guard coating provides a corrosion-resistant barrier suited for indoor and light-exposure environments. Its partial thread design is commonly specified in bolted joint assemblies where the shank must pass through a clearance hole before engaging a nut or tapped bore. Typical installation scenarios include mounting equipment to structural steel, securing pipe hangers, and fastening access panels or frames in mechanical systems.

Key Features

• 1/2-13 UNC thread size for compatibility with standard 1/2-inch nuts and tapped holes
• Partial threading allows shank to carry shear loads and aid alignment
• Steel construction provides strength for structural and mechanical fastening
• Bowma-Guard zinc-plated clear chromate finish offers corrosion resistance
• Hex head drive style for use with standard wrenches and sockets

Compatibility

Designed as a standard 1/2-13 UNC partially threaded hex head cap screw for use with compatible hex nuts, flat washers, and tapped holes meeting ASME or equivalent specifications for this thread size.

Installation Notes

Installation is typically performed by licensed mechanical, HVAC, or electrical contractors as part of equipment mounting or structural fastening work. Always de-energize and lock out equipment before fastening or removing hardware in proximity to electrical components. Use a calibrated torque wrench and follow the fastener manufacturer or equipment OEM torque specifications for the application. Do not mix thread standards or overtighten, as this can damage threads or compromise joint integrity.