Bowmalloy BOW36129 Hex Head Cap Screw 9/16-12 X 1 in

Product Description

The BOWMALLOY BOW36129 is a fully threaded hex head cap screw engineered for high-strength bolted connections in demanding trade and industrial applications. Manufactured from Grade 9 steel - one of the highest-strength classifications in the inch-series fastener system - this screw delivers exceptional tensile and proof-load performance where standard Grade 5 or Grade 8 hardware falls short. The 9/16-12 thread size paired with a 1-inch length under the head covers a wide range of structural, mechanical, and equipment-mounting applications. The Bowma-Guard finish provides a zinc-plated clear chromate coating that resists corrosion in typical indoor and light-duty outdoor environments. Sold in packages of 25 units.

This fastener is suited for heavy equipment assembly, structural steel connections, agricultural machinery, and industrial fabrication work where high clamp load and fatigue resistance are required. Grade 9 screws are commonly specified in applications that demand performance beyond SAE Grade 8 limits. Millwrights, ironworkers, heavy equipment technicians, and industrial maintenance mechanics routinely install this type of fastener in machine frames, brackets, gearboxes, and structural assemblies.

Key Features

• Grade 9 steel construction for superior tensile strength above standard Grade 8 fasteners
• Fully threaded 9/16-12 UNC thread for maximum thread engagement across the full shank length
• Bowma-Guard zinc-plated clear chromate finish for corrosion resistance
• 1-inch length under head suits a broad range of structural and mechanical joint thicknesses
• Inch-system dimensions for compatibility with standard SAE tooling and hardware
• Packaged in quantities of 25 for efficient job-site or shop use

Compatibility

Designed as a high-strength inch-series hex head cap screw for use in any application specifying a fully threaded 9/16-12 x 1-inch Grade 9 fastener with a zinc-plated finish.

Installation Notes

Installation should be performed by qualified mechanics or tradespeople using calibrated torque equipment rated for Grade 9 fastener specifications. Always consult the equipment manufacturer's torque requirements and applicable structural codes before final tightening. Inspect mating threads and bearing surfaces for damage before assembly. Do not substitute a lower-grade fastener in applications where Grade 9 is specified.