Bowmalloy 36197 Hex Head Cap Screw 7/8-9 X 2-3/4 in Grade 9

Product Description

The BOWMALLOY 36197 is a fully threaded hex head cap screw designed for high-strength fastening applications in mechanical, structural, and industrial assembly work. Built from Grade 9 alloy steel, this fastener delivers superior tensile strength compared to standard Grade 5 or Grade 8 hardware. The clear zinc chromate finish provides corrosion resistance in demanding service environments. With a 7/8-9 thread size and a 2-3/4 inch length under head, it is suited for heavy-duty bolted connections where reliability under load is critical. Machinists, millwrights, and industrial maintenance technicians are the primary installers of this fastener class.

This cap screw is used in a wide range of industrial and heavy equipment applications, including structural steel connections, machinery frames, agricultural equipment, and construction hardware assemblies. The 7/8-9 unified coarse thread profile is a common standard in inch-system mechanical assemblies. The fully threaded configuration maximizes thread engagement across the full length of the fastener, making it well suited for through-bolt and nut applications where maximum grip length is needed.

Key Features

• Grade 9 alloy steel construction for high tensile strength fastening
• Fully threaded shank maximizes thread engagement along the entire length
• Clear zinc chromate finish provides corrosion resistance
• 7/8-9 unified coarse thread for broad compatibility with standard inch-system hardware
• 2-3/4 inch length under head suits medium-to-deep bolted connections

Compatibility

Designed as an OEM-style replacement or maintenance fastener for inch-system assemblies requiring a 7/8-9 threaded hex head cap screw in Grade 9 alloy steel.

Installation Notes

Installation should be performed by a qualified mechanic, millwright, or maintenance technician familiar with torque requirements for Grade 9 fasteners. Always consult the equipment manufacturer's specifications for proper clamp load and torque values before installation. Use appropriate hex wrenches or impact tooling rated for 7/8-inch fastener drive. Inspect mating threads and hardware for damage or corrosion before assembly.