Bowmalloy 36357 Hex Head Cap Screw 3/8-24 X 1-3/4 in Grade 9

Product Description

The BOWMALLOY 36357 is a partially threaded hex head cap screw engineered for high-strength fastening applications in mechanical, structural, and industrial assemblies. Manufactured from Grade 9 alloy steel, this fastener delivers superior tensile strength compared to standard Grade 5 or Grade 8 hardware. The 3/8-24 UNF thread size and 1-3/4 inch length under the head make it suited for precision-fit bolted joints where fine-thread engagement and load resistance are critical. A zinc-plated clear chromate finish provides a baseline level of corrosion protection for general-use environments. Installed by maintenance technicians, millwrights, and mechanical contractors.

This cap screw is used in applications requiring a fine-thread fastener with high clamping force, such as equipment frames, machine assemblies, and mounting brackets. The 3/8-24 thread pitch provides tighter thread engagement than coarse-thread equivalents, making it a preferred choice in vibration-prone assemblies. The hex drive head accepts standard hex wrenches and impact sockets, fitting both hand-tool and power-tool installation workflows. Sold in packages of 100 units, this SKU is well suited for shop stock, field service kits, and maintenance replenishment orders.

Key Features

• Grade 9 alloy steel construction for high tensile and proof load strength
• 3/8-24 UNF fine thread for improved clamping force and vibration resistance
• 1-3/4 inch length under head with partial threading for through-bolt and clamped-joint applications
• Zinc-plated clear chromate finish for corrosion resistance in general service conditions
• Hex head drive compatible with standard wrenches and impact sockets
• Package quantity of 100 units supports bulk stocking and field replenishment

Compatibility

Designed as an OEM-style replacement or stock fastener for mechanical and industrial assemblies requiring a 3/8-24 UNF 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 fastener torque requirements for the specific joint being assembled. Always consult the equipment manufacturer's torque specifications for 3/8-24 Grade 9 fasteners before final tightening. Inspect mating threads for damage or contamination before installation. Follow applicable mechanical codes and equipment service documentation for fastener replacement procedures.