Bowmalloy 36152 Hex Head Cap Screw 5/8-11 2-3/4 in Grade 9

Product Description

The BOWMALLOY 36152 is a Grade 9 alloy steel hex head cap screw sized at 5/8-11 thread with a 2-3/4 inch length under the head. Grade 9 alloy steel provides high tensile strength suited for heavy-duty fastening applications where standard Grade 5 or Grade 8 hardware is insufficient. The screw features a clear zinc chromate finish that delivers baseline corrosion resistance. It is partially threaded, which maintains clamping force on the shank rather than thread engagement alone. This fastener is specified by mechanical contractors, millwrights, and industrial maintenance technicians working on structural assemblies, equipment mounting, and heavy mechanical connections.

This screw is used in industrial, commercial, and heavy mechanical applications where high-strength inch-series fasteners are required. The 5/8-11 UNC thread pattern is a common size across structural steel connections, machinery frames, and equipment bases. The partial threading makes it well suited for through-bolt applications where a smooth shank span is needed across clamped material. It is sold in packages of 25 pieces with a minimum order quantity of 1 package.

Key Features

• Grade 9 alloy steel construction for high tensile strength beyond standard Grade 8 fasteners
• 5/8-11 UNC thread size in the inch measurement system
• 2-3/4 inch length under the head for through-bolt and deep-clearance installations
• Partially threaded shank maintains clamping integrity across joined material
• Clear zinc chromate finish provides corrosion resistance in general service environments
• Packaged in quantities of 25 pieces per package

Compatibility

Designed as a high-strength inch-series hex head cap screw for use in industrial machinery, structural steel, and heavy mechanical equipment applications requiring 5/8-11 UNC thread fasteners.

Installation Notes

Installation is performed by millwrights, mechanical contractors, or maintenance technicians using standard hex wrenches or impact tooling rated for 5/8-inch fasteners. Torque to the fastener manufacturer or equipment OEM specification for Grade 9 hardware. Always inspect threads and mating nut or tapped hole for damage before installation. Follow applicable industry standards and equipment service documentation when fastening structural or load-bearing connections.