Bowmalloy BOWMP36161 Hex Cap Screw 5/8-11 X 6 in Grade 9

Product Description

The BOWMALLOY BOWMP36161 is a Grade 9 steel hex head cap screw sized at 5/8-11 thread with a 6-inch length under head. It is partially threaded and finished with Bowma-Guard coating, which is designed to resist corrosion in demanding service environments. This fastener is used in heavy-duty mechanical and structural assemblies where high tensile strength and reliable clamping force are required. Installation is performed by millwrights, maintenance mechanics, and industrial tradespeople working on equipment, structural steel, or fabricated assemblies requiring inch-series fasteners.

The BOWMP36161 is suited for industrial, commercial, and heavy equipment applications where Grade 9 fasteners are specified. Grade 9 exceeds the strength requirements of Grade 8 and is commonly called out in OEM equipment specs, agricultural machinery, and high-stress structural connections. The partial threading allows for a stronger shank grip in through-bolt applications and reduces galling risk in clearance holes. Sold in a package quantity of 10 per unit of measure.

Key Features

• Grade 9 steel construction for high tensile strength exceeding Grade 8 requirements
• 5/8-11 UNC inch-series thread for broad compatibility with standard inch hardware
• 6-inch length under head provides reach for deep through-bolt applications
• Partially threaded shank for improved shear resistance and grip in clearance holes
• Bowma-Guard finish for enhanced corrosion resistance in harsh or outdoor environments
• Sold in packs of 10 to suit job-quantity purchasing

Compatibility

Designed for use in standard inch-series 5/8-11 tapped holes or with matching hex nuts in through-bolt configurations requiring Grade 9 fastener specifications.

Installation Notes

Installation should be performed by qualified mechanics or tradespeople using properly calibrated torque tools appropriate for Grade 9 fasteners at this diameter and thread pitch. Always verify hole alignment and thread condition before installation. Do not substitute Grade 9 fasteners with lower-grade hardware in applications where Grade 9 is specified, as load ratings will not be met. Follow applicable industry standards and equipment OEM torque specifications for this fastener size.