Bowmalloy BOW36805 Hex Lock Nut 1-1/8-12 Grade 9

Product Description

The BOWMALLOY BOW36805 is a Grade 9 steel hex lock nut designed for high-strength fastening applications where vibration resistance and load retention are critical. Sized at 1-1/8-12 thread pitch with right-hand threading, this nut meets the demands of heavy-duty mechanical and structural assemblies. The proprietary Bowma-Guard finish provides corrosion resistance suited for industrial environments. At 31/32 inches high and 1-11/16 inches across the flats, it follows standard inch-measurement sizing. Sold in packages of 10, it is well-suited for contractors, maintenance crews, and trade professionals working with large-diameter fastener assemblies.

This hex lock nut is used in heavy mechanical, industrial, and structural applications that require a secure, vibration-resistant connection. Typical installations include equipment mounting, drive shaft assemblies, and structural framing where a 1-1/8-12 UNF thread engagement is specified. The Grade 9 material rating indicates elevated proof load and tensile strength compared to standard Grade 5 or Grade 8 fasteners, making it appropriate for high-stress service conditions. Packaged in quantities of 10 to support job-site efficiency.

Key Features

• Grade 9 steel construction for superior tensile and proof load strength
• 1-1/8-12 thread size with right-hand thread direction
• Bowma-Guard finish for enhanced corrosion resistance
• 31/32 inches height and 1-11/16 inches width across flats for standard inch tooling
• Hex lock nut design resists loosening under vibration and dynamic loads
• Packaged in quantities of 10 for job-site convenience

Compatibility

Designed as a high-strength replacement or service hex lock nut for 1-1/8-12 UNF threaded fastener applications using inch-measurement hardware.

Installation Notes

Installation should be performed by qualified mechanical or maintenance technicians familiar with high-strength fastener procedures. De-energize and lock out all equipment before servicing threaded connections in powered assemblies. Use a properly sized hex wrench or socket sized to 1-11/16 inches across the flats to avoid rounding the nut. Follow applicable torque specifications from the equipment manufacturer or relevant industry standards for Grade 9 fastener installations.