Bowmalloy BOW36807 Hex Lock Nut 1-1/2-12 Grade 9

Product Description

The BOWMALLOY BOW36807 is a Grade 9 steel hex lock nut designed for high-strength fastening applications where vibration resistance and joint integrity are critical. Sized at 1-1/2-12 thread (inch series, right-hand thread), this nut measures 1-9/32 inches in height and 2-1/4 inches across the flats. The Bowma-Guard finish provides corrosion protection for use in demanding environments. Grade 9 hardware is specified for heavy-duty mechanical assemblies where standard Grade 5 or Grade 8 fasteners are insufficient. Sold in packs of 10, this nut is a direct fit for structural and mechanical applications requiring high-clamp-load retention.

This hex lock nut is used in industrial, heavy equipment, and structural mechanical assemblies where large-diameter, fine-thread fasteners are required. The 1-1/2-12 fine thread pitch provides greater thread engagement and improved torque control compared to coarse thread equivalents. Typical applications include agricultural machinery, construction equipment, drivetrain assemblies, and heavy-fabrication work where fastener loosening under dynamic load is a primary concern. Installation is performed by millwrights, heavy equipment technicians, and industrial mechanics.

Key Features

• Grade 9 steel construction for superior tensile and proof load strength
• 1-1/2-12 inch-series fine thread for precise torque control and increased thread engagement
• Bowma-Guard finish for enhanced corrosion resistance in harsh service environments
• Hex lock nut profile resists loosening under vibration and dynamic loading
• Right-hand thread direction, standard for most mechanical assemblies
• Sold in a pack of 10 to support job-quantity needs

Compatibility

Designed as a high-strength replacement or service hex lock nut for any application requiring a 1-1/2-12 inch-series right-hand thread fastener with Grade 9 rating.

Installation Notes

Installation should be performed by a qualified mechanic or millwright familiar with high-strength fastener torque procedures. Always degrease mating threads and inspect for damage before installation. Follow the applicable equipment manufacturer torque specifications for Grade 9 fasteners. Reuse of lock nuts is generally not recommended in safety-critical joints.