Value Collection HGNFI8150-010BX Hex Nut 1-1/2-12 Grade 8

Product Description

The VALUE COLLECTION HGNFI8150-010BX is a heavy-duty hex nut designed for high-load fastening applications requiring a 1-1/2-12 UNF thread specification. Manufactured from Grade 8 steel with a bright, uncoated finish, this nut delivers the elevated tensile and proof-load strength that Grade 8 classification requires. It features a 2-inch width across flats and a height of 1-9/32 inches, making it suitable for large-diameter bolted assemblies in industrial, mechanical, and structural settings. Right-hand threading follows standard UNF conventions. Machinists, maintenance technicians, and mechanical contractors are the typical installers for fasteners in this size class.

This hex nut is suited for heavy industrial and commercial applications where fine-thread engagement and high clamping force are both critical. The 1-1/2-12 UNF thread pitch provides finer thread engagement than coarse-thread alternatives, which improves resistance to loosening under vibration and allows more precise torque control. It is commonly found in large machinery assemblies, structural steel connections, and heavy equipment maintenance where Grade 8 strength is specified by the engineer of record.

Key Features

• Grade 8 steel construction for high proof load and tensile strength requirements
• 1-1/2-12 UNF fine-thread specification for improved vibration resistance and torque control
• 2-inch width across flats fits standard heavy-duty wrenching tools
• Height of 1-9/32 inches provides full thread engagement depth
• Bright, uncoated finish — suitable for applications where coating or plating is not required
• Right-hand thread direction follows standard UNF convention

Compatibility

Designed for use with 1-1/2-12 UNF Grade 8 bolts and threaded rod in heavy industrial and mechanical assemblies where fine-thread, high-strength fasteners are specified.

Installation Notes

Installation is performed by machinists, millwrights, or mechanical maintenance technicians using appropriately sized heavy-duty wrenches or impact tooling rated for the fastener size. Always ensure the mating bolt or stud is the same thread standard, thread size, and material grade before assembly. De-burr and inspect threads before installation to prevent galling on steel fasteners of this diameter. Follow the torque specifications provided by the equipment manufacturer or engineer of record — do not estimate torque on Grade 8 fasteners in critical joints.