Value Collection 451082BR Hex Cap Screw 1-1/2-12 Grade 8

Product Description

The VALUE COLLECTION 451082BR is a fully threaded hex head cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. It features a 1-1/2-12 UNF thread and measures 3-1/2 inches under the head, providing deep thread engagement for secure clamping force. Manufactured from Grade 8 steel with a bright uncoated finish, this fastener meets the dimensional and mechanical requirements of ASME B18.2.1. At 2.69 pounds, it is a heavy-duty fastener suited for applications demanding elevated tensile and proof load performance. Machinists, millwrights, and maintenance mechanics are the typical installers.

This cap screw is used in heavy equipment assembly, machinery mounting, structural connections, and hydraulic or mechanical press work where a fine thread pitch provides precise torque control and vibration resistance. The 1-1/2-12 UNF thread series is commonly selected over coarse thread when material thickness is limited or when closer thread engagement is needed. The fully threaded configuration allows clamping across the entire fastener length, making it suitable for through-bolt applications and shorter joint stacks.

Key Features

• Grade 8 steel construction meets high tensile strength requirements for demanding mechanical assemblies
• 1-1/2-12 UNF fully threaded profile provides fine thread engagement over the full 3-1/2 inch length
• Bright uncoated finish — no coating thickness to account for in close-tolerance fits
• Conforms to ASME B18.2.1 dimensional standards for consistent fitment and interchangeability
• 2-1/4 inch hex key (wrench) size for use with standard heavy-duty open-end or box-end wrenches
• UNSPSC Code 31161501 for procurement and catalog classification

Compatibility

Designed as an OEM-style and aftermarket replacement hex head cap screw for any application requiring a 1-1/2-12 UNF fully threaded Grade 8 fastener conforming to ASME B18.2.1.

Installation Notes

Installation should be performed by a qualified mechanic or millwright familiar with high-strength fastener procedures. Ensure mating threads are clean and free of debris before installation; do not use fasteners with damaged threads. Apply thread lubricant or anti-seize only if specified by the equipment manufacturer, as lubrication affects torque-to-clamp-force values. Always follow the equipment manufacturer torque specifications for Grade 8 fasteners of this size.