Value Collection 451785BR Hex Cap Screw 1-1/2-6x15 Grade 8

Product Description

The VALUE COLLECTION 451785BR is a heavy-duty hex head cap screw designed for high-strength bolted assemblies in demanding industrial and mechanical applications. Manufactured from Grade 8 steel with a bright, uncoated finish, this fastener offers superior tensile strength over lower-grade hardware. The partially threaded shank measures 15 inches under the head with a 1-1/2-6 UNC thread pattern, making it well-suited for thick structural connections where a grip length is required. It conforms to ASME B18.2.1 dimensional standards, ensuring consistent fitment with standard hex nuts and washers. At 8.42 pounds, this is a substantial fastener intended for heavy structural or machinery work.

This cap screw is used in heavy equipment assembly, structural steel fabrication, machinery mounting, and industrial maintenance applications. The large 1-1/2-6 UNC thread size and extended 15-inch length target thick-section connections in manufacturing, construction, and mechanical infrastructure work. Millwrights, ironworkers, and maintenance mechanics are the typical installers. The partially threaded design allows the unthreaded shank to bear shear loads while the threaded section provides clamping force at the nut.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• 1-1/2-6 UNC thread pattern, partially threaded for combined shear and clamping performance
• 15 inches length under head accommodates thick structural members
• Bright, uncoated finish suitable for applications where coating is applied post-installation or not required
• Conforms to ASME B18.2.1 dimensional standard
• 2-1/4 inch hex key size for use with standard heavy hex tooling

Compatibility

Designed as an OEM-style replacement or new-installation fastener compatible with standard 1-1/2-6 UNC heavy hex nuts and washers per ASME B18.2.1 specifications.

Installation Notes

Installation should be performed by qualified millwrights, ironworkers, or mechanical maintenance personnel familiar with high-strength fastener torque requirements. Always consult the applicable structural or equipment specification for proper torque values before tightening. Use a heavy-duty torque wrench and appropriate 2-1/4 inch hex socket rated for Grade 8 fasteners. De-energize and lockout or tag out any associated machinery before performing fastener service per OSHA lockout/tagout requirements.