Value Collection 451087BR Hex Head Cap Screw Grade 8

Product Description

The VALUE COLLECTION 451087BR is a fully threaded hex head cap screw manufactured from Grade 8 steel with a bright uncoated finish. It measures 1-1/2-12 UNF thread size with a 4-inch length under head, providing high tensile strength suitable for heavy-duty bolted assemblies. Conforming to ASME B18.2.1, this fastener meets the dimensional and mechanical standards required for critical structural and mechanical connections. The hex drive accepts a 2-1/4-inch hex key or standard hex socket. Weighing approximately 2.93 pounds per unit, this is a substantial fastener intended for industrial, commercial, and trade applications where Grade 8 strength is specified.

This fastener is used in heavy equipment assembly, structural fabrication, industrial machinery, and mechanical systems where high-strength fasteners are required by specification. The fully threaded shank allows engagement along the full 4-inch length, making it well suited for through-bolt applications and thick-material connections. HVAC equipment mounting, pump bases, mechanical support structures, and similar trade installations commonly call for Grade 8 hex cap screws of this size. Installation is performed by qualified mechanics, millwrights, or field technicians following applicable torque specifications for Grade 8 fasteners.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• Fully threaded shank — 1-1/2-12 UNF thread over the full 4-inch length under head
• Bright uncoated finish — suitable for dry indoor environments or where coating is not specified
• Conforms to ASME B18.2.1 dimensional standard
• 2-1/4-inch hex drive compatible with standard hex sockets and wrenches

Compatibility

Designed as a standard inch-series hex head cap screw per ASME B18.2.1 for use in any application specifying a 1-1/2-12 UNF Grade 8 fully threaded fastener.

Installation Notes

Installation should be performed by a qualified mechanic or technician familiar with Grade 8 fastener torque requirements. De-energize and lock out any equipment before fastener service. Use a calibrated torque wrench and apply the torque value specified by the equipment manufacturer or applicable engineering standard for Grade 8 fasteners of this thread size. Do not substitute a lower-grade fastener in a Grade 8 application.