Value Collection 99252 Hex Head Cap Screw Grade 8

Product Description

The VALUE COLLECTION 99252 is a heavy-duty hex head cap screw designed for high-strength bolted connections in demanding industrial and mechanical applications. Manufactured from Grade 8 steel in an uncoated finish, this fastener measures 1-1/4-7 UNC thread size with an 8-inch length under head. It is partially threaded, which allows the unthreaded shank to carry shear loads and maintain precise joint alignment. Installation requires a standard hex wrench or impact socket. This screw conforms to ASME B18.2.1, confirming dimensional consistency across the lot. Maintenance technicians, millwrights, and mechanical contractors rely on this class of fastener for structural and machine assembly work.

This cap screw is suited for heavy equipment assembly, structural steel connections, machinery mounting, and other applications where Grade 8 tensile strength is required. The partially threaded shank is typical in through-bolt and clearance-hole configurations where grip length matters. The UNC thread form is widely compatible with standard inch-series nuts and tapped holes. Sold in a package quantity of 2, this screw is appropriate for low-volume repair work or as a replacement fastener in the field.

Key Features

• Grade 8 steel construction for high tensile and proof load requirements
• 1-1/4-7 UNC thread provides coarse-thread engagement suitable for heavy-load joints
• 8-inch length under head accommodates thick material stacks and long grip lengths
• Partially threaded shank carries shear loads and improves joint integrity
• Conforms to ASME B18.2.1 for dimensional accuracy and interchangeability
• Uncoated finish for use in standard dry or protected environments

Compatibility

Designed as a standard inch-series hex head cap screw for use with 1-1/4-7 UNC nuts, washers, and tapped holes in heavy industrial and mechanical assemblies.

Installation Notes

Installation should be performed by a qualified mechanic or millwright familiar with high-strength fastener torque requirements. Derate torque as appropriate when using with uncoated fasteners and consult published Grade 8 torque tables for the correct target value. Always use a properly rated hex socket or wrench to avoid rounding the head. Inspect mating threads for damage or contamination before assembly.