Value Collection 99229 Hex Head Cap Screw Grade 8

Product Description

The VALUE COLLECTION 99229 is a Grade 8 steel hex head cap screw designed for high-strength fastening applications. Measuring 1-8 thread size by 8 inches in length under head, this screw features Unified National Coarse (UNC) threading and is partially threaded along the shank. The uncoated finish leaves the steel bare, making it suitable for use in dry or controlled environments where additional coating is not required. Grade 8 classification indicates high tensile strength, appropriate for demanding mechanical and structural assemblies. This fastener is manufactured to ASME B18.2.1 standards, ensuring dimensional consistency and reliable performance. Machinists, maintenance technicians, and industrial tradespeople commonly install this hardware in heavy equipment, structural frames, and machine assemblies.

The 99229 is well suited for heavy-duty fastening in industrial and commercial maintenance settings. Its partially threaded shank provides a smooth grip section beneath the head, which is preferred in applications where shear load transfer between clamped materials is critical. The 8-inch length accommodates thick-section assemblies and stacked components common in industrial machinery and structural steel work. Tradespeople working in manufacturing, HVAC equipment installation, and mechanical maintenance will find this screw appropriate for bolted joint applications requiring Grade 8 performance.

Key Features

• Grade 8 steel construction for high tensile strength in demanding fastening applications
• Partially threaded shank provides a grip section for improved shear load performance
• UNC thread form for broad compatibility with standard inch-series hardware
• Manufactured to ASME B18.2.1 for consistent dimensional tolerances
• Uncoated finish suitable for controlled-environment installations
• Package quantity of 10 per unit for maintenance stock and job-lot use

Compatibility

Designed as a standard inch-series hex head cap screw for use with Grade 8-compatible nuts and washers in 1-8 UNC threaded assemblies following ASME B18.2.1 dimensional standards.

Installation Notes

Installation is performed by machinists or maintenance technicians using standard hex wrenches or impact tooling sized for a 1-8 hex head. Ensure mating nut and threaded hole meet UNC 1-8 specifications before installation. Torque to the value specified by the equipment manufacturer or applicable structural code for Grade 8 fasteners. Inspect threads for damage before assembly, and do not reuse fasteners that show signs of stretching or thread deformation.