Value Collection 99226 Hex Head Cap Screw Grade 8 Steel

Product Description

The VALUE COLLECTION 99226 is a hex head cap screw designed for high-strength fastening applications in mechanical, structural, and industrial assemblies. This fastener measures 1-8 thread size with a 6-1/2 inch length under head and is manufactured from Grade 8 steel in an uncoated finish. The partial thread configuration provides a smooth shank section that improves shear resistance in bolted joint applications. Conforming to ASME B18.2.1 and SAE J429 standards, this screw meets the dimensional and mechanical property requirements expected by contractors, millwrights, and maintenance professionals working with inch-series hardware.

This fastener is suited for heavy-duty bolted connections where a Grade 8 tensile rating is specified. Typical applications include equipment mounting, structural steel connections, machinery assembly, and maintenance repair work requiring a coarse UNC thread pattern. The partially threaded shank makes it particularly well suited for through-bolt installations where the unthreaded section spans a shear plane between clamped components. Sold in a package quantity of 10 with a minimum order quantity of 1.

Key Features

• Grade 8 steel construction meets SAE J429 mechanical property requirements for high-strength applications
• Partially threaded shank provides a smooth bearing section to resist shear loads at joint interfaces
• UNC (Unified National Coarse) thread standard for broad compatibility with standard inch-series nuts and tapped holes
• Uncoated finish suitable for use where a secondary coating or plating will be applied, or in dry indoor environments
• Conforms to ASME B18.2.1 dimensional standards for consistent head geometry and thread engagement

Compatibility

Designed for use with standard inch-series UNC hex nuts and washers. Intended for Grade 8 bolted joint applications requiring a 1-8 thread and 6-1/2 inch length under head per ASME B18.2.1 specifications.

Installation Notes

Installation should be performed by qualified mechanical or structural trades familiar with bolted joint assembly practices. Always confirm the mating nut and tapped hole are rated for Grade 8 loading before assembly. Follow applicable torque specifications from a recognized fastener standard or engineering specification for the joint being assembled, as no torque value is provided with this fastener alone. Inspect threads for damage before installation and replace any fastener that shows signs of cross-threading or deformation.