Value Collection 99248 Hex Cap Screw 1-1/4-7 X 5-1/2 Grade 8

Product Description

The VALUE COLLECTION 99248 is a heavy-duty hex head cap screw designed for high-strength fastening applications across industrial, mechanical, and structural assemblies. Manufactured from Grade 8 steel with no surface coating, this fastener carries a thread size of 1-1/4-7 UNC and measures 5-1/2 inches under the head. The partial threading configuration concentrates clamping force in the unthreaded shank area, making it well suited for joints that require a grip length or where shank shear strength matters. Licensed fastener installers and mechanical tradespeople select Grade 8 hardware when bolt-load requirements exceed the capacity of lower-grade fasteners. This screw conforms to ASME B18.2.1 dimensional standards.

This fastener is appropriate for heavy mechanical assemblies, structural steel connections, machinery mounting, and equipment fabrication where high tensile strength and precise dimensional conformance are required. The 1-1/4-7 UNC coarse thread engages quickly in tapped holes and resists cross-threading under field conditions. The uncoated finish is suited for applications where a secondary coating, plating, or sealant will be applied by the end user, or where bare steel is acceptable for the service environment. Sold in a package quantity of 2.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• 1-1/4-7 UNC coarse thread for reliable engagement in standard tapped holes
• 5-1/2 inches length under head with partial threading for shank grip and shear strength
• Uncoated finish compatible with field-applied coatings or bare-steel service environments
• Conforms to ASME B18.2.1 dimensional standards for consistent fit and interchangeability
• Package quantity of 2 with a minimum order quantity of 1

Compatibility

Designed as a standard UNC hex head cap screw for use in any application requiring a 1-1/4-7 coarse-thread fastener conforming to ASME B18.2.1 specifications.

Installation Notes

Installation should be performed by a qualified mechanic or tradesperson familiar with fastener torque requirements for Grade 8 hardware. Always verify that the mating tapped hole or nut meets the thread class and material-strength requirements for the joint. Follow applicable industry standards and equipment manufacturer specifications for proper torque values. Inspect threads for damage before installation and do not use lubricants or thread treatments unless specified by the joint design.