Value Collection 99223 Hex Head Cap Screw 1-8x5 Grade 8

Product Description

The VALUE COLLECTION 99223 is a partially threaded hex head cap screw designed for heavy-duty fastening applications in mechanical, structural, and industrial assemblies. Built to Grade 8 steel specification, this fastener delivers high tensile strength suited for joints subject to significant load and vibration. It carries a 1-8 thread size with a 5-inch length under head, following UNC thread standards and manufactured in conformance with ASME B18.2.1. The uncoated finish makes it a straightforward choice where bare steel is acceptable or where a specific coating will be applied in the field. Machinists, millwrights, and maintenance technicians are the primary installers.

This cap screw is used across a wide range of industrial and trade applications including equipment mounting, structural steel connections, heavy machinery assembly, and general mechanical fastening where Grade 8 strength is required. The partially threaded shank provides a smooth bearing surface in the grip zone, which is critical for shear-loaded joints. Sold in a package quantity of 10 with a minimum order quantity of 1 package, this SKU suits both single-repair needs and small-batch maintenance work.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• Partially threaded shank provides a clean grip zone for shear-loaded joints
• 1-8 UNC thread standard ensures broad nut and tapped-hole compatibility
• Conforms to ASME B18.2.1 dimensional and tolerance standards
• Uncoated finish suitable for bare-steel applications or field-applied coatings
• Package quantity of 10 per order

Compatibility

Designed as a standard UNC Grade 8 hex head cap screw for use with any 1-8 UNC threaded nut or tapped hole requiring ASME B18.2.1-compliant fasteners.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance technicians using standard hex wrenches or impact tools rated for Grade 8 fasteners. Always verify thread engagement depth and grip length before final assembly. Follow applicable torque guidelines from ASME or the equipment manufacturer for Grade 8 fasteners of this thread size. Inspect mating threads for damage before installation to avoid galling or cross-threading.