Value Collection 99107 Hex Head Cap Screw 1/2-13 X 1-3/4 in Grade 8

Product Description

The VALUE COLLECTION 99107 is a fully threaded hex head cap screw designed for high-strength fastening applications in mechanical, structural, and industrial assembly work. Sized at 1/2-13 UNC thread with a 1-3/4-inch length under head, this fastener is manufactured from Grade 8 steel in an uncoated finish. Grade 8 steel provides a higher tensile and proof load rating than Grade 5 or Grade 2 fasteners, making it appropriate for demanding load-bearing connections. It conforms to ASME B18.2.1 and SAE J429 standards. This SKU is sold in a package quantity of 50 pieces.

This screw is suited for use in heavy equipment assembly, agricultural machinery, automotive applications, and structural steel fabrication where high-strength UNC fasteners are required. The fully threaded shank allows consistent clamping force along the full grip length, which is advantageous in shorter bolt applications. Machinists, millwrights, mechanics, and general contractors commonly use Grade 8 hex cap screws in applications that require resistance to vibration loosening and higher shear loads.

Key Features

• Grade 8 steel construction for high tensile strength and proof load performance
• 1/2-13 UNC thread size with fully threaded shank
• 1-3/4-inch length under head for precise fitment in standard connection depths
• Uncoated finish — suitable for use with user-applied thread compounds or locking adhesives
• Conforms to ASME B18.2.1 and SAE J429 standards
• Packaged in a quantity of 50 for job-site and shop use

Compatibility

Designed as a standard 1/2-13 UNC Grade 8 hex head cap screw compatible with any tapped hole or nut conforming to the 1/2-13 Unified National Coarse thread standard.

Installation Notes

Installation is performed using a standard hex wrench, socket, or impact driver sized for a 1/2-inch fastener. Ensure mating threads are clean and free of debris before assembly. Do not exceed the rated proof load for Grade 8 fasteners as specified in SAE J429. When used in vibration-prone applications, consider the use of a compatible thread-locking compound or hardened washer per the joint design requirements.