Value Collection D39055 Hex Head Cap Screw 3/8-16 X 1-1/4 in

Product Description

The VALUE COLLECTION D39055 is a fully threaded hex head cap screw designed for high-strength fastening applications. It features a 3/8-16 UNC thread and measures 1-1/4 inches under the head. Manufactured from Grade 8 steel with a zinc yellow dichromate finish, this fastener delivers elevated tensile strength and corrosion resistance suited to demanding mechanical and structural assemblies. It conforms to ASME B18.2.1 and SAE J429 standards, making it appropriate for applications where verified load ratings and dimensional consistency are required. Licensed tradespeople, maintenance mechanics, and industrial technicians rely on this grade for high-load joint integrity.

This hex head cap screw is suitable for use in mechanical equipment assemblies, structural steel connections, automotive and heavy equipment repair, and general industrial maintenance where Grade 8 strength is specified. The fully threaded shank provides consistent thread engagement across the full grip length, making it well suited for applications using nuts or threaded through-holes. It is sold in a minimum order quantity of 25 pieces, with individual package quantity of 1.

Key Features

• Grade 8 steel construction for high tensile and proof load strength per SAE J429
• Fully threaded shank for maximum thread engagement along the entire fastener length
• 3/8-16 UNC thread size for broad compatibility with standard inch-series hardware
• Zinc yellow dichromate finish provides corrosion resistance and visual identification of Grade 8 classification
• Conforms to ASME B18.2.1 and SAE J429 dimensional and mechanical standards
• Minimum order quantity of 25 units supports service stock and bulk assembly use

Compatibility

Designed as a standard inch-series hex head cap screw for use with 3/8-16 UNC threaded nuts, inserts, or tapped holes in steel, iron, and compatible structural materials where Grade 8 fasteners are specified.

Installation Notes

Installation is performed by mechanics and maintenance technicians using standard hex wrenches or socket sets sized for a 3/8-16 hex head cap screw. Ensure mating threads are clean and free of debris before installation. Apply torque according to the engineered joint specification for Grade 8 fasteners at this thread size — do not estimate torque without consulting appropriate fastener torque tables or the equipment service manual. Follow applicable industry standards and equipment manufacturer guidelines for fastener reuse and replacement intervals.