Value Collection 39246 Hex Head Cap Screw 1-1/4-7 X 6 in Grade 8

Product Description

The VALUE COLLECTION 39246 is a partially threaded hex head cap screw designed for heavy-duty fastening applications in industrial, mechanical, and structural assemblies. Manufactured from Grade 8 steel with a zinc yellow dichromate finish, this fastener delivers high tensile strength and corrosion resistance suitable for demanding environments. It conforms to ASME B18.2.1 standards, ensuring dimensional consistency for precision assemblies. The 1-1/4-7 UNC thread and 6-inch length under head make it appropriate for thick-stock or deep-clearance fastening situations where a full-thread screw would not seat correctly.

This cap screw is used across a range of commercial and industrial applications including equipment mounting, structural steel connections, machinery assembly, and heavy fabrication. The partially threaded shank provides a bearing surface that resists shear loading, making it a preferred choice where the fastener passes through unthreaded clearance holes before engaging a tapped bore or nut. Sold in a package quantity of 2, it is suited for maintenance, repair, and low-volume assembly work.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• Zinc yellow dichromate finish provides corrosion and oxidation resistance
• Partially threaded shank resists shear forces in clearance-hole applications
• UNC thread form (1-1/4-7) for compatibility with standard inch-series tapped holes and nuts
• Conforms to ASME B18.2.1 dimensional standards
• Package quantity of 2 for maintenance and repair use

Compatibility

Designed as an OEM-style replacement or standard-service hex head cap screw for inch-series fastener applications requiring a 1-1/4-7 UNC thread and 6-inch length under head in Grade 8 steel.

Installation Notes

Installation should be performed by a qualified mechanic or millwright following applicable torque specifications for Grade 8 fasteners as referenced in engineering documentation or standards such as ASME guidelines. Ensure mating threads are clean, undamaged, and properly sized before installation. Apply thread lubricant or anti-seize only when specified by the equipment manufacturer, as lubrication affects torque-tension relationships. Always use properly rated tooling and confirm the fastener is fully seated before returning equipment to service.