Value Collection B7HHB075C650 Hex Head Cap Screw

Product Description

The VALUE COLLECTION B7HHB075C650 is a Grade B7 alloy steel hex head cap screw sized 3/4-10 x 6-1/2 inches, supplied in an uncoated finish. Grade B7 is a high-strength alloy steel designation commonly specified for structural fastening, pressure vessel studs, and heavy industrial bolting where elevated tensile strength is required. This screw features a standard inch-system thread pitch of 10 threads per inch at a 3/4-inch nominal diameter. The uncoated finish makes it suitable for applications where a secondary coating, plating, or field treatment will be applied after installation. Weighing approximately 1 pound per unit, it is handled and installed by maintenance mechanics, pipefitters, millwrights, and industrial tradespeople.

This hex head cap screw is used in industrial and commercial bolting applications requiring high-strength fasteners. Typical uses include flange connections, pressure equipment assemblies, structural steel joints, and heavy machinery mounting. The Grade B7 alloy steel designation aligns with ASTM A193 specifications, making it a common choice for high-temperature and high-pressure bolted connections in industrial plants and commercial mechanical systems. The 3/4-10 coarse thread profile provides strong thread engagement in standard tapped holes and heavy hex nuts.

Key Features

• Grade B7 alloy steel construction for high tensile strength bolting applications
• 3/4-10 coarse thread, inch-system, for compatibility with standard tapped holes and hex nuts
• 6-1/2-inch length under head accommodates thick flanges and stacked assemblies
• Uncoated finish allows for field-applied plating, coating, or anti-seize treatment
• Hex head drive style fits standard open-end, box, and impact wrenches

Compatibility

Designed as a standard inch-series hex head cap screw for use with 3/4-10 tapped holes, heavy hex nuts, and flat washers in industrial and commercial bolting applications.

Installation Notes

Installation is typically performed by millwrights, pipefitters, or maintenance mechanics using standard open-end, box, or impact wrenches sized for 3/4-inch hex head fasteners. Always de-energize, depressurize, and lock out equipment before replacing or installing fasteners in pressurized or energized assemblies. Consult applicable codes such as ASME PCC-1 for pressure boundary bolted joints and follow the engineering torque specification for the assembly — do not estimate torque values. Inspect thread engagement and ensure mating nuts or tapped holes are clean and free of damage before installation.