Value Collection 581222BR Hex Socket Cap Screw 1-1/2-6 Unc

Product Description

The Value Collection 581222BR is a partially threaded hex socket cap screw designed for heavy-duty fastening applications where high clamping strength and a flush or recessed head profile are required. It features a 1-1/2-6 UNC thread size, an 18-inch length under head, and a 1-inch hex drive. The screw is manufactured from alloy steel and finished with a black oxide coating that provides mild corrosion resistance and reduces light reflection. This fastener meets ASME/ANSI B18.3 and ASTM A574 standards, making it appropriate for structural and mechanical assemblies handled by machinists, millwrights, and maintenance professionals.

This socket cap screw is suited for industrial, manufacturing, and mechanical maintenance environments where large-diameter, long-length fasteners are needed. The partial threading allows the unthreaded shank to act as a precision locating or shear feature in bolted joints. Typical applications include heavy machinery assembly, jig and fixture fabrication, and structural mechanical connections requiring a recessed-drive, high-strength fastener.

Key Features

• 1-1/2-6 UNC thread for high clamping load in coarse-thread applications
• 18-inch length under head accommodates deep grip or long clamping stack
• Partially threaded shank provides shear strength and precision alignment
• 1-inch hex drive accepts standard socket or hex key tooling for high-torque installation
• Alloy steel construction meets ASTM A574 strength requirements
• Black oxide finish offers mild corrosion resistance and low-glare appearance

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw compatible with 1-1/2-6 UNC tapped holes in heavy mechanical and industrial assemblies.

Installation Notes

Installation should be performed by a qualified machinist or maintenance professional using a calibrated torque wrench and the correct 1-inch hex drive tool. Ensure the mating tapped hole meets 1-1/2-6 UNC specifications and has sufficient thread engagement before seating the fastener. Inspect threads for damage and apply thread lubricant or anti-seize as required by the assembly specification. Follow applicable industry standards and equipment manufacturer guidelines for torque and clamping load requirements.