Value Collection 581971BR Hex Socket Cap Screw 1-1/2-12 Unf

Product Description

The VALUE COLLECTION 581971BR is a heavy-duty hex socket cap screw designed for high-load fastening applications where precision threading and strong clamping force are required. It features a 1-1/2-12 UNF thread size, an 8-inch length under head, and a 1-inch hex drive. The fastener is manufactured from alloy steel and finished with a black oxide coating that provides moderate corrosion resistance and reduces light reflection. This screw is partially threaded, making it suitable for applications that require a smooth shank section for shear loading or precise alignment.

This cap screw is used in industrial, mechanical, and structural assemblies where fine-thread engagement and high tensile strength are critical. The large 1-1/2-12 UNF diameter paired with the fine thread pitch delivers strong clamping in applications such as heavy equipment fabrication, machine tool assembly, and industrial maintenance work. It is typically installed by millwrights, machinists, and maintenance mechanics working with heavy-duty structural or mechanical systems.

Key Features

• 1-1/2-12 UNF fine thread for high clamping force and precise adjustment
• 8-inch length under head accommodates thick material stacks
• Partially threaded shank supports shear loading and alignment
• Alloy steel construction for high tensile strength
• Black oxide finish provides mild corrosion resistance and low-glare appearance
• Meets ASME/ANSI B18.3 and ASTM A574 standards

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw suitable for use in any application requiring a 1-1/2-12 UNF partially threaded fastener with a 1-inch hex drive.

Installation Notes

Installation requires a 1-inch hex key or socket drive. Ensure mating threads are clean and free of debris before installation. Apply appropriate thread lubricant or torque to specification per the equipment manufacturer's requirements. Always power down or de-energize any associated equipment before fastener service on mechanical assemblies.