Value Collection 581969BR Hex Socket Cap Screw 1-1/2-12 Unf

Product Description

The VALUE COLLECTION 581969BR is a partially threaded hex socket cap screw designed for high-strength bolted assemblies requiring precise clamping force and a clean, recessed drive interface. This fastener measures 6 inches in length under the head with a 1-1/2-12 UNF thread size, making it suited for fine-thread applications where vibration resistance and thread engagement depth are critical. It is manufactured from alloy steel with a black oxide coating that provides moderate corrosion resistance and reduces surface reflectivity. Licensed tradespeople and maintenance mechanics in industrial, mechanical, and structural applications install this type of fastener using a 1-inch hex (Allen) key or socket drive tool.

This screw is used in heavy mechanical assemblies, industrial equipment, and structural fixtures where a countersunk or low-profile drive head is required. The 1-1/2-12 UNF fine-thread pitch is common in precision machinery, hydraulic component mounting, and high-load bolted joints. The partially threaded shank provides a smooth bearing surface through the joint interface, which helps maintain alignment and resist shear forces in demanding service environments.

Key Features

• 1-1/2-12 UNF fine-thread profile for high vibration resistance and precise torque control
• 6-inch length under head with partial threading for shear-resistant joint construction
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM A574 standards
• Black oxide finish reduces surface reflectivity and provides light corrosion protection
• 1-inch hex drive size accepts standard hex keys and socket drive tools

Compatibility

Designed as an OEM-style and replacement fastener for heavy mechanical, industrial, and structural bolted assemblies requiring 1-1/2-12 UNF fine-thread hex socket cap screws conforming to ASME/ANSI B18.3 and ASTM A574.

Installation Notes

Installation should be performed by a qualified mechanic or maintenance technician familiar with fastener torque requirements for alloy steel cap screws. Always ensure mating threads are clean and free of debris before installation, and verify thread engagement depth meets the requirements of the assembly design. Use a calibrated torque wrench or torque screwdriver with the correct 1-inch hex bit to achieve the specified clamp load. Follow applicable mechanical standards and equipment manufacturer guidelines for fastener installation procedures.