Value Collection 011507BR Hex Socket Cap Screw 7/8-9 Unc

Product Description

The VALUE COLLECTION 011507BR is a partially threaded hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, fabrication, and industrial maintenance. It features a 7/8-9 UNC thread size with a 3-1/2 inch length under the head and is driven with a 3/4 inch hex key. Constructed from alloy steel with a black oxide finish, this fastener delivers solid corrosion resistance and surface hardness suited to demanding environments. It meets ASME/ANSI B18.3 and ASTM A574 standards, making it appropriate for load-bearing and precision-fit installations where fastener grade matters.

This screw is used in general industrial, mechanical, and structural fastening scenarios where a recessed-drive, high-strength cap screw is required. The partial threading design allows for clamping force between mating surfaces, which is common in machine component assembly, tooling fixtures, and equipment maintenance work. It is a standard fastener for machinists, millwrights, pipefitters, and maintenance technicians working on heavy equipment or structural assemblies.

Key Features

• 7/8-9 UNC thread for wide compatibility with standard inch-series tapped holes
• 3-1/2 inch length under head supports deep engagement in thick stock
• Partially threaded shank provides controlled clamping force between joined surfaces
• Alloy steel construction meets ASTM A574 for high tensile strength
• Black oxide finish offers moderate corrosion resistance and reduces light reflection
• 3/4 inch hex drive accepts standard hex keys and socket drivers

Compatibility

Designed as a standard inch-series hex socket cap screw for use in any application requiring a 7/8-9 UNC partially threaded fastener conforming to ASME/ANSI B18.3 and ASTM A574.

Installation Notes

Install with a calibrated 3/4 inch hex key or socket driver. Verify that the receiving tapped hole thread class and material grade are compatible with the fastener before installation. Always de-energize, depressurize, or lock out the associated equipment before replacing or installing fasteners in live assemblies. Do not substitute a lower-grade fastener in applications that specify ASTM A574 compliance.