Value Collection 011561BR Hex Socket Cap Screw 1-1/4-7 Unc

Product Description

The VALUE COLLECTION 011561BR is a partially threaded hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. It features a 1-1/4-7 UNC thread size with a 4-inch length under the head, and accepts a 7/8-inch hex drive. Constructed from alloy steel with a black oxide finish, this screw delivers solid tensile strength and moderate corrosion resistance in controlled environments. It meets ASME/ANSI B18.3 and ASTM A574 standards, making it a reliable choice for precision-fit applications where dimensional consistency is required.

This cap screw is suited for use in heavy equipment, machine frames, tooling fixtures, and industrial fabrication where a recessed drive head is preferred to keep the fastener flush or below the surface. The coarse 7 UNC thread pitch makes it appropriate for general-purpose steel and alloy material assemblies where fast engagement and removal are priorities. It is commonly installed by machinists, millwrights, and maintenance technicians working in manufacturing or industrial maintenance settings.

Key Features

• 1-1/4-7 UNC coarse thread for strong engagement in steel and alloy assemblies
• 4-inch length under head with partial threading for improved shank strength
• 7/8-inch internal hex drive for high-torque installation with standard Allen or socket tooling
• Alloy steel construction meets ASTM A574 for high mechanical strength
• Black oxide finish provides a low-reflectance surface and mild corrosion resistance
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw for use in applications requiring a 1-1/4-7 UNC coarse-thread fastener with a 4-inch length under head.

Installation Notes

Installation should be performed by qualified machinists or maintenance technicians using a calibrated torque wrench and the correct 7/8-inch hex key or socket tool. Ensure mating threads are clean and free of debris before installation to prevent galling or cross-threading. Follow applicable ASME or equipment manufacturer torque specifications for the fastener grade and joint material. De-energize and lock out all equipment before replacing or installing fasteners in live machinery.