Value Collection 581261PR Hex Socket Cap Screw 8-32 Unc

Product Description

The VALUE COLLECTION 581261PR is an alloy steel hex socket cap screw designed for secure, high-strength fastening in mechanical and structural assemblies. It features an 8-32 UNC thread and measures 2.5 inches in length under the head. The 9/64-inch hex socket drive allows for precise torque application using a standard hex key or Allen wrench. A black oxide coating provides moderate corrosion resistance and reduces light glare in finished assemblies. This fastener is partially threaded, which is typical for cap screws of this length, and meets ASME/ANSI B18.3 and ASTM A574 standards. It is installed by machinists, millwrights, equipment technicians, and maintenance professionals across industrial and commercial applications.

This cap screw is suited for use in machine components, fixture assemblies, jigs, tooling plates, and general mechanical hardware applications where a recessed-drive, high-strength fastener is required. The 8-32 UNC thread is a fine-pitch unified coarse designation commonly found in light machinery, panel hardware, and instrumentation enclosures. Alloy steel construction with black oxide finish makes it appropriate for interior mechanical environments where dimensional precision and clamping strength are priorities.

Key Features

• 8-32 UNC thread for compatibility with standard tapped holes in light mechanical assemblies
• 2.5 inches length under head with partial threading, providing a grip length suited to fastening thicker material stacks
• 9/64-inch hex socket drive for precise torque application with Allen keys or socket tools
• Alloy steel construction meets ASTM A574 for high tensile strength fastener requirements
• Black oxide coating provides mild corrosion resistance and a non-reflective finish
• Conforms to ASME/ANSI B18.3 dimensional standards for interchangeability and consistency

Compatibility

Designed as an OEM-style replacement or standard-service fastener for any application requiring an 8-32 UNC partially threaded hex socket cap screw at 2.5 inches length under head, conforming to ASME/ANSI B18.3 and ASTM A574 specifications.

Installation Notes

Installation is performed using a 9/64-inch hex key or Allen driver. Ensure the mating tapped hole is clean and free of debris before driving. Apply thread locker if vibration resistance is required in the application. Follow applicable torque specifications for 8-32 alloy steel fasteners as referenced in ASME or equipment manufacturer guidelines.