Value Collection 581221PR Hex Socket Cap Screw 6-32 Unc

Product Description

The VALUE COLLECTION 581221PR is a hex socket cap screw designed for demanding fastening applications where controlled torque and a low-profile head are required. The screw features a 6-32 UNC thread size, a 2-1/2 inch length under the head, and a 7/64 inch hex drive. It is manufactured from alloy steel and finished with a black oxide coating, which provides mild corrosion resistance and reduces light reflection. This style of fastener is widely used in mechanical assemblies, jigs, fixtures, tooling, and equipment enclosures. Installation is performed with a standard 7/64 inch hex key or Allen driver.

This screw is suited for applications requiring a partially threaded, high-strength socket cap fastener in a compact 6-32 UNC profile. It is appropriate for both residential and commercial maintenance, manufacturing, and fabrication environments. The black oxide finish makes it common in machine tool, electronics enclosure, and precision instrument assemblies where a non-reflective appearance is preferred alongside strength. Trade professionals including millwrights, pipefitters, electricians, and general mechanics frequently use this fastener type during equipment assembly and service work.

Key Features

• 6-32 UNC thread size for use in standard machine screw tapped holes
• 2-1/2 inch length under head for deeper grip in thicker assemblies
• Partially threaded shank provides shear strength in through-bolt applications
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM A574 standards
• Black oxide finish offers mild corrosion resistance and non-reflective appearance
• 7/64 inch hex socket drive for secure torque application with a standard hex key

Compatibility

Designed as a standard replacement or stock fastener for any application requiring a 6-32 UNC partially threaded hex socket cap screw with a 2-1/2 inch length under head.

Installation Notes

Installation requires a 7/64 inch hex key or Allen driver. Power down and de-energize any equipment before replacing or installing fasteners in electrical or mechanical assemblies. Do not overtorque alloy steel socket cap screws in aluminum or plastic tapped holes, as thread stripping can occur. Follow applicable equipment manufacturer torque guidelines or consult ASME B18.3 reference tables for recommended values by thread size and material class.