Value Collection 33675 Hex Socket Cap Screw 1/2-13 Unc

Product Description

The VALUE COLLECTION 33675 is a partially threaded hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. It features a 1/2-13 UNC thread size and a 4-1/2 inch length under head, with a 3/8 inch hex drive socket for installation with a hex key or Allen wrench. The screw is manufactured from alloy steel and finished with a black oxide coating, which provides mild corrosion resistance and reduces light reflection in service environments. It meets ASME/ANSI B18.3 and ASTM A574 standards, confirming compliance with dimensional and mechanical property requirements for socket cap screws.

This fastener is suited for use in machine tool fixtures, jigs, dies, hydraulic assemblies, and general industrial equipment where a recessed drive and strong clamping force are required. The 1/2-13 UNC coarse thread pitch is widely compatible with tapped holes in steel, cast iron, and aluminum components. Black oxide alloy steel socket cap screws of this specification are commonly installed by machinists, millwrights, maintenance technicians, and mechanical contractors across manufacturing and industrial service settings.

Key Features

• 1/2-13 UNC coarse thread for broad compatibility with standard tapped holes
• 4-1/2 inch length under head suits deeper fastening applications
• 3/8 inch hex socket drive for use with standard Allen keys or hex bit drivers
• Partially threaded shank provides a clamping body section above the threaded engagement zone
• Alloy steel construction meets ASTM A574 mechanical property requirements
• Black oxide finish offers mild corrosion resistance and a low-reflectance appearance

Compatibility

Designed as a standard ASME/ANSI B18.3 socket cap screw for use in any application requiring a 1/2-13 UNC partially threaded hex socket fastener in alloy steel with black oxide finish.

Installation Notes

Installation requires a 3/8 inch hex key or Allen-type driver; ensure the driver is fully seated in the socket before applying torque to prevent cam-out or socket damage. Verify that the mating tapped hole meets 1/2-13 UNC thread specification and adequate thread engagement depth before assembly. De-energize, depressurize, or lock out any equipment before fastener replacement on active machinery in accordance with applicable OSHA lockout/tagout procedures. Do not use thread lubricants or anti-seize compounds unless specified by the equipment manufacturer for the application.