Value Collection MP33666 Hex Socket Cap Screw 1/2-13 Unc

Product Description

The VALUE COLLECTION MP33666 is a fully threaded hex socket cap screw designed for fastening applications requiring a secure, recessed-drive connection. Sized at 1/2-13 UNC thread with a 2-inch length under head, this fastener is driven with a 3/8-inch hex key. It is manufactured from alloy steel and finished with a black oxide coating that provides moderate corrosion resistance and reduces light reflection on the fastener head. This screw meets ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for structural and mechanical assemblies across industrial, construction, and maintenance applications.

This cap screw is used in general mechanical and structural fastening where a flush or recessed socket drive is preferred over an external hex head. The fully threaded 1/2-13 UNC configuration suits through-bolt and blind-hole installations in steel frames, machinery bases, brackets, and equipment enclosures. It is commonly installed by millwrights, maintenance technicians, pipefitters, and general contractors working in light to heavy industrial environments.

Key Features

• 1/2-13 UNC thread size for broad compatibility with standard inch-series tapped holes
• 2-inch length under head provides adequate grip range for typical structural connections
• Fully threaded shank maximizes thread engagement in shallow or through-hole applications
• 3/8-inch hex socket drive allows installation with standard Allen keys or hex-bit drivers
• Alloy steel construction meets ASTM A574 for high tensile strength requirements
• Black oxide finish offers mild corrosion resistance and low-glare appearance

Compatibility

Designed as a standard inch-series socket cap screw for use in any application requiring a 1/2-13 UNC threaded fastener with a hex socket drive and 2-inch length under head.

Installation Notes

Installation requires a 3/8-inch hex key or Allen-style bit driver. Ensure the mating tapped hole or nut is clean and free of debris before driving. Apply appropriate thread lubricant or anti-seize compound when required by the application or governing specification. Follow applicable torque guidelines from ASME or equipment manufacturer documentation for 1/2-13 UNC alloy steel fasteners.