Value Collection MP33668 Hex Socket Cap Screw 1/2-13 Unc

Product Description

The VALUE COLLECTION MP33668 is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, industrial equipment, and structural connections. Featuring a 1/2-13 UNC thread size and a 3/8-inch hex drive, this screw is partially threaded with a 2-1/2-inch length under head. It is manufactured from alloy steel and finished with a black oxide coating that provides mild corrosion resistance and a uniform matte appearance. This fastener meets ASME/ANSI B18.3 and ASTM A574 standards, making it a reliable choice for machinists, maintenance technicians, and industrial assembly professionals.

This screw is suited for use in general industrial and mechanical applications where a recessed hex drive is required for torque control and flush or low-profile installation. The partial threading provides a smooth shank section that improves shear strength and alignment in bolted connections. It is commonly installed in machine frames, jigs, fixtures, and equipment housings where alloy steel strength ratings are required.

Key Features

• 1/2-13 UNC thread size for broad compatibility with standard UNC tapped holes
• 2-1/2-inch length under head with partial threading for improved shear performance
• 3/8-inch hex socket drive for use with standard hex keys and socket drivers
• Alloy steel construction meets ASTM A574 high-strength requirements
• Black oxide finish provides mild corrosion resistance and reduces light reflection
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as an OEM-style replacement or standard-fit fastener for any application requiring a 1/2-13 UNC partially threaded hex socket cap screw conforming to ASME/ANSI B18.3 and ASTM A574.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using a 3/8-inch hex key or socket driver. Ensure the mating tapped hole is clean and free of debris before installation. Apply appropriate thread lubricant or threadlocker as required by the assembly specification. Do not exceed the rated torque for the fastener grade as specified in ASME standards for 1/2-13 alloy steel cap screws.