Value Collection 33672 Hex Socket Cap Screw 1/2-13 Unc

Product Description

The VALUE COLLECTION 33672 is a partially threaded hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and trade environments. Sized at 1/2-13 UNC with a 3-1/2 inch length under head, this screw accepts a 3/8 inch hex drive and is manufactured from alloy steel with a black oxide finish for corrosion resistance. It conforms to ASME/ANSI B18.3 and ASTM A574 standards, making it a reliable choice for structural and mechanical assemblies where torque and tensile strength requirements are well-defined.

This cap screw is suited for general industrial fastening, machinery assembly, and maintenance applications where a recessed hex drive is preferred for torque access in tight clearances. The partial threading allows for a smooth shank section under the head, which is standard practice for applications requiring precise load transfer and shear resistance. Installers working in fabrication shops, mechanical rooms, or field service environments will find this screw applicable across a wide range of bolted joint configurations.

Key Features

• 1/2-13 UNC thread size for common imperial fastening applications
• 3-1/2 inch length under head with partial threading for shear-load suitability
• 3/8 inch hex socket drive for use with standard hex keys or socket drivers
• Alloy steel construction meets ASTM A574 high-strength requirements
• Black oxide coating provides mild corrosion resistance and reduces light reflection
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a standard 1/2-13 UNC hex socket cap screw per ASME/ANSI B18.3, suitable for use in any application requiring an ASTM A574 alloy steel socket head cap screw of this thread and length specification.

Installation Notes

Installation should be performed by a qualified mechanic or tradesperson using a properly sized 3/8 inch hex key or socket driver. Ensure the mating threaded hole or nut is clean and free of debris before fastening. Follow engineered joint specifications for torque values, as alloy steel cap screws at this diameter carry specific torque requirements that must be sourced from the applicable design standard or engineer of record. Do not substitute this fastener in safety-critical applications without verifying conformance to the applicable ASTM and ASME specifications.