Value Collection 33671 Hex Socket Cap Screw 1/2-13 Unc

Product Description

The VALUE COLLECTION 33671 is a hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. Manufactured from alloy steel with a black oxide coating, this screw provides corrosion resistance and a clean, low-reflectance finish suited for precision work. It features a 1/2-13 UNC thread size, a 3-1/4 inch length under head, and is partially threaded. The 3/8 inch hex drive is sized for standard hex keys and socket drivers. This fastener meets ASME/ANSI B18.3 and ASTM A574 standards, confirming it is manufactured to recognized dimensional and mechanical property requirements.

This socket cap screw is suited for use in machinery, equipment frames, fixture assemblies, and other applications where a recessed drive head and high tensile strength are required. The partially threaded shank allows for firm clamping force between mating surfaces without thread engagement through the full grip length. Typical installation environments include manufacturing floor equipment, hydraulic and pneumatic assemblies, tooling fixtures, and general mechanical structures requiring UNC fasteners.

Key Features

• 1/2-13 UNC thread size for broad compatibility with standard inch-series tapped holes
• 3-1/4 inch length under head with partial threading for optimized clamp load
• Alloy steel construction for high tensile strength and durability
• Black oxide finish provides mild corrosion resistance and reduces surface reflectivity
• 3/8 inch hex socket drive compatible with standard hex keys and socket tools
• Meets ASME/ANSI B18.3 and ASTM A574 standards for dimensional and mechanical compliance

Compatibility

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

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance technicians using a 3/8 inch hex key or socket driver. Ensure mating tapped holes are clean and free of debris before installation. Apply appropriate torque per the applicable equipment specification or engineering drawing. Do not overtorque, as alloy steel fasteners seated in softer base materials can strip threads or cause joint distortion.