Value Collection -33716-1 Hex Socket Cap Screw 1-8 Unc

Product Description

The VALUE COLLECTION -33716-1 is a partially threaded hex socket cap screw designed for high-strength fastening applications in mechanical, industrial, and trade assembly work. It features a 1-8 UNC thread size, a 4-1/2 inch length under head, and a 3/4 inch hex drive. Constructed from alloy steel with a black oxide coating, it resists corrosion and surface wear under demanding service conditions. This screw meets ASME/ANSI B18.3 and ASTM A574 standards, making it appropriate for use in structural and mechanical assemblies where fastener integrity is critical. Machinists, millwrights, and maintenance technicians are the typical installers.

This socket cap screw is suited for use in heavy-duty mechanical assemblies, fixture work, machinery mounting, and structural fastening where a recessed drive and high tensile strength are required. The partial threading allows for a smooth shank section, which is useful in applications requiring precise alignment or clamping without thread engagement along the full fastener length. It is sold individually with a minimum order quantity of 5 pieces.

Key Features

• 1-8 UNC thread for compatibility with standard coarse-thread tapped holes
• 4-1/2 inch length under head with partial threading for alignment-critical installations
• 3/4 inch hex socket drive for use with standard hex keys or socket drivers
• Alloy steel construction meets ASTM A574 high-strength fastener 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 and replacement fastener for any application requiring a 1-8 UNC partially threaded hex socket cap screw per ASME/ANSI B18.3 dimensional specifications.

Installation Notes

Installation should be performed by a qualified machinist, millwright, or maintenance technician using a properly sized 3/4 inch hex key or socket driver. Ensure the mating tapped hole is clean and free of debris before installation. Always verify thread engagement depth meets the requirements of the assembly design. Do not exceed recommended torque values as defined by the fastener grade and application engineering specifications.