Value Collection -33714-1 Hex Socket Cap Screw 1-8 Unc

Product Description

The VALUE COLLECTION -33714-1 is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, machinery, and structural connections. It features a 1-8 UNC thread size and a 3.5-inch length under head with partial threading, allowing for reliable clamp load in through-hole and tapped-hole applications. The screw is driven with a 3/4-inch hex socket and is manufactured from alloy steel with a black oxide coating for corrosion resistance and reduced light reflection. Installation is performed by machinists, millwrights, and maintenance technicians working to ASME/ANSI B18.3 and ASTM A574 standards.

This screw suits general industrial and mechanical applications where a high-tensile socket head cap screw is required. The 1-8 UNC coarse thread pitch is well suited for use in steel and iron tapped holes, providing strong thread engagement and ease of assembly. The partial threading allows the unthreaded shank to act as a locating feature or to span clearance holes cleanly. It is commonly installed in fixtures, tooling, presses, conveyor systems, and fabricated steel structures.

Key Features

• 1-8 UNC coarse thread for strong engagement in ferrous and non-ferrous tapped holes
• 3.5-inch length under head with partial threading for shank-clearance and locating applications
• 3/4-inch hex 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 a low-reflectance surface
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as an OEM-style replacement or direct-fit fastener for applications requiring a 1-8 UNC 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 calibrated torque wrench and the appropriate 3/4-inch hex key or socket driver. Ensure the tapped hole is clean and free of debris before threading the fastener. Do not exceed the recommended seating torque for the base material, and do not use impact tools unless the joint design specifically allows for it. Follow applicable facility maintenance codes and equipment manufacturer guidelines when installing fasteners in load-bearing or safety-critical assemblies.