Value Collection -33713-1 Hex Socket Cap Screw 1-8 Unc

Product Description

The VALUE COLLECTION -33713-1 is a fully threaded hex socket cap screw engineered for high-strength fastening applications in mechanical assemblies, fixtures, and structural components. It carries a 1-8 UNC thread size with a 3-inch length under head, and is driven with a 3/4-inch hex socket. Constructed from alloy steel and finished with a black oxide coating, this fastener delivers strong tensile performance along with modest corrosion resistance in controlled environments. It conforms to ASME/ANSI B18.3 and ASTM A574 standards, making it a recognized choice for precision fastening work across manufacturing, maintenance, and fabrication trades.

This socket cap screw is suited for applications where a low-profile, high-clamp-force fastener is required and clearance is limited for wrenching. Common use cases include machine tool fixturing, industrial equipment assembly, structural steel connections, and close-tolerance mechanical builds. Its fully threaded body maximizes thread engagement across the full grip length, which is especially useful in shallow tapped holes or thin-material joints. This fastener is sold in a minimum order quantity of 10 pieces.

Key Features

• 1-8 UNC thread form for standard coarse-thread engagement
• 3-inch length under head with full threading along the entire shank
• 3/4-inch hex socket drive for high-torque installation with standard Allen or hex socket tooling
• Alloy steel construction meets ASTM A574 high-strength socket screw requirements
• Black oxide finish provides mild corrosion resistance and reduces light reflection in precision assemblies
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a direct-fit replacement or standard-stock fastener for applications requiring a 1-8 UNC fully threaded hex socket cap screw per ASME/ANSI B18.3 and ASTM A574 specifications.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance mechanics using a calibrated hex socket or Allen-type driver sized to 3/4 inch. Ensure the tapped hole is clean and free of debris before threading to avoid galling the alloy steel threads. De-energize or lock out all equipment per applicable safety procedures before installing or removing fasteners in live machinery. Do not exceed the torque rating specified in the applicable engineering documentation for this thread size and material grade.