Value Collection -33689-1 Hex Socket Cap Screw 5/8-11 Unc

Product Description

The VALUE COLLECTION -33689-1 is a partially threaded hex socket cap screw designed for high-strength fastening in mechanical assemblies, tooling fixtures, and industrial equipment. It features a 5/8-11 UNC thread size and an 8-inch length under head, making it suitable for applications requiring deep grip and controlled clamping force. The alloy steel construction with a black oxide finish provides corrosion resistance and surface hardness. A 1/2-inch hex drive socket is required for installation. This fastener meets ASME/ANSI B18.3 and ASTM A574 standards. It is sold in a pack of 5.

This screw is used in maintenance, repair, and manufacturing operations where a recessed-drive cap screw is specified. The 5/8-11 UNC thread is a coarse-pitch standard widely used in structural and mechanical applications across industrial, commercial, and heavy equipment settings. The 8-inch under-head length suits thick-stock clamping and deep-clearance through-hole installations. Machinists, millwrights, and maintenance technicians are the primary installers.

Key Features

• 5/8-11 UNC coarse thread for broad compatibility with standard tapped holes
• 8-inch length under head for deep-reach and thick-material fastening
• Partially threaded shank provides a bearing surface for precise alignment
• Alloy steel construction rated to ASTM A574 for high tensile strength
• Black oxide finish reduces surface corrosion and minimizes light reflection
• 1/2-inch hex drive socket engagement per ASME/ANSI B18.3

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw for use in any tapped hole or clearance-hole application requiring a 5/8-11 UNC coarse-thread fastener.

Installation Notes

Installation requires a 1/2-inch hex key or socket drive tool. Ensure the mating tapped hole is clean and free of debris before threading. Follow applicable torque specifications from the equipment manufacturer or relevant ASME fastener standards. Do not exceed the rated tensile strength of the fastener by over-torquing.