Value Collection -33680-1 Hex Socket Cap Screw 5/8-11 Unc

Product Description

The VALUE COLLECTION -33680-1 is a fully threaded hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. Built from alloy steel with a black oxide finish, this screw meets ASME/ANSI B18.3 and ASTM A574 standards. It features a 5/8-11 UNC thread size, a 1 inch length under head, and accepts a 1/2 inch hex drive. The black oxide coating provides moderate corrosion resistance and reduces light glare on finished assemblies. Licensed tradespeople and maintenance machinists rely on this cap screw where a flush or recessed socket-drive fastener is required in tight clearance applications.

This cap screw is suited for use in machinery frames, equipment enclosures, fixture plates, and general fabrication work where a hex socket drive is preferred over an external hex head. The 5/8-11 UNC thread form is the standard coarse pitch for 5/8 inch diameter fasteners in inch-based mechanical systems. Fully threaded construction maximizes thread engagement throughout the entire 1 inch grip length, making this screw a practical choice for thinner material stacks and close-tolerance bolt patterns.

Key Features

• 5/8-11 UNC coarse thread for standard inch-series fastening applications
• Fully threaded along the 1 inch length under head for maximum thread engagement
• Alloy steel construction provides high tensile and shear strength
• Black oxide finish offers mild corrosion resistance and a low-reflectance appearance
• 1/2 inch internal hex drive accepts standard hex keys and socket drivers
• Meets ASME/ANSI B18.3 and ASTM A574 fastener standards

Compatibility

Designed as a standard 5/8-11 UNC hex socket cap screw conforming to ASME/ANSI B18.3 and ASTM A574, suitable for use in any application requiring an inch-series coarse-thread socket head cap screw of this diameter and length.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance technicians using a calibrated torque wrench and the appropriate 1/2 inch hex key or socket bit. De-energize and lock out all equipment before fastener service on machinery. Do not reuse fasteners that show thread deformation, galling, or corrosion damage. Apply thread lubricant or anti-seize as required by the assembly specification to achieve accurate clamp load.