Value Collection -33686-1 Hex Socket Cap Screw 5/8-11 Unc

Product Description

The VALUE COLLECTION -33686-1 is a hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and maintenance settings. It features a 5/8-11 UNC thread size with a 3-inch length under head and is partially threaded for secure clamping. The fastener is machined from alloy steel and finished with a black oxide coating that provides moderate corrosion resistance and reduces surface glare. A 1/2-inch hex drive socket is required for installation. This screw meets ASME/ANSI B18.3 and ASTM A574 standards, making it suitable for demanding structural and mechanical assemblies installed by machinists, millwrights, and maintenance technicians.

This socket cap screw is used in general industrial machinery, equipment frames, fixtures, and mechanical assemblies where a high-strength, recessed-drive fastener is required. The partially threaded shank provides a precise bearing surface for close-tolerance applications. Typical installations include machine bases, tooling fixtures, and structural mechanical joints in both light industrial and heavy-duty settings.

Key Features

• 5/8-11 UNC thread for high load-bearing capacity in coarse-thread applications
• 3-inch length under head for adequate thread engagement in thick material
• Partial threading provides a smooth shank section for precision clamping
• Alloy steel construction meets ASTM A574 mechanical requirements
• Black oxide finish offers mild corrosion protection and a low-reflectance surface
• 1/2-inch hex socket drive for use with standard hex keys or socket drivers

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw suitable for use in any application requiring a 5/8-11 UNC coarse-thread alloy steel socket head fastener.

Installation Notes

Installation is performed by machinists, millwrights, or qualified maintenance technicians using a 1/2-inch hex key or socket driver. De-energize and lock out all equipment before fastener installation or removal per applicable OSHA lockout/tagout procedures. Thread holes should be clean and free of debris prior to assembly. Do not exceed the torque specifications defined in the applicable mechanical design standard for the assembly.