Value Collection -33688 Hex Socket Cap Screw 5/8-11 Unc

Product Description

The VALUE COLLECTION -33688 is a partially threaded hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. Sized at 5/8-11 UNC with a 6.5-inch length under the head, this fastener is driven with a 1/2-inch hex key. Constructed from alloy steel with a black oxide finish, it delivers corrosion resistance and reduced light reflection in service environments. It meets ASME/ANSI B18.3 and ASTM A574 standards, making it a recognized choice where load-bearing fastener specifications are required by design or inspection criteria.

This cap screw is suited for use in heavy equipment assembly, machine frames, tooling fixtures, and structural fabrication where a recessed drive and high clamping force are needed. The coarse 5/8-11 UNC thread pitch is well-suited for applications involving softer base materials or where quick assembly and disassembly cycles are anticipated. Machinists, millwrights, and maintenance technicians are the typical installers in both shop and field settings.

Key Features

• 5/8-11 UNC coarse thread for reliable engagement in standard tapped holes
• 6.5-inch length under head accommodates deep grip applications
• Partially threaded shank provides a bearing surface for shear load transfer
• 1/2-inch hex drive for use with standard hex keys or socket-drive adapters
• Alloy steel construction with black oxide coating for strength and corrosion resistance
• Meets ASME/ANSI B18.3 and ASTM A574 standards

Compatibility

Designed as a standard replacement or stocking fastener for any application requiring a 5/8-11 UNC partially threaded hex socket cap screw with a 6.5-inch length under head, conforming to ASME/ANSI B18.3 and ASTM A574 specifications.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a 1/2-inch hex key or appropriately rated socket driver. Ensure the mating tapped hole is clean and free of debris before driving. Apply thread lubricant or thread-locking compound as required by the assembly specification. Tighten to the torque value specified in the engineering drawing or applicable fastener standard for the material and joint configuration.