Value Collection -33688-1 Hex Socket Cap Screw 5/8-11 Unc

Product Description

The VALUE COLLECTION -33688-1 is a hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. It features a 5/8-11 UNC thread size with a 7-inch length under the head and is partially threaded for secure clamping in deep through-hole or tapped applications. The 1/2-inch hex drive allows for high-torque installation with standard Allen or hex key tooling. Constructed from alloy steel with a black oxide finish, this cap screw offers solid mechanical strength and moderate corrosion resistance in dry or lightly oiled environments. Sold in a pack of 5.

This screw is suited for use in fabrication shops, maintenance and repair operations, heavy equipment assembly, and industrial machinery builds. The 5/8-11 UNC coarse thread pattern is a common standard in North American manufacturing, making this fastener a straightforward replacement or stock item for facilities maintaining metric and unified inch fastener inventories. Typical installers include millwrights, machinists, and maintenance mechanics working to ASME/ANSI B18.3 and ASTM A574 specifications.

Key Features

• 5/8-11 UNC coarse thread for compatibility with standard unified inch tapped holes
• 7-inch length under head for deep-reach fastening in thick workpieces or structural members
• Partially threaded shank provides a bearing surface for precise clamping and shear loading
• 1/2-inch hex socket drive for high-torque installation with Allen keys or hex bit drivers
• Alloy steel construction meets ASTM A574 mechanical property requirements
• Black oxide finish provides mild corrosion resistance and reduces galling during installation

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw for use in any application requiring a 5/8-11 UNC partially threaded fastener with a 7-inch length under head.

Installation Notes

Installation should be performed by a qualified mechanic or machinist using a calibrated torque wrench and appropriate 1/2-inch hex bit or Allen key. Verify that the mating tapped hole meets 5/8-11 UNC thread specifications before installation. Apply a thread lubricant or anti-seize compound as required by the application to achieve accurate torque values. Inspect threads for damage before installation and do not install in corroded or damaged tapped holes.