Value Collection 592043PR Hex Socket Cap Screw 3-48 Unc

Product Description

The VALUE COLLECTION 592043PR is a 3-48 UNC hex socket cap screw designed for precision fastening in tight-clearance applications. Fully threaded along its 1/8-inch length under head, it accepts a 5/64-inch hex drive and is machined from 18-8 austenitic stainless steel (Grade A2). That material choice delivers corrosion resistance suitable for wet, humid, or chemically exposed environments. This fastener meets ASME/ANSI B18.3 and ASTM F837 standards. Machinists, millwrights, and maintenance technicians working on small-bore assemblies, instrumentation, or light mechanical components will find it a direct fit for applications where a low-profile, internally driven cap screw is required.

The 592043PR suits residential and commercial applications involving small mechanical assemblies, precision instruments, electronics enclosures, and light-duty machinery. The 3-48 UNC thread is a fine, small-diameter thread class commonly found in instrumentation hardware, OEM equipment, and precision fixtures. Its compact 1/8-inch under-head length keeps hardware profiles low, making it appropriate for shallow-boss or thin-plate installations. Sold in a minimum order quantity of 100 pieces per package, it is well suited for production runs, parts-room restocking, and field repair kits.

Key Features

• 3-48 UNC thread provides reliable engagement in small-bore tapped holes
• Fully threaded 1/8-inch under-head length maximizes thread engagement over the full shank
• 5/64-inch internal hex drive allows use of standard ball-end or straight hex keys in confined spaces
• 18-8 austenitic stainless steel (Grade A2) resists corrosion in wet and humid environments
• Meets ASME/ANSI B18.3 and ASTM F837 dimensional and material standards
• Minimum order quantity of 100 pieces supports production and bulk maintenance use

Compatibility

Designed as a standard 3-48 UNC hex socket cap screw conforming to ASME/ANSI B18.3, this fastener is compatible with any tapped 3-48 UNC threaded hole requiring a 5/64-inch hex drive cap screw with a 1/8-inch under-head length.

Installation Notes

Installation is performed with a 5/64-inch hex key or Allen wrench; a ball-end hex key is recommended when driving at an angle in restricted spaces. Ensure the mating tapped hole is clean and free of debris before driving the screw. Do not over-torque small-diameter fasteners, as 18-8 stainless steel can be prone to galling — consider applying an appropriate anti-seize compound on threads in metal-to-metal contact. Follow applicable mechanical and equipment manufacturer specifications for final torque values.