Value Collection 592189PR Hex Socket Cap Screw 8-36 Unf

Product Description

The VALUE COLLECTION 592189PR is a hex socket cap screw designed for applications requiring a compact, recessed-drive fastener with precise thread engagement. Built to ASME/ANSI B18.3 and ASTM F837 standards, this screw features an 8-36 UNF thread and is fully threaded along its 3/4-inch length under head. The 9/64-inch hex drive accepts a standard Allen-style key or hex bit. Constructed from 18-8 austenitic stainless steel (Material Grade A2), it offers solid corrosion resistance in moderate service environments. This fastener is used by machinists, millwrights, electricians, and HVAC technicians in panel assembly, equipment mounting, and precision mechanical work.

The 592189PR suits applications where a low-profile socket head and fine unified thread pitch are required. The 8-36 UNF designation provides finer thread pitch than the standard 8-32 UNC, making it appropriate for thin-material assemblies or applications that benefit from increased thread engagement and reduced vibration loosening. Typical install scenarios include instrument panels, motor assemblies, control enclosures, and light-duty structural joints where stainless steel corrosion resistance is a specification requirement.

Key Features

• 8-36 UNF thread for fine-pitch engagement and vibration resistance
• Fully threaded 3/4-inch length under head maximizes thread contact in thin stock
• 9/64-inch hex socket drive accepts standard Allen keys and hex bit drivers
• 18-8 austenitic stainless steel, Material Grade A2, for corrosion resistance
• Meets ASME/ANSI B18.3 and ASTM F837 fastener standards

Compatibility

Designed as an OEM-style replacement or direct-use hex socket cap screw for applications specifying 8-36 UNF thread size, 3/4-inch length under head, and 18-8 stainless steel construction per ASME/ANSI B18.3 and ASTM F837.

Installation Notes

Install using a calibrated 9/64-inch hex key or hex bit driver. Power down or de-energize any electrical or mechanical equipment before fastening into live assemblies. Avoid overtightening stainless steel fasteners, as 18-8 alloy is susceptible to galling — apply an appropriate anti-seize compound when threading into stainless or aluminum tapped holes. Follow applicable equipment manufacturer torque guidelines and relevant ASME or ASTM specifications for your application.