Value Collection MS51958-121 0-80 Pan Head Machine Screw

Product Description

The VALUE COLLECTION MS51958-121 is a 0-80 pan head machine screw designed for precision fastening applications requiring a fine thread and compact form factor. Built to MS51958 military fastener standards, this screw features a Phillips drive and is manufactured from 18-8 stainless steel with a black oxide finish. The length under head measures 3/16 inches, making it suited for thin-material assemblies and tight-clearance installations. It installs without a washer and is measured by length under head per standard inch fastener convention. Electricians, instrument technicians, and assemblers working with electronics enclosures, panel components, or precision equipment are the typical installers.

This screw is appropriate for light-duty mechanical and electrical assembly work where a small-diameter, fine-thread fastener is required. The 0-80 thread designation is the finest commonly available inch-series thread, used in instrument panels, PCB mounting hardware, small enclosure covers, and similar assemblies. The black oxide finish provides mild corrosion resistance while maintaining close dimensional tolerances. This SKU is sold individually but carries a minimum order quantity of 100 pieces, reflecting typical usage in production or service-kit quantities.

Key Features

• 0-80 thread size — finest standard inch-series thread for precision fastening
• 3/16 inch length under head for thin-material and tight-clearance assemblies
• 18-8 stainless steel construction for corrosion resistance and durability
• Black oxide finish for mild surface protection and low-reflectance appearance
• Phillips drive for compatibility with standard screwdrivers and bit sets
• Manufactured to MS51958 military fastener standard

Compatibility

Designed as an OEM-style replacement or production fastener for applications requiring an MS51958-standard 0-80 pan head machine screw in inch-series assemblies.

Installation Notes

Install using a correctly sized Phillips bit to avoid cam-out on the small-diameter head. Power down any electrical panel or instrument assembly before replacing or installing fasteners in live enclosures, per applicable NEC requirements. At the 0-80 thread size, hand-start the screw carefully to avoid cross-threading in tapped holes. Do not overtighten — small-diameter machine screws are susceptible to thread stripping and head shear at excessive torque.