Value Collection C38203 Machine Screw 1/4-20 X 3 in Ss 18-8 25pk

Product Description

The VALUE COLLECTION C38203 is a 1/4-20 x 3 inch flat head Phillips machine screw manufactured from grade 18-8 stainless steel with a bright, uncoated finish. Designed for use in threaded assemblies requiring a flush or countersunk fastening surface, this screw features unified national coarse (UNC) thread form. The flat head profile seats flush with or below the mating surface when installed in a properly countersunk hole. At 3 inches overall length, it suits deeper material stacks or standoff applications common in mechanical, HVAC panel, and electrical enclosure work. Sold in a pack of 25 units.

This fastener is suited for light industrial, commercial, and residential trade applications where corrosion resistance is required. Grade 18-8 stainless steel provides good resistance to rust and oxidation, making it appropriate for indoor and moderately exposed outdoor environments. HVAC technicians, electricians, and plumbers commonly use this screw type when assembling equipment panels, brackets, junction boxes, and access doors. The Phillips drive accepts standard and power-drive bits, simplifying installation in tight spaces.

Key Features

• 1/4-20 UNC thread form for compatibility with standard tapped holes and hex nuts
• 3 inch overall length suits deeper material stack assemblies
• Flat head profile allows flush or countersunk seating
• Grade 18-8 stainless steel construction resists corrosion and oxidation
• Bright, uncoated finish with no plating to interfere with conductive grounding paths
• Phillips drive accepts standard bits for hand or power installation

Compatibility

Designed as a standard 1/4-20 UNC machine screw for use with any tapped hole, threaded insert, or nut conforming to 1/4-20 unified national coarse thread specifications.

Installation Notes

Installation of machine screws in equipment panels and enclosures should be performed with power off and stored energy discharged per applicable NEC or equipment-specific lockout/tagout procedures. Ensure the receiving hole is properly countersunk to the flat head angle before driving to avoid surface distortion. Use a correctly sized Phillips bit to prevent cam-out and fastener head damage. Do not overtighten into thin sheet metal or plastic standoffs without a backing nut or threaded insert.