Value Collection W57911PS 3/8-16 X 1 in Flat Head Machine Screw

Product Description

The VALUE COLLECTION W57911PS is a 3/8-16 flat head Phillips machine screw manufactured from Grade 316 stainless steel with a bright, uncoated finish. It measures 1 inch in overall length with a 1-inch length under the head, and uses Unified National Coarse (UNC) thread form. The flat head profile seats flush with the mating surface when installed in a countersunk hole. Grade 316 stainless steel provides elevated corrosion resistance compared to Grade 304, making this fastener well suited for wet, marine, or chemically exposed environments. Installers in mechanical, HVAC, plumbing, and electrical trades use this screw type wherever a flush-mount, corrosion-resistant fastener is required.

This machine screw is used in light to medium structural and mechanical assemblies where a countersunk, flush-seating fastener is specified. Typical applications include panel mounting, equipment enclosures, and fixture attachment in environments subject to moisture or chemical exposure. The Phillips drive is compatible with standard No. 3 Phillips bits and screwdrivers. Minimum order quantity is 10 pieces; the package ships as a quantity of 1.

Key Features

• Grade 316 stainless steel construction for superior corrosion resistance in wet and marine environments
• Flat head profile for flush countersunk installation
• Phillips drive accepts standard No. 3 Phillips bits
• UNC thread form (3/8-16) for broad compatibility with standard tapped holes and nuts
• Bright, uncoated finish — no plating to degrade in harsh service conditions
• 1 inch overall length with full 1 inch length under the head

Compatibility

Designed as a standard 3/8-16 UNC machine screw for use in any application requiring a flat head Phillips fastener with a 3/8-16 thread and 1 inch overall length.

Installation Notes

Installation should be performed by a qualified mechanic or trades professional using a No. 3 Phillips screwdriver or bit rated for the applied torque. Always verify the receiving hole is properly countersunk to the correct angle before driving the screw flush. Do not overtighten stainless steel fasteners, as the material is susceptible to galling — apply a compatible anti-seize compound when torquing into stainless or aluminum tapped holes. Follow applicable mechanical codes and equipment manufacturer specifications for fastener torque and hole preparation.