Value Collection W57900PS 5/16-18 X 2 in Flat Head Phillips Screw

Product Description

The VALUE COLLECTION W57900PS is a 5/16-18 x 2-inch flat head Phillips machine screw manufactured from Grade 316 stainless steel with a bright, uncoated finish. It uses unified national coarse (UNC) threading and is measured by overall length (OAL). The flat head profile allows the fastener to sit flush with or below the surface of the mating material when countersunk correctly. Grade 316 stainless steel provides strong corrosion resistance, making this screw suitable for wet, marine, and chemically exposed environments. Installers in mechanical, electrical, plumbing, and HVAC trades use this type of fastener when a flush-mount, corrosion-resistant connection point is required.

This screw is suited for general industrial and trade applications where a 5/16-18 UNC thread form is specified. Typical uses include equipment panel assembly, structural bracketing, pump and motor mounting, and enclosure fabrication in corrosive or high-moisture environments. The Phillips drive allows installation with standard Phillips screwdrivers or power drivers equipped with a PH3 bit. The 2-inch overall length with full-length threading under the head accommodates moderate material stack thicknesses. Minimum order quantity is 10 pieces.

Key Features

• Grade 316 stainless steel construction for superior corrosion and chemical resistance
• 5/16-18 UNC thread form for broad compatibility with standard inch-series tapped holes
• Flat head profile enables flush or countersunk installation in metal, plastic, and composite substrates
• Phillips drive accepts PH3 bits for hand or power tool installation
• Bright, uncoated finish — no plating to crack, flake, or introduce galvanic concerns with stainless hardware
• 2-inch overall length with full thread under head for maximum engagement depth

Compatibility

Designed as a standard inch-series UNC machine screw for use in any pre-tapped or nut-fitted 5/16-18 hole requiring a flush flat head fastener in stainless steel.

Installation Notes

Installation is performed with a PH3 Phillips driver or matching power bit; apply consistent axial pressure to avoid cam-out on the Phillips recess. A properly sized countersink must be prepared in the mating material before driving the flat head flush. When fastening into tapped blind holes, verify thread engagement depth meets structural requirements for the application. Torque to the value specified by the equipment manufacturer or applicable mechanical code for 5/16-18 stainless fasteners.