Value Collection 92591 Flat Head Machine Screw 1/4-20 X 1.5 in

Product Description

The VALUE COLLECTION 92591 is a flat head slotted machine screw designed for general fastening applications across a wide range of industrial, mechanical, and trade settings. Sized at 1/4-20 x 1.5 inches overall length, this screw features a Unified National Coarse (UNC) thread form and a countersunk flat head profile that sits flush with the mating surface when properly installed. Constructed from grade 18-8 stainless steel with no finish coating, it provides reliable corrosion resistance in moderate-exposure environments. Licensed tradespeople and maintenance technicians reach for this fastener when a clean, low-profile installation is required.

This screw is suited for use in residential and light commercial mechanical assemblies, electrical enclosures, HVAC equipment panels, plumbing fixture mounting, and general equipment fabrication. The slotted drive accepts a standard flat-blade screwdriver, making it accessible with common hand tools in the field. The UNC 1/4-20 thread is one of the most widely used coarse-thread standards in North American trade work, offering broad compatibility with tapped holes, nuts, and threaded inserts built to that specification.

Key Features

• 1/4-20 UNC coarse thread for wide compatibility with standard tapped holes and hardware
• 1.5-inch overall length with full 1.5-inch length under head, no washer face
• Flat countersunk head sits flush with surface for a clean, low-profile finish
• Grade 18-8 stainless steel construction provides corrosion resistance without a finish coating
• Slotted drive works with standard flat-blade screwdrivers — no specialty bits required
• Uncoated finish — suitable for applications where coating outgassing or contamination is a concern

Compatibility

Designed as a standard 1/4-20 UNC flat head machine screw suitable for use with any tapped hole, hex nut, or threaded insert conforming to the UNC 1/4-20 thread standard in the inch measurement system.

Installation Notes

Install using a properly sized flat-blade screwdriver to avoid cam-out and head damage. Ensure the mating hole is tapped to 1/4-20 UNC specification or that an appropriate nut is used. For countersunk applications, the receiving material should be chamfered to the correct angle to allow the flat head to seat flush. Minimum order quantity for this SKU is 25 pieces.