Value Collection 92586 1/4-20 X 1/2 in Flat Head Machine Screw

Product Description

The VALUE COLLECTION 92586 is a 1/4-20 x 1/2 inch overall length flat head slotted machine screw manufactured from 18-8 stainless steel with a bright uncoated finish. This screw follows Unified National Coarse (UNC) thread standards and is sized for applications where a flush or countersunk fastening profile is required. The flat head geometry allows the fastener to sit flush with or below the mating surface when installed in a properly countersunk hole. The 18-8 stainless steel construction provides corrosion resistance suitable for general-purpose industrial, mechanical, and maintenance applications. Electricians, HVAC technicians, plumbers, and general maintenance trades commonly use fasteners of this type for panel assembly, equipment mounting, and fixture attachment.

This machine screw is suited for light-duty fastening tasks across residential and commercial service work. Typical applications include securing electrical enclosure covers, attaching brackets, and fastening hardware components where a low-profile head is needed. The 1/4-20 UNC thread is one of the most widely used coarse thread standards in North American trade work, making this screw compatible with a broad range of tapped holes, hex nuts, and threaded inserts of the same specification. The slotted drive accepts a standard flat-blade screwdriver, keeping installation straightforward without requiring specialty tooling.

Key Features

• 1/4-20 UNC coarse thread for broad compatibility with standard tapped hardware
• Flat head profile seats flush or countersunk into mating surfaces
• Slotted drive accommodates standard flat-blade screwdrivers
• 18-8 stainless steel construction resists corrosion in general service environments
• Bright uncoated finish with no plating that could interfere with electrical grounding contact
• Overall length and length under head both measure 1/2 inch

Compatibility

Designed for use in any application requiring a 1/4-20 UNC flat head slotted machine screw with a 1/2 inch overall length. Compatible with standard 1/4-20 tapped holes, hex nuts, and threaded inserts conforming to UNC inch-series thread standards.

Installation Notes

Install using a flat-blade screwdriver sized to fit the slotted drive without slipping, as an ill-fitting driver can damage the slot or cam out under torque. When used in countersunk applications, verify the mating material is properly countersunk to the correct angle to achieve full flush seating. For electrical panel or enclosure use, follow applicable NEC requirements for fastener material and grounding continuity. De-energize any electrical equipment before accessing internal hardware.