Value Collection 1404MST 1/4-20 Truss Head Slotted Machine Screw

Product Description

The Value Collection 1404MST is a 1/4-20 truss head machine screw designed for general fastening applications in mechanical, electrical, and light industrial assemblies. This screw features a slotted drive and a broad, low-profile truss head that distributes clamping load over a wider surface area than a standard pan or round head. It is manufactured from steel with a zinc finish for basic corrosion resistance and meets ASME B18.6.3 and SAE J82 standards. The thread size is 1/4-20 UNC with a length under head of 1/4 inch. Electricians, HVAC technicians, plumbers, and general mechanical tradespeople use this fastener for panel assembly, equipment mounting, and component attachment.

This machine screw is suited for residential and light commercial applications where a slotted truss head fastener is specified. Typical uses include securing electrical enclosure covers, HVAC cabinet panels, junction box hardware, and similar sheet metal or structural assemblies where the wide truss head profile prevents pull-through. Minimum order quantity is 100 pieces per order, sold as a package quantity of 1.

Key Features

• Truss head profile provides a wide bearing surface to reduce pull-through in thin materials
• Slotted drive compatible with standard flat-blade screwdrivers and bit drivers
• 1/4-20 UNC thread for use with standard 1/4-20 nuts, inserts, and tapped holes
• Zinc finish provides basic corrosion protection for indoor and sheltered applications
• Meets ASME B18.6.3 and SAE J82 fastener standards
• Steel construction with Material Grade J82 for consistent tensile and shear performance

Compatibility

Designed as an OEM-style replacement or service fastener for any assembly specifying a 1/4-20 x 1/4 inch truss head slotted machine screw per ASME B18.6.3 or SAE J82.

Installation Notes

Install using a flat-blade screwdriver or slotted bit driver sized to match the screw head slot. Ensure the mating hole is tapped or fitted with a compatible 1/4-20 nut or insert before driving. Do not overtighten, as the slotted drive can cam out and damage the head. Follow applicable NEC or equipment manufacturer torque guidance when used in electrical enclosures or panels.