Value Collection A997258 Truss Head Phillips Machine Screw 100pk

Product Description

The VALUE COLLECTION A997258 is a stainless steel machine screw in the common 1/4-20 UNC thread size with a 5/8-inch length measured under the head. The truss head profile offers a wide, low-profile bearing surface that distributes clamping load across a larger area than a standard pan or round head. The Phillips drive is compatible with standard hand and power tools. Constructed from 18-8 stainless steel with a bright, uncoated finish, this fastener resists corrosion in wet or chemically active environments. Supplied in a pack of 100, these screws are suited to production assembly, maintenance repair, and field service work.

This screw is appropriate for general-purpose mechanical assembly in HVAC equipment panels, electrical enclosures, plumbing access covers, and pool equipment housings. The 1/4-20 UNC thread is one of the most widely used coarse-thread sizes in North American trade applications, making this fastener easy to source matching hardware for. The 18-8 stainless grade is acceptable for indoor and outdoor installations where mild to moderate corrosion resistance is required.

Key Features

• 1/4-20 UNC coarse thread for broad hardware compatibility
• 5/8-inch length under head suits thin to medium panel stock
• Truss head provides wide bearing surface and low-profile appearance
• Phillips drive works with standard bits and power drivers
• 18-8 stainless steel construction resists rust and corrosion
• Bright, uncoated finish — no plating to chip or flake
• Pack of 100 supports production-volume and service-stock needs

Compatibility

General-purpose 1/4-20 UNC machine screw suitable as an OEM-style replacement or service fastener in equipment that calls for a truss head Phillips screw in this thread and length.

Installation Notes

Installation requires a standard Phillips screwdriver or a Phillips-bit power driver. Verify that the mating component uses 1/4-20 UNC threads or a properly sized insert before driving. De-energize all electrical equipment and relieve system pressure before accessing any panel or enclosure secured by these fasteners. Do not overtighten stainless fasteners into aluminum or soft alloy — stainless can gall; apply a suitable anti-seize compound if the application demands repeated removal.