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The EPCO #8 x 1-1/8 inch truss head machine screw is a zinc-plated, coarse-thread fastener with a Phillips drive and a broad, low-profile head designed to distribute clamping load across a wide bearing surface. It is sized for hardware mounting, panel assembly, and other interior fastening tasks where a flush-sitting head with maximum surface contact is the right call.
The truss head is the right choice when a standard pan or flat head would either pull through the material or leave too small a footprint at the fastening point. The extra-wide flange spreads clamping load over a larger area, making this screw a natural fit for panel mounting, hardware backing plates, wire management clips, and light fixture attachment inside cabinet interiors. The 1-1/8 inch length gives enough thread engagement for typical panel thicknesses without over-penetrating thinner stock. Because this is a machine screw, it threads into pre-tapped holes or pairs with a nut for through-bolted connections rather than cutting its own threads in wood like a wood screw would.
The zinc plating on this screw provides galvanic protection in dry, indoor conditions. It is the standard finish for general interior shop and cabinet work where moisture is not a factor. The steel construction handles the torque of a #2 Phillips driver without head distortion under normal installation loads. This screw is for indoor use; if the application involves outdoor exposure or contact with pressure-treated lumber, a coated or hot-dip galvanized fastener is the better choice.
Cabinet shops use the truss head machine screw when attaching hardware components to cabinet interiors where a wide bearing surface matters more than a countersunk flush finish. Installers reach for it when mounting clips, brackets, or light hardware to panel surfaces. The coarse thread and sharp point make it straightforward to run with a standard cordless driver, and the Phillips drive means no specialty bits are needed. It is a utility fastener that earns its place in the shop bin by handling repetitive mounting tasks cleanly and consistently.
A truss head has a wider, flatter profile than a pan head, giving it a larger bearing surface and lower overall height above the material. That wider footprint helps resist pull-through in softer or thinner panel materials.
The sharp point allows self-starting in softer materials, but because this is a machine screw it is designed to thread into a pre-tapped hole or pair with a nut rather than cut its own path through dense wood or metal the way a wood screw would.
The zinc plating on this screw is rated for dry indoor conditions. It is not the right choice for outdoor exposure, high-humidity environments, or applications involving pressure-treated lumber.
A standard #2 Phillips bit fits this screw. That is one of the most common bits in any shop or installer's kit, so no specialty tooling is needed.
When the job calls for a wide-bearing, low-profile machine screw that installs with a #2 Phillips bit and handles routine hardware mounting without fuss, the EPCO SC-302 is the straightforward answer.
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