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Standard pan head screws can pull through thin panels, crack soft materials, or leave unsightly marks on finished surfaces. When you need a fastener that distributes clamping force over a wider area without adding bulk, a truss head is the right choice — and most hardware stores don't stock them in stainless steel across multiple sizes.
These Phillips truss head machine screws are precision-formed from 304 stainless steel, offering excellent corrosion resistance, oxidation resistance, and high tensile strength. Available in four thread diameters — M4, M5, M6, and M8 — with lengths from 5mm to 100mm (0.20–3.94 in / ~3/16 to 3-15/16 in). Pack quantities of 1, 10, 50, or 100 pieces let you order exactly what your project requires.
Ideal for furniture assembly, electronics enclosures, HVAC panels, automotive trim, sheet metal fabrication, industrial machinery, and general DIY applications where a low-profile, wide-bearing stainless fastener is needed.
| Material | 304 Stainless Steel (A2 equivalent) |
|---|---|
| Type | Truss Head (Large Flat Head) Machine Screw — Phillips drive |
| Available Thread Sizes | M4, M5, M6, M8 |
| Available Lengths | M4: 5–80mm · M5: 6–80mm · M6: 8–100mm · M8: 16–60mm |
| Length Range (Imperial) | Approximately 0.20–3.94 in (~3/16 to 3-15/16 in) |
| Drive Style | Phillips (cross) — #2 or #3 |
| Head Style | Truss Head (wide, low-profile, large bearing surface) |
| Thread Standard | ISO metric (international standard) |
| Surface Treatment | Natural stainless finish (untreated) |
| Pack Quantities | 1 / 10 / 50 / 100 pcs |
| Typical Applications | Furniture, electronics enclosures, HVAC panels, automotive trim, sheet metal, industrial machinery, DIY projects |
These screws are made from 304 stainless steel, which provides excellent corrosion resistance, oxidation resistance, high strength, and good toughness. 304 SS is suitable for indoor and outdoor applications where rust resistance is required.
Available thread sizes are M4, M5, M6, and M8. Each size is offered in multiple lengths ranging from 5mm to 100mm (approximately 0.20 to 3.94 inches), depending on the diameter selected.
Truss head screws have a wider, lower-profile head than standard pan head screws, providing a larger bearing surface. This makes them ideal for applications where you need to distribute clamping force over a wider area, such as thin sheet metal, plastic panels, or soft materials that could be damaged by a smaller head.
These screws use a Phillips (cross) drive. A standard #2 Phillips screwdriver is typically used for M4 and M5, while M6 and M8 may require a #3 Phillips driver. Use a properly sized driver to avoid cam-out and head damage.
Yes. 304 stainless steel offers good corrosion resistance in most outdoor environments. However, for highly corrosive environments such as coastal or marine settings with constant saltwater exposure, 316 stainless steel is generally recommended.
The listed length is the shank length, not including the head. As a general rule, the screw should engage at least 1.5x the thread diameter into the receiving material. For example, an M6 screw should typically engage at least 9mm into the base material for a secure hold.
These screws are widely used in furniture assembly, electronics enclosures, HVAC equipment, automotive trim, industrial machinery, and general DIY projects where a low-profile, wide-bearing fastener is needed.
Choose 1 pcs for testing fit or single-use repairs. Select 10 pcs for small projects. Choose 50 or 100 pcs for production runs, maintenance stock, or larger assembly jobs — bulk packs offer better per-unit value.
