Phillips modified truss head self drilling
Self drilling screws have a drill bit point. Phillips drive is x-shaped for installation with a phillips screw driver.
- Stainless steel 410
A stainless alloy that is harder than 18-8 stainless steel, but not as resistant to corrosion.
- Zinc plated steel
Heat treated for adequate strength. Zinc plated for moderate corrosion resistance.
- Steel black phosphate finish
Heat treated for adequate strength.
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