M4-M12 304 Stainless Steel Flange Head Bolts | A2-70 Grade with Serrated Washer | 2-30pcs Hex Cap Screw Set
This premium stainless steel flange bolt kit offers superior corrosion resistance and a secure, vibration-proof fastening solution. The integrated serrated washer provides a permanent locking feature,...
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Questions about this product
- Which sizes and quantities can I get?
- Thread sizes run from M4 up to M12, covering light assemblies through heavier machinery work. You can order packs from 2 up to 30 pieces depending on the job. Pick the size and count that matches your build.
- Are these bolts okay for marine or outdoor use?
- Yes. They're A2-70 / 304 stainless steel, which resists rust and mild chemicals well in damp or outdoor settings. The finish is passivated for added protection. That makes them a solid pick for marine and architectural projects.
- Do I still need separate lock washers with these?
- No. The serrated flange is built into the bolt head and acts as a self-locking washer. The teeth bite the surface to resist loosening from vibration, so there's nothing extra to add. That speeds up assembly on machinery and automotive work.
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