Rustproof Twist Button Fasteners

A 20-set pack of corrosion-resistant twist lock fasteners built for longevity in harsh environments. Components: metal turn-button head, threaded stud, stainless steel screw (M4), and 12 mm stainless washer. Overall dimensions: button diameter 12 mm, stud length 8 mm, screw length 10 mm; total kit mass ~180 g. Manufactured using non-rusting base metals and passivated stainless hardware, these fasteners retain function and appearance after prolonged exposure to sea air, rain, or chemical cleaning agents. The locking mechanism relies solely on mechanical threading — no adhesives, plastics, or elastomers that degrade under UV or temperature extremes. Ideal for sailboat dodger installations, patio canopy tensioning, livestock trailer tarps, and industrial curtain walls — particularly where maintenance access is limited and replacement infrequent.