Boat Latch / Hasp - Locker Hatch Anti-Rattle Fastener Clamp - 3 5/8" Marine 316 Stainless Steel Precision cast 316 marine grade solid stainless steel. Maximum corrosion resistance and durability in the saltwater environment. Polished to a beautiful, mirror-like finish. Length - 3 5//8" length. Fast shipping from USA.