316 Stainless Marine Door Hinges 25×100mm — Polished

316 SUS Marine Grade Flush Door Hinge (25×100mm) Polished 316 stainless steel flush hinge (25×100mm) — heavy-duty, corrosion-resistant hinge for boat doors, hatches and compartments. Product Description Material: 316 marine-grade stainless steel — excellent resistance to saltwater corrosion and long service life. Flush, heavy-duty design (25 × 100 mm, 4.5 mm thick) gives a sturdy installation with minimal lateral play; ideal for cabin doors, lockers, lids and small hatches. Polished finish for a clean yacht look and easier maintenance; pairs well with other polished 316 hardware. Low profile, 2-hole strap butt hinge — designed for door-mount (flush) installation and direct replacement of common 4″ × 1″ marine hinges. Why choose this hinge: corrosion resistance, dimensional stability in marine environments, and a solid, low-wiggle joint for frequent use areas on boats and RVs. Technical parameters Model Size A B C D E H WT SMHH409 25*100mm 101.5mm 26mm 31mm 27mm 5.5mm 4.5mm 72g   Typical applications Cabin doors, toilet/galley doors and locker lids on yachts and small boats. Small hatches, storage compartments, RV/van interiors and outdoor marine lockers. How to use / install Confirm door and frame cutout fits the 25×100 mm hinge footprint. Pre-drill pilot holes (use recommended #10/#12 screws depending on laminate or solid wood backing). Fit hinge flush on door and frame, fasten with marine-grade 316 screws (or stainless fasteners with compatible corrosion rating). Check alignment, then tighten progressively to avoid binding. FAQ Q: Is this hinge suitable for exposed exterior mounting?A: Yes — made from 316 marine stainless steel, it resists pitting and crevice corrosion in saltwater environments; suitable for exposed and semi-exposed installations. Q: Will it fit standard 4″×1″ replacement holes?A: Yes — the 25×100 mm size corresponds to common 4″×1″ marine hinges; verify hole spacing (A/B dimensions) against your existing hinge before ordering. Q: What fasteners should I use?A: Use marine-grade 316 stainless screws or compatible fasteners and sealants to avoid galvanic corrosion and ensure a durable installation. Q: How to reduce hinge wiggle over time?A: Ensure proper mounting surface (solid backing), use correct screw length, and periodically inspect/tighten screws; replace worn pins if necessary.