Marine & Offshore
SS316 marine-grade hardware supplied as standard — not an upgrade — for salt-spray environments and below-deck sealing.
Last updated: 2026-08-15
Rotary Latches for Marine & Offshore Environments
Salt air destroys ordinary door hardware. On deck boxes, cabin doors, engine room panels and offshore equipment enclosures, a latch that seizes or corrodes through is not a maintenance inconvenience — it is a safety and downtime risk. SecuriLock builds rotary latches specifically for continuous salt-air exposure, with corrosion performance verified in our own salt spray laboratory to ASTM B117 / ISO 9227.
What Marine Applications Demand
Corrosion resistance beyond 1,000 hours of neutral salt spray exposure
Positive two-stage engagement that cannot shake open under vibration and wave impact
Smooth operation after months of salt crystal buildup
Gasket compression compatible with IP65 and higher deck-mounted enclosures
Materials and finishes matched to galvanic conditions on aluminum and steel structures
Recommended SecuriLock Models
SL-4003-21 Heavy Duty Damped Manual Drive Rotary Latch — the first choice for deck hatches, storage covers and heavy cabin doors. The damped closing action prevents slamming in rough seas and protects both the seal and hinge alignment.
SL-4001-11 Direct Drive Rotary Lock — compact and robust for engine room access panels and equipment enclosures where space is tight but engagement force matters.
SL-4000-10 Vertical Drive Rotary Lock — drives vertical rods for multi-point latching on tall cabinet doors and offshore electrical enclosures.
SL-4003-11 Manual Drive Rotary Latch — a cost-efficient choice for interior cabin doors, equipment lockers and storage compartments.
Materials and Finishes for Salt Exposure
For marine duty we recommend stainless steel construction, or zinc alloy with our marine-grade electrocoating where weight and cost matter. Every finish batch is verified in-house: neutral salt spray testing per ASTM B117 / ISO 9227 with documented hours, plus coating thickness and adhesion checks. Test reports are available with your shipment.
Custom Marine Projects
We support OEM customization from 50 pieces: special lever lengths, cable routing for remote release, custom striker geometry and project-specific keying. Free STEP/DWG files are available within one business day, and custom samples ship in 20–35 business days. Send us your door drawing — our engineers reply within 24 hours.
