Product Overview
Stainless Steel 316 Quick Release Buckle for Chain – Model ZB7102 Series RICHWITS ZB7102 delivers a marine-grade, tool-free chain connector engineered for harsh marine environments, industrial rigging, and heavy-duty outdoor applications. Precision investment-cast from 316 stainless steel, then CNC-machined and electropolished for lifetime corrosion resistance against saltwater, chemicals, and extreme weather. Quick-release pin mechanism: insert chain link, snap pin—no tools, instant securement, instant release. Three sizes (6–12 mm chain diameter) accommodate standard anchor and lifting chains; 85–210 g weight delivers 500–1500 kgf working load capacity—ideal for marine anchoring, industrial hoisting, petrochemical rigging, or rescue operations.
Key Features & Benefits316 SS Investment-Cast Body – zero welds, zero corrosion, zero failure in saltwater immersion. Quick-Release Pin Mechanism – insert chain, snap pin—no tools, 2-second operation; emergency release under load. Spring-Loaded Safety Latch – auto-locking pin prevents accidental opening; secondary cotter pin option for critical loads. Electropolished & Passivated – smooth surface prevents biofouling; salt and chemicals rinse off; no pitting or crevice corrosion. Compact Low-Profile Design – minimal projection reduces snag risk; fits tight spaces on deck or rigging. Silent Stainless Operation – 316 SS pin + PTFE bushing—no galling, no seizing, smooth actuation after years of exposure. Factory-Direct Pricing – 35% cheaper than drop-forged or brass equivalents; MOQ 300 pcs.
Usage Scenarios
Marine Anchoring & Mooring – 8–12 mm chain; 800–1500 kgf SWL for yachts, workboats, and offshore platforms; instant release for emergency departure.
Industrial Lifting & Hoisting – 6–10 mm chain; 500–1000 kgf for factory cranes, stage rigging, or construction hoists; certified for overhead lifting.
Petrochemical & Offshore – explosion-safe, non-sparking 316 SS for oil rigs, chemical plants, or gas facilities; NACE MR0175 compliant.
Rescue & Safety Equipment – rapid connect/disconnect for rescue harnesses, stretcher rigs, or evacuation systems; one-hand operation capability.
Agriculture & Forestry – weatherproof quick attachment for logging chains, tractor implements, or livestock handling equipment.
FAQ
Q1: Is 316 SS truly maintenance-free in seawater? A1: Correct—2–3% molybdenum content provides immunity to chlorides and pitting; rinse with fresh water periodically to maintain electropolished finish. Q2: What is the working load per buckle size? A2: 500 kgf (6 mm), 800 kgf (8 mm), 1200 kgf (10 mm), 1500 kgf (12 mm); always apply 4:1 safety factor for lifting applications. Q3: Can this buckle be used for overhead lifting? A3: Yes—ZB8001 series is certified for overhead lifting when properly inspected; always use secondary cotter pin for critical loads. Q4: Will the pin corrode or seize after long immersion? A4: No—electropolished 316 SS pin with PTFE-impregnated bushing prevents galling; tested 12 months continuous seawater immersion, operates smoothly. Q5: Are 304 stainless versions available for freshwater use? A5: Yes—304 option available on request, MOQ 500 pcs, 15% price discount; not recommended for saltwater or chemical exposure. Q6: What chain standards are compatible? A6: Fits DIN 766, DIN 5685, ISO 4565, and US standard G30/G43/G70 chain; custom profiles available for specialized chain. Q7: Do you provide material certification and test reports? A7: Mill certificate for 316 SS, salt-spray test report, load test certificate, and full material traceability supplied free on request.
