Mooring & Rigging Hardware Manufacturer
Anchors, chain, shackles, swivels and turnbuckles for moorings, docks and aquaculture grids — proof-tested, hot-dip galvanized, Lloyd's-grade
A mooring or rigging system is only as strong as its weakest connection, and the failures are almost always at the joints — an undersized shackle, a mismatched finish, a swivel rated below the chain it joins. Specifying ground tackle as a matched system, not a basket of parts, is what keeps a mooring on station through a blow.
Everwin forges and tests the full chain of components — anchors, chain, shackles, swivels, and turnbuckles — so the whole system shares one strength rating and one corrosion standard, with working load limits permanently marked on every piece.
Proof-tested ground tackle
Anchors, shackles, and swivels are individually proof-tested to twice their rated working load, with limits permanently marked — and key lines carry Lloyd's Register type approval.
Matched, certified components
Chain, connectors, and tensioners specified to one working-load and one finish standard, so nothing in the system is the weak link. Certification documents available on request.
Corrosion-built
Hot-dip galvanized after fabrication, with electro-galvanized and 316 stainless options for permanent immersion — matched across the system to limit galvanic corrosion.
Mooring & rigging hardware
The full ground-tackle and connecting-hardware chain, specified to one rating and one finish.
Specify the whole system, not the parts
The right way to order mooring hardware is to start from the load and work outward: size the anchor to the vessel or structure and bottom, match the chain's working load and link pitch, then bring every shackle and swivel up to or above the chain's rating. Finishes should match across the system — a stainless connector on galvanized chain creates a galvanic-corrosion watch point. We can quote the complete chain to one spec so the components are guaranteed compatible.
- Anchor sized to vessel/structure, bottom, and exposure
- Chain working load and link pitch matched to the anchor and windlass
- Every shackle and swivel rated at or above the chain WLL
- Finishes matched across the system to limit galvanic corrosion
Beyond boats: docks, aquaculture and structures
The same hardware moors more than vessels. Aquaculture longlines and raft grids, floating docks, navigation marks, and tensioned structural cabling all draw on the same anchors, chain, and turnbuckles — and the same logic of matching every connection to the load. Turnbuckles add the tensioning element for standing rigging and guy-wire work where a fixed length won't do.
Common questions
Are working load limits marked, and can you supply certification?
Working load limits are permanently marked on anchors, shackles, and swivels, and key marine lines carry Lloyd's Register type approval. Certification and test documentation are available on request.
Should I choose galvanized or stainless for a permanent mooring?
Hot-dip galvanized is the durable, cost-effective standard for most mooring service; 316 stainless suits critical connectors and continuous immersion. Match finishes across the system to avoid galvanic corrosion — our corrosion-finishes guide covers the trade-offs.
Can you cut chain to length and match it to our windlass?
Yes — chain is available cut-to-length and calibrated for windlass-gypsy compatibility. Tell us your grade, diameter, and windlass and we will confirm the spec.