Mantus
Mantus M3 CH1 Chain Hook — 1/4–5/16 in (6–8 mm)
Mantus M3 CH1 Chain Hook — 1/4–5/16 in (6–8 mm)
SKU:M3CH1
- 1/4–5/16 in / 6–8 mmChain fit
- 2,507 lb / 1,137 kgWorking load limit
- 2205 duplexStainless steel
CH1 latching chain hook for attaching a snubber or bridle to smaller anchor chain. It remains captured when the chain goes slack.
See full product details and specificationsCouldn't load pickup availability
- Ships in 1–5 business days
- 30-day returns
- Advice from real cruisers
M3 Chain Hook
- The M3 Chain Hook securely latches to the chain even when chain is unloaded, making it much safer than standard chain hooks that often fall off.
- The M3 Hook is made from 2205 Duplex, thus withstanding the harsh marine environment and is still the strongest hook on the market.
- Ideal for use with a snubber or a bridle.
- Fits BBB, Proofcoil, Hi Test and Stainless Chain.
- 1/4 to 5/16
Shipping & lead times
Shipping & lead times
We're a small team of boaters and we pack orders within 1–5 business days (no weekend or holiday packing). You'll get an email with tracking as soon as a label goes on your box.
Specialty items — fire extinguishers (dangerous goods) and low-stock or built-to-order gear — can take longer; the product description will say so. On a tight timeline or meeting your boat somewhere specific? Contact us and we’ll work out the fastest way to get gear to you.
International orders ship DDU: local duties, taxes, and customs fees are the buyer’s responsibility. Full details in our shipping policy.
Returns & refunds
Returns & refunds
30-day returns from the date of purchase. Items must be unused, in the original packaging with all cables and accessories, with proof of purchase.
Contact us before shipping anything back — we’ll send the return form that must accompany your return. Fire extinguisher and lithium battery items carry a $15 administrative fee on returns.
Read the full refund policy.
Ask a cruiser before you buy
Ask a cruiser before you buy
Everyone here is a current or past cruiser — we’ve docked short-handed, re-rigged at anchor, and chased 12V gremlins too. Not sure this is the right fit for your boat? Send us your question before you order and we’ll give you a straight answer.
M3 chain-hook sizing
The M3 closes around a chain link so it stays attached when the rode goes slack. It is intended for connecting a snubber or bridle and fits BBB, Proof Coil, High Test, and stainless chain. The hook body is 2205 duplex stainless steel.
| Hook | Chain diameter | Working load limit | Ultimate breaking strength | Recommended snubber rope |
|---|---|---|---|---|
| CH1 | 1/4–5/16 in (6–8 mm) | 2,507 lb (1,137 kg) | 10,028 lb (4,549 kg) | 1/2–5/8 in (13–16 mm) |
| CH2 | 5/16–3/8 in (8–10 mm) | 3,344 lb (1,517 kg) | 13,376 lb (6,068 kg) | 5/8–3/4 in (16–19 mm) |
| CH3 | 3/8–1/2 in (10–13 mm) | 4,803 lb (2,179 kg) | 19,214 lb (8,715 kg) | 3/4–1 in (19–25 mm) |
| CH4 | 1/2–5/8 in (12–16 mm) | 8,250 lb (3,742 kg) | 32,993 lb (14,965 kg) | 1–1 1/4 in (25–32 mm) |
Choose the smallest M3 hook that fits the chain unless higher-grade chain requires the next size.