Description
Stainless steel anchor shackle designed for the job:
- A flush hex head allows for smooth passage through the bow roller
- A socket wrench or a crescent wrench could be easily used to open or close the pin even after many months of use
- A hole in the hex head is designed to safety wire the pin to prevent pin loosening
- Mantus shackles are forged and use high quality 316 stainless steel
Galvanized anchor shackles with Breaking Strength six times the working load limit:
| Working Load Limit (lbs) Recommendations* | Ultimate Breaking Strength (lbs) | |||||||
| Size | Galvnized Shackles | 316 DropForgedStainless Shackles | Hi Test G4 Chain (artificially inflated use the bold number) | G3 ChainProof-coil, BBB | Galvanized Hi-Test Shackles | 316 Drop ForgedStainless Shackles | Hi Test G4 Chain | G3 Chain Proof-coil, BBB |
| 1/4 | 1,000 | 1,000 | 2,600/1,950 | 1,300 | 5,000 | 5,000 | 7,800 | 5,200 |
| 5/16 | 1,500 | 1,300 | 3,900/2,900 | 1,900 | 9,000 | 6,500 | 11,700 | 7,600 |
| 3/8 | 2,000 | 1,500 | 5,400/4,050 | 2,650 | 12,000 | 7,500 | 16,200 | 10,600 |
| 7/16 | 3,000 | 2,000 | 7,200/5,400 | N/A | 18,000 | 10,000 | 21,600 | N/A |
| 1/2 | 4,000 | 3,000 | 9,200/6,900 | 4,500 | 24,000 | 15,000 | 27,600 | 18,000 |
| 5/8 | 6,500 | 4,000 | 39,000 | 20,000 | ||||
- When sizing a stainless steel shackle for your anchor and Grade 30 galvanized chain, pick a shackle one size larger than the chain and the shackle will be the same strength as the chain.
- When sizing a stainless steel shackle for your anchor and Grade 40 galvanized chain, only a shackle one size larger will fit and the shackle will be 60 – 70% the strength of the chain, we recommend to using a mantus swivel to match the strength of the shackle connection to that of the Grade 40 chain.
- When sizing a galvanized steel shackle for your anchor and Grade 30 galvanized chain, pick a shackle the same size as your chain.
- When sizing a galvanized steel shackle for your anchor and Grade 40 galvanized chain, pick a shackle one size larger than the chain and the shackle will be the same strength as the chain.
store manager
David Ladd (verified owner) –
There might be a quality control issue with the hex head dimension on the pins. They were slightly to big for a 1/2” wrench and slightly too small for a 13mm wrench.
John M. (verified owner) –
eric (verified owner) –