William Hackett G4 Stainless Steel Calibrated Anchor Chain is manufactured from AISI 316L/1.4404 with a tumble-polished finish, solution annealed for enhanced corrosion resistance.
- Manufactured on automatic chain-making machines from AISI 316L/1.4404 to Grade 4
- Calibrated during manufacture, then proof load tested at the end of the process.
- All chain is embossed at every 20th link or 1m intervals with a four-digit batch number for purposes of traceability.
- Suitable for use in a saltwater environment.
- Finish: solution annealed for additional corrosion resistance and tumble polished.

Stainless Steel Chain Specifications
| William Hackett |
Chain Size A |
Calibration |
Pitch B |
Internal Width C |
MBL |
Weight Per Metre |
| IS1.060.5 |
6mm |
DIN766 |
18.5mm |
9mm |
2200kg |
0.75 kg |
| IS1.080.5 |
8mm |
DIN766 |
24mm |
12mm |
4000kg |
1.4 kg |
| IS1.100.5 |
10mm |
ISO4565 |
30mm |
14mm |
6400kg |
2.2 kg |
| IS1.100.D766 |
10mm |
DIN766 |
28mm |
14mm |
6400kg |
2.3 kg |
| IS1.120.5 |
12mm |
ISO4565 |
36mm |
18mm |
9600kg |
3.2 kg |
MBL = Manufacturer Minimum Break Load
Pitch = Internal Length
This chain is sourced in the UK from William Hackett Ltd, a respected manufacturer and distributor of chains since 1892.
This pictorial of the G4 Stainless Steel Specifications is derived from their latest website catalogue:
