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Mantus Marine USA have designed an outstanding Mark2 version of their Chain Grabbing Hook - Duplex 2205 stainless steel - stronger, lighter, more ergonomic, smaller and more compact version with improved retaining strap
Mantus Chain Hook Facts, Features and Plus Factors:
- From the same design and manufacturing team as the world respected Mantus Anchor
- Securely latches to the chain even when under no load, making it much safer than chain hooks that may fall off
- Supreme specification 2205 Duplex stainless steel
- Built to withstand the harsh marine environment
- Specifically designed to be as strong as high test chain
- Mantus claim: the strongest chain grabbing hook available
- Improved retaining strap
- Includes a suitably strong stainless steel shackle
- Ideal for use with a snubbing line or snubbing V shape bridle
- Fits BBB, Proofcoil, High Test, DIN766 and ISO4565 chain, both galvanised and stainless steel
- USA imperial sizing with European metric equivalent: 1/4" (6/7mm) 5/16" (8mm) 3/8" (10mm) and 1/2" (12/13mm) chain
Mantus Hook Size | WLL | UBS | Shackle Size | Recommended Bridle Rope |
---|---|---|---|---|
6-7mm | 1,686 lbs | 6,744 lbs | 3/8 or 7/16" | 1/2 inch / 12mm |
8mm | 3,788 lbs | 15,154 lbs | 7/16" | 5/8 innch / 14mm |
10mm | 5,516 lbs | 22,066 lbs | 1/2" | 3/4 inch / 18mm |
12-13mm | 9,271 lbs | 37,085 lbs | 5/8" | 1 inch / 24mm |
Mantus Notes:
Recommended Bridle Rope this is the diameter recommended by Mantus Marine
WLL = Working Load Limit
Safety Factor = 4:1
UBS = Ultimate Breaking Strain - tested on a chain so that lateral load is also taken into account
Divide by 2.24 for strength in Kg
e.g. 8mm Chain Hook Break Load = 6765kg
Jimmy Green Advisory
Hooks and Grabs that have a locking device are naturally more fiddly to deploy and disengage.