Harken 443 22 mm Micro Block, Eye Strap
- Brand:
- Harken
- Part no:
- 443
Image: Fisheries Supply
Where to buy
View on Amazonpaid link
Specifications
- Bearing
- Ball
- Side plates
- Stainless
The Harken 443 is a 22 mm Micro block with an eye strap. It is small, light and free running, with stainless steel side plates and ball bearings made of Delrin. The shackle pin is 3/16 inch in diameter. The maker lists it for sail controls such as cunninghams, outhauls, vangs and traveler controls, and also for barberhaulers and flag halyards.
Our take
The 443 is a 22 mm block with a 3/16 inch shackle pin and Delrin ball bearings, so it is a small, free running block for the control lines the maker lists, such as outhauls, vangs and flag halyards.
From our buying guide
Ball-bearing blocks give the lowest friction on lines running under moderate loads. Plain bearings have more friction, but handle very high and static loads.
Check before you buy:
- A ratchet block is rated for the full sheet load.
- Any becket's load limit suits the job, since a becket can be rated below the block itself.
- A soft-attach block will be looked after, since Harken warns soft attachments are prone to wear and recommends them only for regularly maintained race boats.