57mm Harken Automatic Ratchet Block
The 57mm Harken T2 Ratchamatic is Harken’s newest block to feature the T2 line’s styling and soft-attachment system.
The weight of this high-strength block is only a few ounces.
Pressure on the line engages the ratchet mechanism, which switches seamlessly from free-running to ratchet mode. Unloaded main and jib sheets run out freely during mark roundings, and asymmetrical spinnaker sheets free instantly during jibes. T2 Ratchamatic blocks are clearly labeled with high-contrast directional markers for correct reeving and trimming direction.
Use for mainsheet and spinnaker systems on beachcats, dinghies, and sportboats.
A length of Spectra® line with a polyester cover is included.
- Sheave Ø (mm) - 57 mm
- Length (mm) - 79 mm
- Weight (g) - 71 g
- Maximum line Ø (mm) - 10 mm
- Maximum working load (kg) - 227 kg
- Breaking load (kg) - 907 kg
- Holding power w/180 degree wrap 50 lb (23 kg) - 10:1
Delivery and Costs
We try to treat delivery as a pass through cost and keep the cost to you as low as possible, on top of our already competitive product prices.
We offer free UK standard delivery for orders over £50, this does exclude boats, trolleys, masts, booms and large items which can't be sent via standard mail.
Any order placed by midday will leave us the same working day unless there is a lead time which we detail on the product page.
UK 2nd Class Small Packet - £3.99
UK 1st Class Small Packet - £4.50
UK 1st Class Small Packet - Over 1KG - £5.99
DHL Next Day Courier - £8.99
Courier - Long Items - Masts, Booms, Rig Packages Etc - £40
Close to England - £10
Boats, trollies and trailers - Custom quote, please get in touch
We do not have other shipping destinations set up currently due to customs charges and the cost of shipping, this will be reviewed soon. If you would like to order an item and can't see your location simply drop us an email to email@example.com with the items you are planning on ordering and your address.