Ronstan Utility Block, Series 30 - Single, Swivel Shackle Head 18000k When connected to non-adjustable gauges

When connected to non-adjustable gauges the TS1 must be pre-calibrated

Can be used with or without foam insert (included)

Spinnaker pole launching systems

5/8” UNF thread

Ronstan Utility Block, Series 30 - Single, Swivel Shackle Head 18000k When connected to non-adjustable gaugesStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase. Features: Lightweight durable construction Economical Maintenance free Applications: Vang, cunningham and trapeze retriever systems on dinghies Leech line tackles, bunk adjusters etc on larger yachts Materials: U. V. stabilised Acetal