Ronstan RF51100 AP Single Block

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The Ronstan RF51100 is an all-purpose (AP) single block built for sheets, halyards, and control line applications in both cruising and racing. Self-lubricating Acetal polymer sheav es run on polished stainless steel races for low friction and long service life. The Captive Lock™ universal head can be fixed in either of two planes or left free to swivel as required. Captive Lock™ universal head — fixed in two planes or free to swivel Self-lubricating Acetal polymer sheave for low friction and durability Slotted pin shackle eliminates fouled lines Exceptionally high working loads, low maintenance, long service life Pin Diameter 3/16 in Max Rope Diameter 1/2 in Sheave Diameter 2 in M.W.L. 1,650 lb Breaking Load 3,310 lb Weight 4.2 oz Show more