The original and still the most popular Harken block. They are compact, good looking, and exceptionally free running with a high load carrying capacity. Used for main & jib sheets on course racing keel boats, scows and dinghies with large mains. Often used for spinnaker halyards & sheets on small offshore boats.
Single Becket block Sheave diameter 2 1/4" Length 5" Max. line diameter 7/16" Shackle pin diameter 3/16" SWL 500# Breaking strength 2500