All Purpose


Series 40 All Purpose Block, Fiddle with Becket and Cam Cleat

All purpose fiddle block with becket, adjustable cleat and universal head


Exceptionally high working loads

Low maintenance, long service life

Self-lubricating sheave

Captive Lock™ universal head

Slotted pin shackle eliminates fouled lines

Snap fit removable becket pin

Multi-position cleat arm

Spare parts - RF41010 Replacement Becket Pin, RF150 Shackle


Product Specifications
Pin Ø (in)3/16
Max. Rope diameter (in)5/16
M.W.L. (lb)550
Sheave diameter (in)1 9/16 + 15/16
B.L. (lb)2200
Weight (oz)5.8

Product Information

All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.

Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Quick adjusting cleat arms require no tools to adjust and fix securely in position. 

Technical Information


  • Mainsheet
  • Halyard
  • Vang
  • Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)
  • Ideal for fine-tune mainsheet tackles, cunninghams, backstays and other control line purchase systems.



  • U.V. stabilised Acetal sheaves
  • Impact and U.V. resistant, fibre reinforced Nylon cheeks
  • Grade 316 stainless steel bearing race
  • Grade 316 stainless steel load strap and head fitting
  • Impact and UV resistant, fibre reinforced Nylon cheeks.


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