Ronstan RF186 Series 29 Fiddle Block

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Ronstan RF186 Series 29 Fiddle Block

Series 29 Simple, Versitle and economical block which has many uses. Lightweight, durable contruction. Stainless steel cheeks and Acetal sheaves ensure long service life with virtually no maintenance required.


Sheave Ø 29 mm
Max. Rope Ø 8 mm
Max. Cable Ø - mm
Pin Ø - mm
M.W.L. 300 kg
B. L. 600 kg
Weight 50 g

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  • 4
    use for boom vang

    Posted by Phil O`Brien on 23rd Feb 2015

    I recently bought this block and a block with v jamb to use as boom vang fitings on a Matilda 20 trailer sailer. Both did the job i wanted them to, but would have liked one with a becket to attach rope for start of 4 part purchase system.