Single block with bow and becket

Single Tufnol Block - Fixed Bow with Becket

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Tufnol is a traditional laminated plastic material made from phenolic resin and woven cotton or linen fabric.  It is strong and light, and provides an economical, low maintenance and traditional solution for sailing boat blocks.

Our Tufnol blocks are manufactured in Holland with solid stainless steel frames and brass bush bearings.

The single Tufnol block, fitted with a fixed bow and becket, comes in four sizes to work with ropes from 10mm through to 16mm.


SKU Shell Size  Rope Size* Sheave
Breaking Load 
Safe Working
021613  2-1/4" (58mm)  10mm  30mm  Approx. 820kg  410kg
021614  2-3/4"" (70mm)  12mm  35mm  Approx 1250kg  625kg
021615  3-3/4" (95mm)  14mm  50mm  Approx 2210kg  1105kg
021616  4-3/4" (120mm)  16mm  63mm  Approx 2800kg  1400kg

* Note - we recommend choosing products one rope size size larger than indicated to ensure adequate free movement.

1 Review

  • 5
    Ships master wutuku

    Posted by Unknown on 8th Oct 2013

    As master of STS Wutuku a 60ft Traditional sail training Ketch I have in the past found it hard to find historic boat hardware. Although I have so far bought some blocks from CBS the service was great I will try them again for sure