Range / Blocks / 20mm dynamic blocks

20mm Single Tii-On


(2 customer reviews)

£9.54£19.04 ex. VAT

20mm Single Tie-On block

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SKU: A2020Tii- Category:


20mm Single Tii-On Block.

Our Tii-On blocks feature a stainless-steel loop at the head of the block. This gives our Tii-On range maximum strength and reliability with minimal cheek separation when tied on and loaded up with a soft shackle. The stainless-steel head loop also ensures the block stays in the right orientation when being used.


When attaching a Tii-on block you must feed the rope around the central axle and through the head of the block. Tii-On blocks rely on the correct attachment method to give them maximum strength.


Available with or without a soft shackle.


Becket – The large central rivet not only reduces the overall weight but also offers a rope friendly attachment, perfect as a tie-off point when being used in a cascade system.

Bearings – Dynamic Blocks feature our patented bearing system which uses twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides a superior load-carrying ability and longevity when compared to other bearing systems which run on a plastic rail. 

2 reviews for 20mm Single Tii-On

  1. megpascoe

    Great and versatile. I use for my main sheet traveler. Perfect small size for the job.

  2. C.Jozefa

    Strong little pulley

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20mm Single Tii-On

Titlebreaking load kgfixing hole centres mmlength mmmaximum line diameter mmmaximum working load kgshackle pin mmweight gPrice ex VAT
A202020mm Single Block540-376115-10£9.54
A2020-4035Single With P-Clip540-606115515£11.47
A2020-4036Single With Offset Lacing Eye54015526115-15£12.80
A2020FSingle With Fork Head350-396115415£15.16
A2020HLSingle High Load540-376250-17.5£24.26
A2020HL-4036Single High Load With Lacing Eye 54015526250-21£27.60
A2020LZSingle Stand-Up Fixed54027436115-15.4£15.92
A2020SCSingle With Swivel Head350-536115415.4£24.21
A2020SHKSingle With Swivel Hook350-586115-19£23.49
A2020Ti3Single Ti3-On540-296115-8£9.54
A2020Ti3HLSingle Ti3-On540-296250-14£24.26
A2020Tii-Single Tii-On 540-296115-8£9.54
A2020XHLExtreme High Load 900-296400-17£88.68
A2021Single Multi Function350-356115-11.5£8.80
A2021FSingle With Fork Head350-486115415.2£15.16
A2021HKSingle With Fixed Head165-656115-17.5£14.70
A2021HLSingle Multi Function With High Load Sheave540-356250-11.5£23.52
A2021SCSingle With Shackle Swivel Head350-526115415.4£21.95
A2022AArticulating Double600-486200-29.1£26.07
A2022FDouble With Fork600-516225415.5£25.96
A2022HLDouble High Load600-486325-42£53.76
A2022LZDouble Stand Up Fixed600-536225-34£30.72
A2022SC20mm Double With Swivel350-566225435£36.62
A2022SHKDouble With Swivel Hook500--6225-35£36.62
A2022Tii-Double Tii-On600-296225-15.6£26.08
A2023Double With Becket600-596225-33.5£25.58
A2023HKDouble With Becket And Hook600-1106225-60.2£40.94
A2024Triple Block650-506320-47.9£35.23
A2024-677Triple With Inverted Cleat650-556320-86.9£81.15
A2024AArticulating Triple650-506300-42.9£37.03
A2024FTriple With Fork650-516320448£58.59
A2024HLTriple High Load650-506400-63£79.36
A2025Triple With Becket650-666320-52.9£39.01
A2025-677Triple, Inverted Cleat & Becket650-666320-86.9£84.91
A202620mm Single Cheek Block350-456115415.3£14.24
A2026-PROFIXCheek Adaptor For A2021------3.8£6.03
A2026HLCheek Block High Load350-456350-21.3£28.96
A2026MSingle Composite Cheek54018336115-12£15.78
A2027Triple, Cleat & Becket650-756320-86.9£84.91
A2027NBTriple With Extended Cleat And No Becket 650-756320-98£84.91
A2028Back To Back540-526115-20£21.70
A2028HLBack To Back High Load540-526300-32£51.18
A2029Linked Singles540-706115-21.8£20.34
A2121Single Through Deck35042546105-10.80£19.53
A2121HLSingle Through Deck Block With Steel Sheave40042546--10.8£34.25
A2122Double Through Deck 35064606105-20£29.31
A2122HLDouble Through Deck Block With Steel Sheave35063756--20£58.75
A2126MDouble Composite Cheek Block54018336225-23£34.69
A4251Single Through Deck40025 x 24326105-30£19.58
A4502Classic Stand Up Single 35027 x 19326105-22£17.82
A4504Double Upstand Block35027 x 19326105-94£41.98
A4710Lightweight Stand Up Single 35026376105-19£14.09
A5849Deck Mounting Plate With Two A2021F35025516115450£46.19