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A20401F

40mm Single Dynamic Block - Fiddle

40mm Single Dynamic Block - Fiddle

£50.96 ex VAT £61.15 inc VAT
ex VAT £0.00 inc VAT £50.96 ex VAT £61.15 inc VAT
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Description

40mm Single Dynamic Swivel Block With Fiddle

The 40mm Single Dynamic Swivel Block With Fiddle is a high-performance pulley designed for keelboats and dinghies. Manufactured from durable, lightweight glass-loaded nylon and featuring Allen's advanced Dynamic Bearing Technology, it delivers smooth, efficient line handling for mainsheets, jib sheets, spinnaker sheets, and control line systems.

The addition of a 20mm fiddle sheave makes this block ideal for compact purchase systems where smooth operation and efficient load handling are required.

Key Features

  • Single-sheave block with integrated fiddle sheave for compact purchase systems
  • Manufactured from durable, lightweight glass-loaded nylon
  • Ideal for mainsheet, jib sheet, spinnaker sheet, and keelboat control line applications
  • Patented Dynamic Bearing System with twin rows of stainless-steel ball bearings running on a stainless-steel rail
  • Caged ball bearings for reduced friction and enhanced rolling performance
  • Superior load-carrying capability and long service life
  • 360° Swivel Head fitted with a 4mm shackle for flexible attachment and optimal load alignment
  • 20mm Dynamic Bearing Fiddle Sheave ensures smooth, efficient operation in multi-purchase systems
  • Low-friction, fast-rolling performance across both sheaves
  • Designed for smooth, reliable performance in demanding marine environments
  • Ideal for lightweight control systems requiring additional purchase in a compact assembly
Accessories Fiddle, Swivel
Bearing type Dynamic
Brand Allen
Breaking load kg 780
Configuration Single
Height mm 107
Iges GenericFileDrop
Iges file link https://abassets.ams3.digitaloceanspaces.com/iges/a20401f.igs
Length mm 108.38
Maximum line diameter mm 10
Maximum working load kg 240
Pdf GenericFileDrop
Pdf ref link https://abassets.ams3.digitaloceanspaces.com/product_files/a20401f-ref_2.pdf
Pin size mm 4
Related collection CollectionDrop
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SKU Title Breaking Load Kg Max Working Load Kg Hole Pitch mm Length mm Max Line Dia mm Pin Size mm Weight (g) Price
A20401S-2030

40 & 30mm Single Dynamic Blocks - Linked

 780 140 - 108 8 - 64
£50.72 ex VAT £60.86 inc VAT
ex VAT £0.00 inc VAT £50.72 ex VAT £60.86 inc VAT
A20402

40mm Double Dynamic Block

 1150 500 - 93.55 10 5 100
£76.79 ex VAT £92.15 inc VAT
ex VAT £0.00 inc VAT £76.79 ex VAT £92.15 inc VAT
A20402B

40mm Double Dynamic Block - Becket

 1150 500 - 110.05 10 5 113
£78.88 ex VAT £94.66 inc VAT
ex VAT £0.00 inc VAT £78.88 ex VAT £94.66 inc VAT
A20404

40mm Quad Dynamic Block

 1400 750 - 95.05 10 5 213
£153.56 ex VAT £184.27 inc VAT
ex VAT £0.00 inc VAT £153.56 ex VAT £184.27 inc VAT
A20401

40mm Single Dynamic Block

 780 240 - 83.38 10 4 54
£38.39 ex VAT £46.07 inc VAT
ex VAT £0.00 inc VAT £38.39 ex VAT £46.07 inc VAT
A20401B

40mm Single Dynamic Block - Becket

 780 240 - 99.88 10 4 59
£40.48 ex VAT £48.58 inc VAT
ex VAT £0.00 inc VAT £40.48 ex VAT £48.58 inc VAT
A20401B-77

40mm Single Dynamic Block - Becket, Cleat

 780 80 - 99.88 6 4 122
£94.14 ex VAT £112.97 inc VAT
ex VAT £0.00 inc VAT £94.14 ex VAT £112.97 inc VAT
A20401BF

40mm Single Dynamic Block - Becket, Fiddle

 780 240 - 126.88 10 4 73
£57.39 ex VAT £68.87 inc VAT
ex VAT £0.00 inc VAT £57.39 ex VAT £68.87 inc VAT
A20401BF-77

40mm Single Dynamic Block - Becket, Fiddle, Cleat

 780 80 - 126.88 6 4 141
£109.55 ex VAT £131.46 inc VAT
ex VAT £0.00 inc VAT £109.55 ex VAT £131.46 inc VAT
A20401BFH-77

40mm Single Dynamic Block - Becket, Fiddle, Hook, Cleat

 540 80 - 153 6 4 172
£114.77 ex VAT £137.72 inc VAT
ex VAT £0.00 inc VAT £114.77 ex VAT £137.72 inc VAT
A20401C

40mm Single Dynamic Block - Cheek

 780 240 35.5 62 10 - 36
£35.54 ex VAT £42.65 inc VAT
ex VAT £0.00 inc VAT £35.54 ex VAT £42.65 inc VAT
A20401CB

40mm Single Dynamic Block - Cheek, Becket

 780 240 62.5 X 14.6 73 10 - 41
£37.63 ex VAT £45.16 inc VAT
ex VAT £0.00 inc VAT £37.63 ex VAT £45.16 inc VAT
A20401-77

40mm Single Dynamic Block - Cleat

 750 80 - 83.38 6 4 118
£92.07 ex VAT £110.48 inc VAT
ex VAT £0.00 inc VAT £92.07 ex VAT £110.48 inc VAT
A20401F

40mm Single Dynamic Block - Fiddle

 780 240 - 108.38 10 4 68
£50.96 ex VAT £61.15 inc VAT
ex VAT £0.00 inc VAT £50.96 ex VAT £61.15 inc VAT
A20401F-77

40mm Single Dynamic Block - Fiddle, Cleat

 780 80 - 108.38 6 4 136
£104.58 ex VAT £125.50 inc VAT
ex VAT £0.00 inc VAT £104.58 ex VAT £125.50 inc VAT
A20401H

40mm Single Dynamic Block - Hook

 540 250 - 109 10 - 73
£43.60 ex VAT £52.32 inc VAT
ex VAT £0.00 inc VAT £43.60 ex VAT £52.32 inc VAT
A20401BFH

40mm Single Dynamic Block - Hook, Becket, Fiddle

 540 240 - 153 6 4 91
£62.60 ex VAT £75.12 inc VAT
ex VAT £0.00 inc VAT £62.60 ex VAT £75.12 inc VAT
A20401FH

40mm Single Dynamic Block - Hook, Fiddle

 540 240 - 134 6 4 86
£56.18 ex VAT £67.42 inc VAT
ex VAT £0.00 inc VAT £56.18 ex VAT £67.42 inc VAT
A20401FH-77

40mm Single Dynamic Block - Hook, Fiddle, Cleat

 540 80 - 134 6 4 154
£109.80 ex VAT £131.76 inc VAT
ex VAT £0.00 inc VAT £109.80 ex VAT £131.76 inc VAT
A20401SR

40mm Single Dynamic Block - Removable Strap

 700 240 - 64 10 - 41
£37.55 ex VAT £45.06 inc VAT
ex VAT £0.00 inc VAT £37.55 ex VAT £45.06 inc VAT
A20401SLZ

40mm Single Dynamic Block - Stand Up

 700 240 36.25 74 10 - 45
£38.88 ex VAT £46.66 inc VAT
ex VAT £0.00 inc VAT £38.88 ex VAT £46.66 inc VAT
A20401S

40mm Single Dynamic Block - Strap

 700 240 - 64.5 10 - 41
£33.74 ex VAT £40.49 inc VAT
ex VAT £0.00 inc VAT £33.74 ex VAT £40.49 inc VAT
A2040Tii

40mm Single Dynamic Block - Tii-On

 800 180 - 58 10 - 36
From £33.74 ex VAT £40.49 inc VAT
ex VAT £0.00 inc VAT From £33.74 ex VAT £40.49 inc VAT
A20401HL

40mm Single High Load Block

 780 360 - 83.38 10 4 77
£59.18 ex VAT £71.02 inc VAT
ex VAT £0.00 inc VAT £59.18 ex VAT £71.02 inc VAT
A20401CHL

40mm Single High Load Block - Cheek

 780 360 35.5 62 10 - 54
£54.85 ex VAT £65.82 inc VAT
ex VAT £0.00 inc VAT £54.85 ex VAT £65.82 inc VAT
A20401SRHL

40mm Single High Load Block - Removable Strap

 700 360 - 64.5 10 - 64
£56.45 ex VAT £67.74 inc VAT
ex VAT £0.00 inc VAT £56.45 ex VAT £67.74 inc VAT
A2040TiiHL

40mm Single High Load Block - Tii-On

 800 360 - 58 10 - 41
£54.50 ex VAT £65.40 inc VAT
ex VAT £0.00 inc VAT £54.50 ex VAT £65.40 inc VAT
A2040XHL-B

40mm Single XHL Block

 1500 650 - 54 8 - 73
£161.40 ex VAT £193.68 inc VAT
ex VAT £0.00 inc VAT £161.40 ex VAT £193.68 inc VAT
A20403

40mm Triple Dynamic Block

 1400 750 - 93.35 10 5 159
£115.18 ex VAT £138.22 inc VAT
ex VAT £0.00 inc VAT £115.18 ex VAT £138.22 inc VAT
A20403B

40mm Triple Dynamic Block - Becket

 1400 750 - 110.05 10 5 163
£117.20 ex VAT £140.64 inc VAT
ex VAT £0.00 inc VAT £117.20 ex VAT £140.64 inc VAT
A20403B-77

40mm Triple Dynamic Block - Becket, Cleat

 1400 750 - 110.5 6 5 240
£183.50 ex VAT £220.20 inc VAT
ex VAT £0.00 inc VAT £183.50 ex VAT £220.20 inc VAT
A20403-77

40mm Triple Dynamic Block - Cleat

 1400 750 - 93.35 6 5 240
£181.47 ex VAT £217.76 inc VAT
ex VAT £0.00 inc VAT £181.47 ex VAT £217.76 inc VAT
ATII-LOCK-40

Tii-Lock-40

 - - - - - - -
£3.75 ex VAT £4.50 inc VAT
ex VAT £0.00 inc VAT £3.75 ex VAT £4.50 inc VAT