Tufnol is strong, light, economical and low maintenance solution for sailing boat blocks. Our Tufnol blocks are manufactured in the Netherlands with solid stainless steel frames and brass bush bearings.
ALL Tufnol Blocks are measured for max line diameter size, by the last number in the PART NUMBER; for example: 4340/OO/10 ie: 10=10mm line; 12=12mm line, etc etc.
Single block w Bow and Becket
Part No. .
Rope Dia
Sheave Dia
Breaking Load daN
s.w.l. daN
4315/00/10
10mm
30mm
820
410
4315/00/12
12mm
35mm
1250
625
4315/00/14
14mm
50mm
2210
1105
4315/00/16
16mm
63mm
2800
1400
Single block w Eye and Becket
Part No.
Rope Dia
Sheave Dia
Breaking Load daN
s.w.l. daN
4320/00/10
10mm
30mm
820
410
4320/00/12
12mm
35mm
1250
625
4320/00/14
14mm
50mm
2210
1105
4320/00/16
16mm
63mm
2800
1400
Single block w Swivel and Becket
Part No.
Rope Dia
Sheave Dia
Breaking Load daN
s.w.l. daN
4325/0010
10mm
30mm
830
415
4325/00/12
12mm
35mm
1350
675
4325/00/14
14mm
50mm
2020
1010
4325/00/16
16mm
63mm
2200
1100
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