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Tylaska 2:1 Halyards Shackles - Specifications and Comparison


Tylaska True 2:1 Sheaved Shackles


Using a high strength composite sleave bearing, Tylaska has created true 2-1 halyard shackles capable of handling the full rated load of the shackle. The size was made to fit standard sail headboards without adding any unnecessary weight. Strength was optimized by computer and then verified by numerous "make and break" destructive tests.

Part # Work Load Breaking Strength Weight Line Size
2:1 H5 1136 kg
2500 lb
2273 kg
5000 lb
65.2 g
2.3 oz
10 mm
7/16 in.
2:1 H8 1818 kg
4000 lb
3636 kg
8000 lb
110.6 g
3.9 oz
14 mm
9/16 in.
2:1 H12 2727 kg
6000 lb
5455 kg
12000 lb
178.6 g
6.3 oz
16 mm
5/8 in.
2:1 H20 4545 kg
10000 lb
9091 kg
20000 lb
377.0 g
13.3 oz
22 mm
7/8 in.

Part # A- Overall Length B- Overall Width E- Effective Throat Length F- Inside Throat Width G- Thimble Groove Width
2:1 H5 74.4 mm
2.93 in.
25.4 mm
1.0 in.
23.1 mm
0.91 in.
16.1 mm
0.64 in.
13.0 mm
0.51 in.
2:1 H8 84.3 mm
3.32 in.
33.4 mm
1.315 in.
21.6 mm
0.85 in.
19.3 mm
0.76 in.
16.0 mm
0.63 in.
2:1 H12 103.6 mm
4.08 in.
38.2 mm
1.505 in.
30.5 mm
1.20 in.
22.4 mm
0.88 in.
18.3 mm
0.72 in.
2:1 H20 133.4 mm
5.25 in.
46.5 mm
1.8336 in.
36.6 mm
1.44 in.
25.4 mm
1.0 in.
22.4 mm
0.88 in.


Part Numbers: 2:1 H5, 2:1 H8, 2:1 H12, 2:1 H20

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Tylaska 2:1 Halyard Shackle - H12 Aluminum
TYLH1221
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