The stainless steel shackles we use on Harken® blocks are available separately. Harken forged stainless steel shackles are polished to a high luster and are stamped with the screw pin diameter. The breaking strengths shown are derived from weights supported by 80% of the length of the shackle pin, similar to the length spanned by an appropriate block's headpost.
Twist shackles are forged with a 90-degree twist so the two attachment points can be perpendicular without torquing
Reference |
HK2105 |
HK2112 |
HK2119 |
HK2125 |
Shackle pin Ø (mm) |
5mm |
6mm |
8mm |
10mm |
Shackle pin Ø (in) |
3/16in |
1/4in |
5/16in |
13/32in |
Weight (g) |
22g |
32g |
52g |
140.5g |
Weight (oz) |
0.78oz |
1.12oz |
1.84oz |
4.96oz |
A (mm) |
37mm |
29mm |
41mm |
48mm |
A (in) |
1 7/16in |
1 1/8in |
1 5/8in |
1 7/8in |
B (mm) |
10mm |
12mm |
17mm |
19mm |
B (in) |
3/8in |
1/2in |
11/16in |
3/4in |
Maximum working load (kg) |
540kg |
750kg |
1380kg |
2210kg |
Maximum working load (lb) |
1190lb |
1650lb |
3040lb |
4870lb |
Breaking load (kg) |
1080kg |
1500kg |
2760kg |
4420kg |
Breaking load (lb) |
2380lb |
3300lb |
6080lb |
9740lb |
- Material(s):
- Stainless Steel A4
- Useful Lenght (mm):
- 37
- Width (mm):
- 10
- Breaking Load (kg):
- 1080
- Working Load (kg):
- 540
- Shackle Pin Ø (mm):
- 5
- Weight (gr):
- 2.5
- Shape:
- Twisted
- Manufacturing Type:
- Forged
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