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Sailboat Hardware Harken Big Boat Hardware Big Boat Blocks57 mm BlocksHarken Hi-Load 57mm Single Swivel Block 1958
Sailboat Hardware Harken Big Boat Hardware Big Boat Blocks57 mm BlocksHarken Hi-Load 57mm Single Swivel Block 1958
Category: Sailing HardwareManufacturer: HarkenPart Number: 1958Part Name: 57 mm High-load Block with Swivel
- Description: Single swivel hi-load
- Length (in): 4 11/16
- Length (mm): 119
- Weight w/shackle (oz): 5.0
- Weight w/shackle (g): 142
- Shackle pin dia. (in): 1/4
- Shackle pin dia. (mm): 6
- Max. working load (lb): 2500
- Max. working load (kg): 1134
- Breaking load (lb): 5000
- Breaking load (kg): 2268
- Max. line dia. (in): 7/16
- Max. line dia. (mm): 12
- Sheave dia. (mm): 57
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