ISC 3/4 in. 4.4 Ton Giant Spring Lock Aluminum Block
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Item # 1968430
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4-5/8 in. sheave, up to 3/4 in. rope capacity, weighs 7.7 lbs., 4.4 ton working load limit. Green sheave (3/4 in. rope capacity) for easy identification. Spring lock blocks are popular among riggers for their high strength-to-weight ratio and quick-twist rope access. Solid aluminum-alloy cheek plates, bushing, and sheave are supported by stainless-steel axles. For those concerned about aluminum not wstanding the punishment of steel, we have no record of a fracture complaint in 3 years of production. Spring lock blocks have broad cheek plates to protect running lines, and large sheaves to minimize bend in rigging lines (providing 4:1 up to 9:1 ratios).
- Colored cheek plates & sheaves to easily identify max rope s, safe working-load limits, max breaking strengths & sheave s
- 4-5/8 in. sheave, up to 3/4 in. rope capacity
- 4.4 ton Working Load Limit
- Solid aluminum-alloy cheek plates, bushing, and sheave are supported by stainless-steel axles
- Easy to open fixed-pin attachment
- Sheave color Green
| Brand | ISC |
|---|---|
| Country of Origin | Imported |
| Compatible Rope Diameter | 0.75 in. |
| Compatible Rope Type | Rope |
| Finish | Aluminum |
| Package Quantity | 1 |
| Primary Material | Aluminum |
| Product Weight | 8.5 lb. |
| Product Width | 7.4 in. |
| Warranty | None |
| Manufacturer Part Number | 21862 |
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