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ISC 2.2 Ton Spring Lock Aluminum Block works with up to 5/8in. Rope

ISC 2.2 Ton Spring Lock Aluminum Block works with up to 5/8in. Rope
Item #: 16454
2-3/4in sheave, up to 5/8in rope capacity, weighs, 3.75 lbs, 2.2 ton working load limit. Orange sheave (5/8in rope capacity) for easy identification.

Availability: In Stock


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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 withstanding 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).
Additional Information

Additional Information

Weight 3.75 lb.
Brand ISC
Color Red
Diameter No
Strand Count No
Certifications Yes
Material Aluminum
Sheave Diameter 2 3/4"
Working Load Limit 4400 lbs ( 19.57 kN )

Customer Reviews

NICE!!! Review by Scott
Very nice block, We use it with 5/8 bull rope to redirect the pull with our 277 CAT. Yes, I can pull around corners. ;-) (Posted on 6/29/2014)
Must Have... Review by Will
Sweet, sweet block. Easy to open, easy to close, smooth edges, and you can bomb pretty much anything in to it. This is the one I pull out when I have big logs that need to be rigged down via negative rigging. (Posted on 5/17/2014)

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