| Block Size (in.) | Sheave Diameter (in.) |
Manila Rope Size (in.) | Working Load Limit* (lbs.) |
Weight Each (lbs.) |
||||||
| Outside Diam. | Rim Thickness | Center Pin Diam. | 21 Single | 22 Double | 23 Triple | 21 Single | 22 Double | 23 Triple | ||
| 3 | 1.75 | .50 | .38 | 3J8 | 500 | 800 | 1200 | 1.00 | 1.75 | 2.50 |
| 4 | 2.25 | .63 | .38 | 112 | 1000 | 1400 | 1800 | 1.75 | 3.00 | 4.00 |
| 5 | 3.00 | .75 | .38 | 518 | 1200 | 1800 | 2400 | 3.25 | 5.60 | 6.50 |
| 6 | 3.50 | 1.00 | .50 | 314 | 1800 | 2500 | 3200 | 5.00 | 8.50 | 11.50 |
| 8 | 4.75 | 1.13 | .63 | 7/8-1 | 2800 | 3800 | 4800 | 9.00 | 14.00 | 21.50 |
*Ultimate Load is 4 times the Working Load Limit.
Note: We furnish beckets on all blocks.
WARNING: Prop 65: Products supplied by CERTEX USA may expose you to chemicals including Nickel, which is known to the State of California to cause cancer. For more information, visit to www.P65Warnings.ca.gov.
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