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crane_hooks

Custom Crane Hook

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Sizes A B C D E F G H J K L (min) M N O P
5 Ton 1-5/8 1-15/16 2-3/32 1-15/32 3-3/8 3-3/4 3-9/32 13 5-1/4 5 5-1/2 4-13/16 1-7/8 1-5/16 3
10 Ton 2-1/4 2-5/8 2-7/8 2-1/32 4-5/8 4-11/16 4-5/32 17 6-31/32 6-3/4 7 6-7/16 2-17/32 1-25/32 4-1/16
15 Ton 2-3/4 3-1/4 3-15/32 2-7/16 5-9/16 5-3/8 4-45/64 19 8-1/4 7-7/8 8-3/8 7-9/16 3-1/32 2-1/8 4-7/8
20 Ton 3-1/4 3-3/4 4 2-25/32 6-3/8 6 5-1/4 20 9-3/8 8-3/4 9-3/8 8-5/8 3-15/32 2-7/16 5-9/16
25 Ton 3-1/2 4-1/16 4-7/16 3-1/8 7-1/8 6-1/2 5-11/16 22 10-3/8 9-1/2 10-1/8 9-1/2 3-29/32 2-3/4 6-1/4
30 Ton 3-3/4 4-5/16 4-27/32 3-3/8 7-3/4 7 6-1/8 24 11-1/4 10-1/2 10-7/8 109/32 4-1/4 2-21/32 6-25/32
35 Ton 4-1/4 4-7/8 5-3/16 3-5/8 8-5/16 7-7/16 6-1/2 26 12-1/32 10-7/8 11-7/8 11 4-17/32 3-3/8 7-9/32
40 Ton 4-1/2 5-3/16 5-9/16 3-7/8 8-7/8 7-13/16 6-21/32 27 12-25/32 11-3/8 12-5/8 11-11/16 4-7/8 3-13/32 7-25/32
50 Ton 5 5-3/4 6-3/16 4-5/16 9-7/8 8-9/16 7-1/2 30 14-5/32 12-1/2 14 12-15/16 5-13/32 3-25/32 8-5/8
60 Ton 5-1/2 6-5/16 6-3/4 4-3/4 10-13/16 9-1/4 8-3/32 32 15-7/16 13-1/2 15-3/8 14-1/8 5-15/16 4-5/32 9-1/2
75 Ton 6 6-7/8 7-1/2 5-1/4 12 10-1/8 8-55/64 34 17-1/16 14-3/8 16-5/8 15-9/16 6-9/16 4-19/32 10-1/2
100 Ton 6-3/4 7-3/4 8-5/8 6-1/32 13-13/16 11-1/2 10-1/16 40 19-9/16 16-25/32 18-7/8 17-27/32 7-9/16 5-19/64 12-3/32

 


Important — Basic Machining and Thread Information Read and Follow

  • Wrong thread and/or shank size can cause stripping and loss of load.
  • The maximum diameter is the largest diameter, after cleanup, that could be expected after allowing for straightness, pits, etc.
  • All threads must be Class 2 or better.
  • The minimum thread length engaged in the nut should not be less than one (1) thread diameter.
  • Hook shanks are not intended to be swaged on wire rope or rod.
  • Hook shanks are not intended to be drilled and internally threaded.
  • Crosby cannot assume responsibility for, (A) the quality of machining, (B) the type of application, or (C) the means of attachment to the power source or load.
  • Consult the Crosby Hook Identification & Working Load Limit Chart (See below) for the minimum thread size for assigned Working Load Limits (WLL).†
  • Remove from service any Hook which has threads corroded more than 20% of the nut engaged length
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  • The most complete line of shank hoist hooks. Available 3/4 to 300 tons.
  • Available in carbon steel, alloy steel and bronze.
  • Quenched and Tempered.
  • Proper design, careful forging and preci-sion controlled quench and tempering give maximum strength without excessive weight and bulk.
  • Every Crosby Shank Hook has a pre-drilled cam which can be equipped with a latch.
  • Load Rating code stamped on each hook.
  • When ordering, the following information will help you select the hook you need:         Capacity (tonnage)
            Material (carbon, alloy or bronze)
            Shank diameter
            Shank length
           Throat opening
            Is latch kit required?
  • Hook threading is available—ask us!
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Working Load Limit Hook Dimensions  
Weight
Lbs.
Tons Identification Inches
Carbon Alloy Bronze 319C 319A 319B D F G H J K L M O P R T X** Y Z
3/4 1 .5 DC DA DB 2.86 1.25 .73 .81 .93 .63 5.14 .63 *.93 1.96 2.35 .97 .59 2.06 .69 .50
1 1-1/2 .6 FC FA FB 3.16 1.38 .84 .94 .97 .71 5.68 .71 *.97 2.22 2.59 .97 .66 2.25 .78 .75
1-1/2 2 1 GC GA GB 3.59 1.50 1.00 1.16 1.06 .88 6.35 .88 *1.06 2.44 2.76 1.03 .72 2.59 .88 1
2 3 1.4 HC HA HB 4.00 1.62 1.14 1.31 1.19 .94 7.14 .94 *1.16 2.78 3.16 1.16 .88 2.84 1.00 1.82
3 5 2 IC IA IB 4.84 2.00 1.44 1.63 1.50 1.31 8.63 1.13 *1.41 3.47 3.85 1.53 1.16 3.34 1.25 3.69
5 7 3-1/2 JC JA JB 6.28 2.50 1.82 2.06 1.78 1.66 10.43 1.44 *1.69 4.59 4.77 1.94 1.41 3.84 1.56 7.25
7-1/2 11 5 KC KA KB 7.54 3.00 2.26 2.63 2.41 1.88 12.52 1.63 *2.22 5.25 5.88 2.46 1.81 4.38 1.94 13.49
10 15 6-1/2 LC LA LB 8.34 3.25 2.60 2.94 2.62 2.19 13.47 1.94 *2.22 5.96 6.37 2.59 2.00 4.50 2.19 18
15 22 10 NC NA NB 10.34 4.25 3.01 3.50 3.41 2.69 16.65 2.38 *2.41 6.88 8.14 2.81 2.56 5.50 2.63 35.33
20 30 ------ OC OA ------ 13.62 5.00 3.62 4.62 4.00 3.00 23.09 ------ *3.19 8.78 9.44 3.44 3.12 10.00 3.12 72
20 30 ------ OC OA ------ 13.62 5.00 3.62 4.62 4.00 3.00 31.09 ------ 3.25 8.78 9.44 3.44 3.12 18.00 3.12 85.50
25 37 ------ PC PA ------ 14.06 5.38 4.56 5.00 4.25 3.62 32.12 ------ 3.25 11.38 12.56 3.88 4.00 15.00 4.00 134
25 37 ------ PC PA ------ 14.06 5.38 4.56 5.00 4.25 3.62 41.12 ------ 3.00 11.38 12.56 3.88 4.00 24.00 4.00 172
30 45 ------ SC SA ------ 15.44 6.00 5.06 5.50 4.75 3.72 34.12 ------ 3.00 12.63 14.00 4.75 4.00 15.00 4.00 182
30 45 ------ SC SA ------ 15.44 6.00 5.06 5.50 4.75 3.72 43.12 ------ 3.38 12.63 14.00 4.75 4.00 24.00 4.00 214
40 60 ------ TC TA ------ 18.50 7.00 6.00 6.50 5.75 4.44 36.06 ------ 3.38 14.81 15.50 5.69 4.50 14.50 4.50 268
40 60 ------ TC TA ------ 18.50 7.00 6.00 6.50 5.75 4.44 47.56 ------ 4.12 14.81 15.50 5.69 4.50 26.00 4.50 312
50 75 ------ UC UA ------ 20.62 7.75 6.69 7.25 6.50 4.81 41.16 ------ 4.12 16.53 19.38 6.00 5.00 15.00 5.00 390
50 75 ------ ------ UA ------ 20.62 7.75 6.69 7.25 6.50 4.81 49.16 ------ 5.38 16.53 19.38 6.00 5.00 23.00 5.00 426
------ 100 ------ ------ WA ------ 23.00 6.81 8.59 9.88 5.88 5.50 42.12 ------ 5.38 17.38 18.41 7.00 7.00 15.00 7.00 610
------ 100 ------ ------ WA ------ 23.00 6.81 8.59 9.88 5.88 5.50 48.12 ------ 4.50 17.38 18.41 7.00 7.00 21.00 7.00 675
------ 150 ------ ------ XA ------ 24.38 6.75 9.12 10.94 6.00 6.00 45.75 ------ 4.50 18.00 18.38 7.00 7.25 18.00 7.25 735
------ 200 ------ ------ YA ------ 26.69 7.50 9.75 11.81 6.60 7.00 50.50 ------ 5.00 19.25 20.50 8.00 8.00 20.00 8.00 1020
------ 300 ------ ------ ZA ------ 30.12 9.50 10.62 12.94 8.00 7.25 54.69 ------ 6.25 22.69 20.50 8.25 9.50 20.00 9.50 1390

*      Dimensions shown are for S-4320 Latch kits. Dimensions for sizes 20-ton carbon and larger are for PL Latch Kits.

**      Dimension before machining (as forged).

Note: Proof load is 2 times Working Load Limit. All carbon hooks—average straightening load (ultimate load) is 5 times Working Load Limit. Alloy eye hooks 1 ton through 22 ton—average straightening load (ultimate load) is 5 times Working Load Limit. Alloy eye hooks 30 tons through 60 tons-- average straightening load (ultimate load) is 4.5 times Working Load Limit. All Alloy shank hooks- average straightening load (ultimate load) is 4.5 times the Working Load Limit. All Bronze hooks—average straightening load (ultimate load) is 4 times Working Load Limit.