Crosby

Crosby S-319 / S-319N Shank Hook

High-strength quenched and tempered Crosby shank hook.

Product Details

  • Available 3/4 to 300 metric tons.
  • Hook Identification code marked into each hook.
  • All carbon and alloy hooks are quenched and tempered.
  • Quenched & Tempered.
  • Available in carbon steel, alloy steel, and bronze.
  • Proper design, careful forging, and precision controlled quench and tempering give maximum strength without excessive weight and bulk.
  • Type Approval and certification in accordance with ABS 2006 Steel Vessel Rules 1-1-17.7, and ABS Guide for Certification of Cranes.
  • Every Crosby Shank Hook has a pre-drilled cam which can be equipped with a latch.
  • Hooks incorporate QUIC-CHECK deformation and angle indicators.
  • Chemical analysis and tensile tests performed on each PIC to verify chemistry and mechanical properties.
Working Load Limit (t) Hook ID Code Shank Hooks Stock No. Shank Length Weight Each (lb) Rep. Latch Kits
Carbon Alloy Bronze Carbon S-319C S-319CN Alloy S-319A S-319AN Bronze S-319BN S-4320 Stock No. PL Stock No. SS-4055 Stock No.
0.75 1 .5 †D  1028505  1028701  1028900 Std. .50 1096325 – –
1 1.5 .6 †F  1028514  1028710  1028909 Std. .75 1096374 – –
1.5 2 1 †G  1028523  1028723  1028918 Std. 1.00 1096421 – –
2 3 1.4 †H  1028532  1028732  1028927 Std. 1.82 1096468 – –
3 5 2 †I  1028541  1028741  1028936 Std. 3.69 1096515 1092000 –
5 7 3.5 †J  1028550  1028750  1028945 Std. 7.25 1096562 1092001 –
7.5 11 5 †K  1028563  1028765  1028954 Std. 13.4 1096609 1092002 –
10 15 6.5 †L  1028590  1028792  1028981 Std. 21.9 1096657 1092003 –
15 22 10 †N  1028599  1028801  1028990 Std. 38.4 1096704 1092004 –
20 30 – O  1024386  1024803 – Std. 72 – 1093716 1090161
20 30 – O  1024402  1024821 – Long 85 – 1093716 1090161
25 37 – P  1024420  1024849 – Std. 134 – 1093717 1090189
25 37 – P  1024448  1024867 – Long 172 – 1093717 1090189
30 45 – S  1024466  1024885 – Std. 182 – 1093718 1090189
30 45 – S  1024484  1024901 – Long 214 – 1093718 1090189
40 60 – T  1024509  1024929 – Std. 268 – 1093719 1090205
40 60 – T  1024545  1024965 – Long 312 – 1093719 1090205
50 75 – U  1024563  1024983 – Std. 390 – 1093720 –
50 75 – U  1024581  1025009 – Long 426 – 1093720 –
– 100 – W –  1025027 – Std. 610 – 1093721 –
– 100 – W –  1025045 – Long 675 – 1093721 –
– 150 – X –  1025063 – Std. 735 – 1093721 –
– 200 – Y –  1025081 – Std. 1020 – 1093723 –
– 300 – Z –  1025090 – Std. 1390 – 1093724 –

Maximum allowable Proof Load is 2 Times Working Load Limit. All carbon hooks designed with a 5:1 design factor. All alloy hooks 1 through 22t designed with a 4.5:1 design factor. All alloy hooks 30t and larger designed with a 4:1 design factor. All bronze hooks designed with a 4:1 design factor. †New 319N style hook. ‡See column “Y” on following page for actual length.

Rough as-forged dimension. Shank will not machine to this dimension. Please refer to the warnings & applications section for recommended shank diameter when machining. *Deformation indicators. †3/4t carbon through 22t alloy dimensions shown are for S-4320 Latch Kits. Dimensions for “O” frame size and larger are for PL Latch Kits. ††Dimensions are for PL-N latch kits. For the purpose of calculating D/d ratio, utilize dimension M.