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Hook Bolts

Hook Bolt Drawing Hook bolts are very commonly used to attach lighter rails (usually up to 85 lbs.) to channels or directly onto a crane rail beam. They are usually threaded to allow up to one half inch lateral adjustment in either direction, and come complete with hex nuts and lock washers. When ordering, specify rail section, bolt diameter, and the size and weight of supporting beam or channel.

Hook bolts are typically drilled in pairs four inches apart every two feet. Unless otherwise specified, we drill these holes 1/8 inch larger than the diameter of the hook bolt, and the spacing will be as shown in the table below.

Hook Bolt Hole Spacing
Remaining Holes on 24" centers

             
Hook Bolt Spacing (See Tee Rail Data Sheets for Rail End Drilling)
Rail Weight A B C D E No. Holes Per Rail
12-lb, 20-lb, 25-lb, 30-lb 30' 14" 22" 12" 4" 30
30-lb, 40-lb 20' 14" 22" 12" 4" 20
40-lb, 60-lb 30' 14" 22" 12" 4" 30
40-lb, 60-lb 40' 14" 22" 12" 4" 40
60-lb, 80-lb 33' 18" 24" 16" 4" 32
80-lb, 85-lb 39' 18" 24" 16" 4" 38
 

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