Hook bolts
Hook bolts are widely used to attach lighter rails, up to 85 lbs, to channels or crane rail beams. They have threaded features for lateral adjustment and come with hex nuts and lockwashers. GNEE specializes in the professional production of various railway bolts and also offers customized solutions. Feel free to inquire for more information.
Hook bolts Specification
|
Finish |
Hot Dip Galvanized and Plain |
|
Material Grade |
Low Carbon Steel C1008-C1018 and ASTM F1554-Grade |
|
Diameter Thread Pitch Sizes Offered |
1/2"-13, 5/8"-11, 3/4"-10, 7/8"-9, 1"-8, 1"-1/4-7 |
|
Lengths Offered |
6", 8", 10", 12", 14", 15", 16", 18", 20", 21", 24", 30", 36", 42", 48" |
Hook bolts are usually drilled in pairs, positioned four inches apart, every two feet. By default, unless stated otherwise, the holes are drilled 1/8 inch larger than the diameter of the hook bolt. The spacing of these holes adheres to the specifications outlined in the table below. It's noteworthy that the diameter of the hook bolts typically matches that of the splice bars, and the hole elevation is the same as that for splice bar holes. This drilling pattern ensures proper alignment and secure attachment in rail installation.
|
Rail Section and Size |
Hook Bolt Diameter |
|
12# ASCE – 25# ASCE |
1/2" |
|
30# ASCE |
5/8" |
|
40# ASCE – 60# ASCE |
3/4" |
|
80# ASCE – 100# AREA |
7/8" |
|
104# Crane Rail – 175# Crane Rail |
1" |
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