Hook Bolt Specifications

Specifications required when ordering hook bolts:

  • Rail Size
  • Size of I-beam or cap channel on which the rail sits. Minimum information required includes the width of the beam or channel surface and the length of the flange (leg).
  • Hook Bolt diameter (generally determined by rail size unless specifically requested)
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″

Diagrams of wide flange and channel cap hook bolts with side view and top view showing standard punching spacing
Wide Flange and Channel Cap Hook Bolts