Square neck of the round head carriage bolt makes the bolt self-locking during tightening, when mated with a square hole. Offered in a variety of sizes. Commonly referred to as a coach bolt.
  • Full 1″ thread length
  • Includes one square nut
  • Rated tensile strength is 1,800 lbs.
  • Galvanized per CSA G164-M
  • Manufactured in compliance with Canadian CSA C83-96 specification and Charpy level 1 impact properties with average minimum energy absorption of 20 joules when tested at -20 degrees C per ASTM A370


Coating Galvanized, CSA G164-M
Material Steel
Tensile Strength 1800 lb.


Diameter 0.25 in
Diameter (Fraction) 1/4 in
Length 2.00 in
Length – Threaded Area 2

Certifications and Compliance

Industry Standard(s) CSA C83.66