yofastener logo
1/4-20 x 6" Carriage Bolts A307 Grade 2 Zinc Plated "Coach Screws"

1/4-20 x 6" Carriage Bolts A307 Grade 2 Zinc Plated "Coach Screws"

A carriage bolt, coach bolt or round head square neckbolt is used through iron strengthening plates on either side of a wooden beam.It is commonplace though to use them on bare timber, the squared section givingenough grip to prevent rotation.