Robertson Screws
Screws with a square hole. Strictly a Canadian device, you won't find this type of screw in the USA.
Would you like to view another Canadianism? Try one of these...
Drop the gloves * Towney * Keener * Sir John A. * River City *
Screws with a square hole. Strictly a Canadian device, you won't find this type of screw in the USA.
Would you like to view another Canadianism? Try one of these...
Drop the gloves * Towney * Keener * Sir John A. * River City *