Shop › Corner for 1-1/4" Speed-Rail Image 1 of 1 Corner for 1-1/4" Speed-Rail Sale Price: $103.50 Original Price: $114.93 010-2022-BTWelded fitting used to create a 90º corner on a frame using 1-1/4" schedule 40 aluminum. Quantity: Add To Cart Added! 010-2022-BTWelded fitting used to create a 90º corner on a frame using 1-1/4" schedule 40 aluminum.