Interkal Bleacher Seat Nose Beam Shoulder Bolt 2-3/4" x 3/8"-16 Thread. The bolt has a shoulder collar of 1/2" diameter x 1-1/4", the thread length is 1-1/8". Used with seat modules to bolt the chair to the frame of the bleachers.
Interkal riser combo roller & bracket. The black plastic roller dimension is 1-1/4" diameter by 1-5/16" by 1/2" center hole. The plate is 1-7/8" by 3-3/4" long and the two hole dimensions are 5/16". Used with Interkal bleachers known as 176383.
