three examples of Colorado Nuts
Size comparison of the 1 1/2 hex nut and the top flange of the I-beam
detail side view of the 1 1/2 colorado nut hex
side view of the 1 1/4 on the left and the 1 1/2 on the right
often the size stampings were crooked and off center
this stamp is a little straighter
comparison of the three items
1 1/2 and 1 1/4 colorado nuts
the “Colorado Nut” logo
Detail of the I-beam chock
on the large I-beam there is only a small logo stamped on the piece, no size stamp at all
