WS523

Product Comment

Top flange has 12 holes, 7 tapped 5/16″ N.C. threads and 5 drilled clearance
for 5/16″ bolts. Bottom flange has 9 holes, 4 tapped 5/16″ N.C. threads and
5 drilled clearance for 5/16″ bolts. Five 1/4″ N.C. threaded holes on each
side of frame. Sixteen holes on back of channel, 9 holes are 3/8″ N.C.
threads and 7 are 1/4″ N.C. threads. Two notches in side of rail. NOTE: Side
frames are not interchangeable. Order left for driver