Custom Large Metric 12.9 Socket Head Bolts – M90 X 495MM
These are custom large metric class 12.9 socket head bolts manufactured domestically for our utilities customer at 92 pieces. M90 X 4 thread was incorporated at thread length of 120MM. The shoulder dimeter was set to 84.3MM at a length of 290MM.
The 75MM socket drive was broached with a 10MM diameter hole drilled in the center to a depth of 385″ from the top of the head.