Hebei Haihao Group offers A194 2H Heavy Hex Nuts drilled to accept commonly used Tommy Bars to be used with extra length oilfield bolts, for any bolting specification and temperature class.Nuts have Tommy Bar holes (1 drilled in each face of the hex flats),for the purpose of hand tightening the nut through the window of a hydraulic bolt tensioning device.
Hex Nuts With Tommy Bar Holes
Hex Nuts with Tommy Bar Hole Drawing
Tommy Bar Hole Dimensions
