National stock numbers that we have updated recently with new information.
thread length: 0.25 inches first end outer radius: 0.041 inches to 0.049 inches
style designator: number 60 irregular shape from fiig a03200 cross-sectional shape style: number195 irregular shape from fiig a03200
steel overall outside diameter: 3.672 inches to 3.702 inches
iron fastener length: 1.813 inches to 1.875 inches
iron material accommodated thickness: 0.069 inches to 0.131 inches
aluminum material accommodated thickness: 0.031 inches to 0.062 inches
steel material hardness rating 36 rockwell c minimum shank and 40 rockwell c maximum shank