Technical details

• The basic designation is an alloy steel hex-head shear bolt in the 180 ksi design series.
• The size specifies a 0.5000-20 UNJF external thread with class 3A fit.
• Grip dash 16 specifies a nominal grip of 1.0000 in with a tolerance of plus or minus 0.010 in.
• The dated dimensions give an under-head length of 1.735 in with a tolerance of plus or minus 0.015 in.
• The designation specifies an undrilled head and shank.
• The alloy steel configuration specifies Type II, Class 2 cadmium plating.
• The dated drawing gives a head width across flats of 0.741 to 0.752 in.