Basic part number = plated Boit with undriiied shank.
Add “D” after bask number for drilled shank bolt.
Dash number Indicates grip in .O625 increments (converted to three decimal places per ANSI Y14.5). See
sheets 4 and 5 for tabulations of grip and length dimensions. intermedlate or longer lengths may be specified
by use of whole dash number only.