210071

General Characteristics Item Description: Steel, aisi C1117, 2.27 in. O/a lg, hex head, 0.8650/0.8775 in. W across flats, 0.617/0.625 in. dia 1ST step under head, 0.625-18 nf class 2 thd on 1ST step, 0.508/0.512 in. dia 2ND step under head, 0.38 in. dia undercut, 0.4996/0.5000 in. dia end, 0.625-18 nf class 2B thd in hex end, 0.390 in. dia 1ST bore under head, 0.373/0.376 in. dia 2ND bore, 0.1872/0.1877 in. dia end bore, 4 transverse holes thru 2ND bore, 0.094 in. dia holes, 2 transverse holes in end bore, 0.1225/0.1255 in. dia holes