Attributes . CS68S: 3/8 in. -16x1 in. SS Hex Head Cap Screw, Elbow or Splice Plate, LW6S: 3/8 in. -16 SS Lock Washer, N616S: 3/8 in. -16 SS Hex Nut, W6S: 3/8 in. -18 SS Flat Washer . Names