Square Head Set Screw

Square Head Set Screw
      Buyers Products Square Head Set Screw comes in two sizes to fit your drive shaft set screw needs. It's sold in multiples of 100.
    14 Square Head Set Screw 1/4-20 x 3/4 Inch - No Hole
    34 Square Head Set Screw 3/8-16 x 3/4 Inch With 3/32 Inch Diameter Hole