EXHIBIT 21 SUBSIDIARIES OF THE COMPANY NAME JURISDICTION OF INCORPORATION - ---- ----------------------------- Lawson Products, Inc. New Jersey Lawson Products, Inc. Texas Lawson Products, Inc. Georgia Lawson Products, Inc. Nevada Lawson Products, Inc. (Ontario) Ontario, Canada Lawson Products Limited England LPI Holdings, Inc. Illinois Lawson Products de Mexico S.A. de C.V. Mexico Drummond American Corporation Illinois Cronatron Welding Systems, Inc. North Carolina Assembly Component Systems, Inc. Illinois Automatic Screw Machine Products Company, Inc.* Alabama LP Service Co. Illinois C.B. Lynn Company Illinois ACS/SIMCO, Inc.* Illinois *subsidiary of Assembly Component Systems, Inc.