0000920371-00-000020 4 1 20000531 20000601 SIMPSON MANUFACTURING CO INC /CA/ 0000920371 3420 943196943 DE 1231 4 34 001-13429 647970 4637 CHABOT DR STE 200 PLEASANTON CA 94588 5106099912 4637 CHABOT DR STE 200 PLEASANTON CA 94588 LOURAS PETER N 0001087158 DIRECTOR 4 4637 CHABOT DRIVE, SUITE 200 PLEASANTON CA 94588 4637 CHABOT DRIVE, SUITE 200 PLEASANTON CA 94588 4 1 0001.txt FORM 4 - MAY 2000