Go to a hardware store, like a True Value or such. Bring an original screw. Use a nut, there, to determine size/thread. Probably 6-32. Use a steel washer if the head size diameter is important. May also buy & use rubber or fiber washers as antivibration layer. They sell these individually & should cost a nickel to a dime a piece. Lynn Tracy PCBUILD's List Owners: Bob Wright<[log in to unmask]> Drew Dunn<[log in to unmask]>