part 99126700 Screw M4 x 5 UNI5929 S.S. Interpump code 99126700 Details Interpump number99126700 DescriptionScrew M4 x 5 UNI5929 S.S. ItalianVite M4x5 5929Qty per pump1 Fits these pumps Interpump 53 E1 series 3 E1D1835E1E1811E1E2111 Interpump 53 ET1 brass series 2 ET1D1835ET1E1811