Vacuum Suction Cup Level CompensatorsVacuum Cup Extensions SLSA-1 SeriesPart Number: VX18M5-200-51 Specifications for SLSA-1 Series Vacuum Cup Extension Assemblies (Group 1 and 2 Fittings): Part No. Connection Thread Size Height in. (mm) Required Panel Hole Dia. in. (mm) Maximum Panel Thickness in. (mm) Weight (In Grams) Adjustable Brackets for Suspensions VX18M5-200-51 M5 – female 10-32 UNF – G1/8″ male 2.00 (51) 0.38 (9.5) 1.56 (39.6) 52