ANVER Vacuum Cups and Suction Cups Model: 1/8″ Male Thread Fitting Part Number: OCF1-18M-NPT Aluminum Fitting Vacuum Fitting Part No. Connection Thread Size L Height Added to Assembly in. (mm) Item Weight oz. (grams) OCF1-18M-NPT 1/8″ male 0.21 (5.3) 0.106 (3)