These cup fittings enable the vacuum cups shown in this catalogue to be mounted to machinery and other apparatus. All male threads utilize the Vacuforce® tri thread which is a universal thread form suitable for connection to female NPT, NPSF, BSPT and BSPP threads. All fittings are hard anodized and can be used with all VFB, VFBL, VFDB and VFF vacuum cups. Vacuforce® Cup Fitting, Type E, Series: VFCF, For Use With: VFB50-2, VFBL50-2, VFF50-2 and VFBL40-2 Vacuum Suction Cups, M5 x 1/4 in Universal Threaded, Aluminum, Hard Anodized