2) fit Schlauch ID 8mm/10mm Stacheldraht x M8 M10 M12 M14 M16

2pcs Adapter for 5/8-11 Male Thread to 1/2 inch Male Thread Fit for CNC Machine

M5 M6 M8 M10 M12 M14 M16 304 Thread Inserts Stainless Steel Threaded Repair Insert Assortment Kit Coiled Wire Helical Screw with Plastic Case

ID Rohr 6mm - 25mm Schlauch Barb Schott Messing Stacheldraht Rohr Rohr Fitting Koppler Stecker Adapter Für Kraftstoff gas Wasser Kupfer

FZJDSD 5 Pcs Thread Adapters Sleeve Reducing Nut for M10 10MM Male to M8 8MM Female - REDUCERS Female Screw Sleeve Conversion Nut: : Industrial & Scientific

4mm 6mm 8mm 10mm 12mm 14mm 16mm 19mm 25mm Schlauch Widerhaken Schott Messing Stacheldraht Rohr verschraubung Kupplungs verbinder Adapter - AliExpress

1522 Series 8mm ID Spacer (10mm OD, 12mm Length) - 4 Pack - goBILDA

2) m10 M12 M14 M16 Metric Weibliche-Fit Rohr Barbed ID 4/6/8/10/12mm Hex Messing Fitting Adapter Stecker - AliExpress

Uxcell ABS Round Spacer Assortment Kit ID 8.2mm OD 14mm, 8 Sizes Standoff, 160pcs | Harfington

1522 Series 8mm ID Spacer (10mm OD, 12mm Length) - 4 Pack - goBILDA

FZJDSD 5 Pcs Thread Adapters Sleeve Reducing Nut for M10 10MM Male to M8 8MM Female - REDUCERS Female Screw Sleeve Conversion Nut: : Industrial & Scientific

M5 M6 M8 M10 M12 M14 M16 304 Thread Inserts Stainless Steel Threaded Repair Insert Assortment Kit Coiled Wire Helical Screw with Plastic Case

4mm 6mm 8mm 10mm 12mm 14mm 16mm 19mm 25mm Schlauch Widerhaken Schott Messing Stacheldraht Rohr verschraubung Kupplungs verbinder Adapter - AliExpress