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Metric Plumbing Adapters

We have expanded our selection of metric adapter fittings and metric banjo bolts! More thread sizes, thread pitches, and metric to AN size combinations mean you're sure to find what you need.

Metric to 3AN and 4AN Steel Brake Adapter Fittings

Steel Adapters for High-Pressure Systems

Metric to 3AN and 4AN Aluminum Adapter Fittings

Aluminum Adapters for Moderate-Pressure Systems

Metric to 6AN Plumbing Adapters

Metric to 8AN Plumbing Adapters

Metric to 10AN Plumbing Adapters

Metric to 12AN Plumbing Adapters

10mm Metric to AN Plumbing Adapters & Banjo Bolts

12mm Metric to AN Plumbing Adapters & Banjo Bolts

14mm Metric to AN Plumbing Adapters & Banjo Bolts

16mm Metric to AN Plumbing Adapters & Banjo Bolts

18mm Metric to AN Plumbing Adapters & Banjo Bolts

20mm Metric to AN Plumbing Adapters

22mm Metric to AN Plumbing Adapters

24mm Metric to AN Plumbing Adapters

26mm Metric to AN Plumbing Adapters

30mm Metric to AN Plumbing Adapters

Sealing Washers & O-Rings

Plumbing Adapter Fittings

Recent Top Selling Products for this category
Male 16 x 1.5mm Metric Concave Seat to 6AN Male, Steel This steel adapter has 16x1.5mm male metric threads with a concave seat on one end and a 6AN male fitting (9/16-18, 37 degree flare) on the other end.	Soft Copper Crush Washer Our soft annealed Copper Crush Washers are ideal for sealing brake unions. Both the fitting and port must have adequately large flat sealing surfaces to ensure a reliable seal.	30mm Female Porsche to Male AN Adapter Fitting It is easy to connect an auxiliary oil cooler to a Porsche 911 engine with these female 30mm aluminum adapters which convert the Porsche fittings to male 12AN or 16AN.