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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.

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Plumbing Adapter Fittings

Recent Top Selling Products for this category

30mm Male Porsche to Male AN Adapter Fitting
30mm Male Porsche to Male AN Adapter Fitting

This 30mm male to male aluminum adapter converts Porsche 911 fittings to male 12AN or 16AN, making it easy to connect an auxiliary oil cooler to a Porsche 911 engine.

Aluminum Crush Washers, package of 5
Aluminum Crush Washers, package of 5

Aluminum crush washers are typically used in the fuel system on aluminum banjo fittings and carburetor adapters. All sizes are sold in packs of 5 washers.

Female 18 x 1.5mm Metric Convex Seat to 8AN Male, Steel
Female 18 x 1.5mm Metric Convex Seat to 8AN Male, Steel

This female 18 x 1.5mm steel fitting has a convex seat on the female metric end to seal against a concave male fitting. The fitting allows the female threads to swivel without damaging the seat.