Hex Bolts 10.9 M18X1.5 Extra Fine DIN 960/961 - BelMetric
Amazon.com: AC PERFORMANCE Aluminum M18x1.5 to 5/8 barb Fuel Oil Pump Inlet outlet fuel regulator Fitting, Male Metric to outer diameter 15.88mm 5/8" barb push on fitting with Washer, Black : Industrial
Thread Adapter M18x1.5 RH to 5/8×24 – Silencer Central