Thread data

Metric thread chart and dimensions

Metric straight thread ports, sealed with an O ring stud or a sealing washer. Used on European and Asian hydraulics, automotive sensors and engine plumbing.

Standard: ISO 261, ISO 6149
Seals by: O ring stud or sealing washer
Used for: Automotive and DIN hydraulics
Sizes: M10 to M48

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Metric dimensions

The dimensions we machine to. Pressure values are nominal working ratings for steel at room temperature.

Size	Male	Female	Pitch	Major dia	Pitch dia	Minor dia, male	Minor dia, female	Stud thread length	O ring, ISO 6149	Tap drill	Rated to
M10	M10×1-6g	M10×1-6H	1 mm	10.00 mm	9.35 mm	8.77 mm	8.92 mm	8.00 mm	8.1 × 1.6 mm	9.0 mm	5,800 psi
M12	M12×1.5-6g	M12×1.5-6H	1.5 mm	12.00 mm	11.03 mm	10.16 mm	10.38 mm	12.00 mm	9.3 × 2.2 mm	10.5 mm	5,800 psi
M14	M14×1.5-6g	M14×1.5-6H	1.5 mm	14.00 mm	13.03 mm	12.16 mm	12.38 mm	12.00 mm	11.3 × 2.2 mm	12.5 mm	5,800 psi
M16	M16×1.5-6g	M16×1.5-6H	1.5 mm	16.00 mm	15.03 mm	14.16 mm	14.38 mm	12.00 mm	13.3 × 2.2 mm	14.5 mm	5,800 psi
M18	M18×1.5-6g	M18×1.5-6H	1.5 mm	18.00 mm	17.03 mm	16.16 mm	16.38 mm	12.00 mm	15.3 × 2.2 mm	16.5 mm	5,800 psi
M20	M20×1.5-6g	M20×1.5-6H	1.5 mm	20.00 mm	19.03 mm	18.16 mm	18.38 mm	14.00 mm	17.3 × 2.2 mm	18.5 mm	5,800 psi
M22	M22×1.5-6g	M22×1.5-6H	1.5 mm	22.00 mm	21.03 mm	20.16 mm	20.38 mm	14.00 mm	19.3 × 2.2 mm	20.5 mm	5,800 psi
M27	M27×2-6g	M27×2-6H	2 mm	27.00 mm	25.70 mm	24.55 mm	24.83 mm	16.00 mm	23.6 × 2.9 mm	25.0 mm	5,800 psi
M33	M33×2-6g	M33×2-6H	2 mm	33.00 mm	31.70 mm	30.55 mm	30.83 mm	18.00 mm	29.6 × 2.9 mm	31.0 mm	4,568 psi
M42	M42×2-6g	M42×2-6H	2 mm	42.00 mm	40.70 mm	39.55 mm	39.83 mm	20.00 mm	38.6 × 2.9 mm	40.0 mm	3,625 psi
M48	M48×2-6g	M48×2-6H	2 mm	48.00 mm	46.70 mm	45.55 mm	45.83 mm	22.00 mm	44.6 × 2.9 mm	46.0 mm	3,625 psi

Adapters with Metric

NPT to Metric adapters JIC to Metric adapters ORB to Metric adapters BSPP to Metric adapters

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