Conduit Metric Thread Adapters

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28 Products

NPT × Metric

Metric × PG

PG × Metric

Adapt metric, NPT, and PG conduit and cord grip threads to match knockout threads. A rubber O-ring seals out moisture.

Nylon adapters are lightweight and chemical resistant.

For technical drawings and 3-D models, click on a part number.

Conduit and Cord Grip Connection				Electrical Box Connection
Thread Size	Pipe Size	Thread Type	Gender	Thread Size	Thread Type	Gender		Each
Nickel-Plated Brass
NPT × Metric
__	1/2	NPT	Female	M16	Metric	Male	000000	000000
__	1/2	NPT	Female	M20	Metric	Male	000000	00000
__	1/2	NPT	Female	M25	Metric	Male	000000	00000
__	3/4	NPT	Female	M25	Metric	Male	000000	00000
__	1	NPT	Female	M32	Metric	Male	000000	00000
__	1 1/4	NPT	Female	M32	Metric	Male	000000	00000
Metric × PG
M16	__	Metric	Female	PG-9	PG	Male	0000000	0000
M20	__	Metric	Female	PG-11	PG	Male	0000000	0000
M20	__	Metric	Female	PG-13.5	PG	Male	0000000	0000
M25	__	Metric	Female	PG-16	PG	Male	0000000	00000
PG × Metric
PG-9	__	PG	Female	M16	Metric	Male	0000000	0000
PG-11	__	PG	Female	M20	Metric	Male	0000000	0000
PG-13.5	__	PG	Female	M20	Metric	Male	0000000	0000
PG-16	__	PG	Female	M20	Metric	Male	0000000	0000
PG-16	__	PG	Female	M25	Metric	Male	0000000	00000
PG-21	__	PG	Female	M25	Metric	Male	0000000	00000
PG-29	__	PG	Female	M32	Metric	Male	0000000	00000
Nylon Plastic
NPT × Metric
__	1/2	NPT	Female	M16	Metric	Male	0000000	0000
__	1/2	NPT	Female	M20	Metric	Male	0000000	0000
Metric × PG
M16	__	Metric	Female	PG-9	PG	Male	0000000	00000
M20	__	Metric	Female	PG-16	PG	Male	0000000	00000
M25	__	Metric	Female	PG-16	PG	Male	0000000	00000
M32	__	Metric	Female	PG-21	PG	Male	0000000	00000
M32	__	Metric	Female	PG-29	PG	Male	0000000	00000
PG × Metric
PG-13.5	__	PG	Female	M25	Metric	Male	0000000	00000
PG-21	__	PG	Female	M32	Metric	Male	0000000	00000
PG-29	__	PG	Female	M40	Metric	Male	0000000	00000
PG-36	__	PG	Female	M50	Metric	Male	0000000	00000