Thread specifications: Metric thread, PG thread, G (PF) thread. (Threads can be customized)
Operating temperature: Static -40°C to 100°C, or can withstand heat up to 120°C instantaneously. Dynamic -20°C to 80°C, or can withstand heat up to 100°C instantaneously.
Product features:
Used for thread conversion, reducing the inconvenience of mismatching between the thread hole diameter and the installation hole.
Product materials:
Parts A, C, and F are made of copper alloy with nickel plating. Part E is made of UL-approved nylon PA66 (fire resistance grade UL94V - 2). Part D is made of nitrile or EPDM rubber. Part B is made of white high-temperature resistant silicone rubber.
Exploded view:

Technical parameters:
Metal threaded adapter | |||||
Metric thread | |||||
Hexagon | Outer diameter | Inner diameter | Thread length | Height | Wrench diameter |
M12/M16C | M16*1.5 | M12*1.5 | 6 | 10.5 | 18 |
M16/M20C | M20*1.5 | M16*1.5 | 6.5 | 10.5 | 24 |
M20/M25C | M25*1.5 | M20*1.5 | 7.5 | 11.5 | 30 |
M25/M32C | M32*1.5 | M25*1.5 | 8 | 12 | 39 |
M32/M40C | M40*1.5 | M32*1.5 | 9 | 13 | 43 |
M40/M50C | M50*1.5 | M40*1.5 | 10 | 16 | 57 |
M50/M63C | M63*1.5 | M50*1.5 | 10 | 17 | 64 |
German standard thread | |||||
Hexagon | Outer diameter | Inner diameter | Thread length | Height | Wrench diameter |
PG7/PG9C | PG9 | PG7 | 6 | 10.5 | 17 |
PG9/PG11C | PG11 | PG9 | 6.5 | 10.5 | 20 |
PG11/PG13.5C | PG13.5 | PG11 | 6.5 | 10.5 | 22 |
PG13.5/PG16C | PG16 | PG13.5 | 6.5 | 11 | 24 |
PG16/PG21C | PG21 | PG16 | 7.5 | 11 | 30 |
PA21/PG29C | PG29 | PG21 | 8 | 11 | 39 |
PG29H/PG36C | PG36 | PG29 | 9 | 13 | 50 |
PG36/PG42C | PG42 | PG36 | 10 | 15 | 57 |
PG42/PG48C | PG48 | PG42 | 10 | 16 | 64 |
British standard thread | |||||
Hexagon | Outer diameter | Inner diameter | Thread length | Height | Wrench diameter |
G1/2-G3/8C | G3/8 | G1/2 | 6 | 10.5 | 24 |
G1/2-G3/4C | G3/4 | G1/2 | 7.5 | 10.5 | 30 |
G3/4-G1C | G1 | G3/4 | 7.5 | 13 | 40 |
G1-G1 1/4C | G1 1/4 | G1 | 8 | 13 | 50 |









