A T2 thread, also written T-2, has a diameter of 42mm and a thread pitch of 0.75mm. It is also sometimes written as M42x0.75.
The low pitch distinguishes it from other M42 threads.
ZWO
T2 / C mount adapter
$ 26.90
ready for shipping in 24
h
Baader
T2/1.25" ultrashort adapter
$ 34.90
ready for shipping in 1-2
weeks
ASToptics
M42 (FEMALE) TO M42 (FEMALE) adapter, 10MM
$ 26.90
ready for shipping in 24
h
Baader
Adapter Eyepiece clamp ClickLock 1 ¼"/T-2i
$ 95.00
ready for shipping in 1-2
weeks
ASToptics
Easy-Grip Twist-Lock adapter (M42 to 1.25")
( 5 / 5 )
$ 75.00
ready for shipping in 24
h
ASToptics
M42 MALE TO 1.25"/ T2 ADAPTER
$ 64.00
ready for shipping in 24
h
Omegon
Adapter Visual T male to 1.25” female with set screw
$ 34.90
ready for shipping in 24
h
PegasusAstro
Adapter M54 Male - M48 Female
$ 43.90
ready for shipping in 1-2
weeks
Omegon
adapter ring M48-T2 0mm
$ 17.90
ready for shipping in 3-5
weeks
PegasusAstro
Adapter M54 Male - M42 Male
$ 43.90
ready for shipping in 1-2
weeks
TS Optics
T2/SC adapter
$ 23.90
ready for shipping in 3-7
days
Baader
Adapter T-2 locking ring with T-2 inner thread (55mm outer diameter)
$ 26.90
ready for shipping in 1-2
weeks
Baader
Adapter Focusing T-2 eyepiece clamp 1 1/4 "
$ 49.90
Product can be shipped as of 06.06.2025
Askar
Adapter T2/M48
$ 55.00
ready for shipping in 3-5
weeks