This auction is for one high quality 2" to M48X0.75 adapter for telescope
Standard 48mm "M48 x 0.75" male thread on one side to connect to diagonal body
The female thread "M48X0.75" at the rear end to accept 2" astronomy filters
M48x0.75 Locking Mechanism: Features a M48x0.75 female thread rotation lock ring with precise 2 inch male thread compatibility; eliminating slippage and maintaining optical alignment during extended telescope use
Industrial-Grade Sealing Standard: Manufactured using precision CNC machining to achieve thread tolerance of ±0.01mm; The components are engineered to comply with the M42×0.75 thread standard, which specifies 42mm thread Diameter and 0.75mm thread pitch