The SM1 thread adapter from LBTEK features SM1 male and a limit hole, designed to accommodate cylindrical optical components with diameters of Ø8 mm, Ø9 mm, Ø10 mm, Ø11 mm, Ø12 mm, Ø12.7 mm, Ø15 mm, Ø16 mm, and Ø18 mm. It can be integrated into SM1 thread mounts, coaxial systems, and lens tube. Models TAD-08 and TAD-09 include one set screw on the side, while TAD-10, TAD-11, TAD-12, TAD-12.7, TAD-15, TAD-16, and TAD-18 feature two set screws each to secure optical components within the limit hole. The grooved limit hole establishes dual-line contact with the cylindrical body, preventing rotation and slippage while ensuring precise alignment between the secured component and the optical axis. LBTEK offers custom services for special surface treatments, dimensions, and thread specifications; please contact technical support for specific requirements. LBTEK also offers customerization for special surface treatments, lengths, sizes. For specific requirements, please contact LBTEK Technical Support.