Tube clamps are for the SkyWatcher 200pds.

The clamps are designed for the TS Losmandy 356mm (below) and the TS Vixen dovetail 335mm (top). In addition, 4xM6 fusion thread, 16xM4 fusion thread, 4xM6x40mm cylinder head screws, 16xM4x10mm countersunk head screws, 8xM8x16mm cylinder head screws and 2xM6x16mm cylinder head screws are required.

New threads must also be cut into both dovetails.