TS-Optics M8 x 0.75 Brass Knurled Screw
Brass Knurled Screw - Used to hold the 360° rotation of many focusers
♦ Thread: D=8 mm with 0.75 mm pitch
♦ Thread length: 10.5mm
♦ Rounded brass head
TS-Optics knurled screws for secondary mirror collimation
Adjust the secondary mirror without tools, precisely and without the risk of a key or screwdriver falling on the primary mirror, for example.
Compared with normal small collimation screws, TS knurled screws have a number of advantages, such as flat milling surface. If there is a burr on the screw, it will dig into the aluminum secondary mirror mount. The collimation accuracy decreases. Also, the secondary mirror can twist during collimation. Therefore, a precise adjustment is impossible.
The screws fit, among other things, on all Newtonian telescopes from GSO, TS-Optics or Skywatcher and on all telescopes where the secondary mirror is fitted with M4 screws.
Especificaciones:
| Thread: | M8x0.75 mm |
| Length of thread: | 10.5 mm |
| Total length of the screw 19 mm: | |
| Material: | Brass |
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