This nut fits into the housing supplied and fits any 16mm, 4mm pitch lead screw. The lead screw can be machined or not machined note the lead screw is not included in the price.
The grub screw supplied allows you to trim thw anti-backlash to suit your requirements.
T16 / Tr16x4 Anti-Backlash Nut and Aluminium Housing
Trapezoidal nut 16x4 Right hand thread with aluminum housing with 2 mounting threads.
Length housing: 28.3mm
Total length: 32mm
Width: 54mm (W)
Height: 41mm (H)
Distance shaft center - mounting surface: 21mm (h)
Thread: M6 x 12 (S x I)
Thread distance: 40mm (J)
Material housing: natural anodised aluminum