Aluminium screw jack
Centring hole dia. 12 mm. Spindle: Tempering steel, blued, Trapezoidal thread, self-locking with end stopbody. Base: Aluminium 400 N/mm2 tensile strength.
Safegards machine tables against damage (swarf do not penetrate into table face but into alu-base). Useful for all machine tool tables, surface plates and plane tables with precision faces. For larger clamping heights use centering pad no. 6442 and screw jacks no. 6400. Suitable pads are no. 6440, 6441, 6442, 6443/14 and 6445. Suitable base is no. 6442.
Do not adjust screw jack under load!