Body and Spindle : Medium carbon Steel,Heat treated,blackened.
Spindal Threads : Trapezoidal self locking with end stop Body.

screw jack with steel body-screw_jack_with_steel_body_01 screw jack with steel body-screw_jack_with_steel_body_02
 Type  Range
H1 H2		  Base
Dia-Do		  Base
Dia-D1		  Static-Load
Max-Kn		  Wt
Kg
BESJ-40  45-50  32  32  12  0.230
BESJ-50 50-70 50 50 60 0.600
BESJ-70 70-100 50 50 60 0.800
BESJ-100 100-140 70 65 100 2.500
BESJ-140 140-210 80 70 165 4.560
BESJ-190 190-300 98 80 350 9.100