Stainless Steel Stopper Screws

It is processed by STAR dual-spindle CNC centering machine, cylindrical cutter with 60°R0.4 corner is used for roughing the outer diameter of the thread, the outer diameter of the thread is precisely finished by the cylindrical cutter with 35°R0.2 corner, the thread is processed by the thread cutter, the thread burr is removed by the cylindrical cutter with 55°R0.2 corner and the thread cutter, the outer diameter is processed by the cylindrical cutter with 55°R0.2 corner. For the secondary spindle , the end face is refined by the cylindrical cutter with 55°R0.2 , 90°tungsten steel center drill used for centering, the tungsten steel bit is used for drilling, and the inner hexagon is processed by the rotary punch, Then remove the burr in the hole with tungsten steel drill.
Stopper Screw Is Also Called Stainless Steel Plug Hit Screw, Stainless Steel Contour Screw, Stainless Steel Shoulder Bolt.
Good Toughness, Wear Resistance And Heat Resistance, Suitable For Fine Mold, Can Significantly Improve Its Service Life, Especially The Fine Mold Thermal Shape Is Well Controlled, Suitable For High Temperature Operating Environment Of The Mold.
Stopper screw Composition Property Material: SCM435, Hardness: 33~38HRC. Our Company Can Produce Stainless Steel (303/304/316) Contour Screws.