Features:_x000D_ _x000D_ Designed for adjusting the friction between the formwork and the nylon sleeve, the mold can be closed about 50,000 times after about 1/4 turn. _x000D_ Using this tool can make the mould device easy and simple to take off. _x000D_ The device can also be used on the workpiece of small nozzle plate, middle plate or secondary ejection small nozzle or slide seat. _x000D_ For mold weight below 100KG, use 12D-4 pieces, 16D-4 pieces for 500KG and 20D-4 pieces for 1000KG. _x000D_ Good wear resistance and heat resistance. _x000D_ _x000D_ Specification:_x000D_ Material: Nylon resin & High strength alloy steel_x000D_ Weight: 65~211g/2.3~7.4oz_x000D_ Model: D12 M6 screw thread, D12 M6 screw thread (L), D13 M6 screw thread, D14 M8 screw thread, D16 M8 screw thread (Optional)_x000D_ _x000D_ Package List:_x000D_ 10 x Nylon Lock Shoulder Screw_x000D_ _x000D_ Note:_x000D_ Although the heat-resisting temperature of nylon sleeve is 150, it is continuously affected by the locking stress of cone bolt, which leads to the decrease of durability of nylon sleeve, and the normal working temperature is below 80.