Features: <br>Made of stainless steel material, which can provides strength and offers good corrosion resistance in many circumstances. <br>Positioning ball is also called ball head plunger or spring plunger. A load device (SLDs) consisting of a shell, spring, ball or cylinder. <br>Widely used in some medical equipment, lubrication equipment, pneumatic tools and other products. <br>Engineers often use it in mold, fixture, assembly and other work. <br>With the help of a certain pressure of the spring to promote the movement of the ball, so that the smooth operation of the equipment. <br> <br> <br>Specification: <br>Material: stainless steel <br>Size:M3*6/8/10/12/16/20(Optional) <br>Weight: Approx.5g~15g/0.2oz~0.5oz <br>Quantity: 20 PCS <br> <br>Package list: <br>20 x Spring Ball Plunger Screw<br>1、Made of stainless steel material, which can provides strength and offers good corrosion resistance in many circumstances. <br>2、Positioning ball is also called ball head plunger or spring plunger. A load device (SLDs) consisting of a shell, spring, ball or cylinder. <br>3、Widely used in some medical equipment, lubrication equipment, pneumatic tools and other products. <br>4、Engineers often use it in mold, fixture, assembly and other work. <br>5、With the help of a certain pressure of the spring to promote the movement of the ball, so that the smooth operation of the equipment.