Ball plungers are used for securing an item in a closed position, and require force when needed to be opened. AFT Fasteners is your trusted ball plunger supplier and we carry a large selection including metric and inch sizes, steel and stainless steel, in both slotted and hexagon socket drives. We also offer a few different styles including ball plungers with a ceramic ball and recess/ceramic ball, as well as standard end pressure and heavy end pressure ball plungers. When it comes to ball plungers and other spring plungers, AFT has you covered. Can't find the exact plunger you need for your industrial applications, simply contact us today.