... plunger,ball spring plunger,pin plunger,Push Fit Plungers Material: Steel Body: 12L14 Steel Stainless Steel Body: 303 Stainless Steel Ball:440 ... , stainless steel or brass Ball and plunger are steel, stainless steel or non-marring nylon Spring is piano wire or stainless ... place Custom sizes, forces and materials available upon request spring plunger,ball spring plunger,pin plunger,Push Fit Plungers