Standard Spring Plunger These plungers combine positive, controlled spring pressure with a long-travel plunger. Used extensively in fixtures, dies and assemblies. Available in black oxide or stainless steel with a hardened steel or nylon plunger. Steel, Standard End Force - Inch Steel, Standard End Force - Metric 303 Stainless, Standard End Force - Inch Brass & 316 Stainless Steel, Standard End Force - Inch Steel, Light End Force - Inch Steel, Light End Force - Metric 303 Stainless, Light End Force - Inch Brass & 316 Stainless Steel, Light End Force - Inch