Specifications: Pin: 0.086 Dia. x 4 Pin Hole: 0.094 Spring: 0.217 Dia. x 3 Spring Hole: 0.221 Screw: 1/4-28 x 1/4 Each UNIKIX(tm) Spring Pin consists of a hardened steel rod soldered to a compression spring. A UNIKIX(tm) Spring Pin can eject a sheet-metal part after cut-off. This can prevent the sheet metal from being held against the stripper by stamping-fluid surface tension. UNIKIX(tm) Spring Pins can prevent slug pulling. This can prevent the slugs from being pulled upward out of the matrix when the die opens. The spring-pins eject the slugs by overcoming the stamping-fluid surface tension which can cause the slugs to adhere to the ends of the punches. A UNIKIX(tm) Spring Pin can also delay the actuation of an electrical switch.