The PT-27 part replacement kit contains common wear parts designed for the Simpson Strong-Tie® PT-27. The versatile PT-27 is a semi-automatic and fast-cycling fastening tool engineered for continuous use. Repairs of parts with damage exceeding normal wear should be completed by an authorized repair facility. Key Features Parts compatible with Simpson Strong-Tie PT-27 Product Includes 5 shear clips — part no. PT-301011 1 annular spring — part no. PT-301014 1 piston stop — part no. PT-301012 3 ball bearings — part no. PT-301013 1 piston — part no. PT-301903 2 piston rings — part no. PT-301208 1 nosepiece — part no. PT-301010