6 x 5/8" (16mm) Thread Forming Screws for Plastics 50 Pack – Repkord.com
Tri-Lobular Thread Forming Screws | Screws for Plastic
Small Parts 0410LTPB Steel Thread Rolling Screw for Plastic, Black Oxide Finish, Pan Head, Star Drive, #4-20 Thread Size, 5/8" Length (Pack of 100): Thread Forming And Cutting Screws: Amazon.com: Industrial &