The two screws differ from each other in the way that they create the threads. Steel is often used in applications where strength is the primary consideration Pan head has a flat top and short vertical sides with a rounded top edge All-in-one bicycle cleaning solution ... STA-BIL® SPORT Bike Wash is a staple for anyone who needs to do a deep clean of dirt, grit, and gunk on their bicycle In the Box: (1) Small Parts 0608LTPB Steel Thread Rolling Screw for Plastic, Black Oxide Finish, Pan Head, Star Drive, #6-19 Thread Size, 1/2" Length (Pack of... 8 x 1/2 Thread Forming Screws for Plastics (48-2) / Six-Lobe (Torx®) / Pan Head/Steel/Black Oxide / 10,000 Pc. Carton Thread cutting and thread rolling screws, two types of self-tapping screws, are threaded fasteners that create a mating thread in the wall of a hole. Black oxide finish offers mild corrosion resistance and lubricity Black Plastic String Small Parts 0408LTFB Steel Thread Rolling Screw For Ethiopia Plastic Screw Thread rolling screws, also called thread forming screws, do not remove material but instead press against the wall of the hole to displace the material and form the threads. Thread rolling screw recommended for use in plastic The pan head has a flat top and short vertical sides with a rounded top edge. The steel thread rolling screw for use in plastic has a black oxide finish and a pan head with a star drive. Thread cutting screws cut the wall of the hole to create the thread, creating material chips that need to be cleared away from the hole to prevent clogging.
