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dont wait till you need them
Verified purchase: Yes | Condition: New
great spare parts
Verified purchase: Yes | Condition: New
These screw sets are packed and designed to repair plastic and die-cast radio control car trans-axles. I am a part fabrication and repair facility doing the most unusual repair to classic and antique automobiles. These screws are extremely hard, and mostly I drive them into plastic. HOWEVER, I occasionally grind a single angular facet on about three threads on the tip. Then they become self-tapping screws and easily cut their own threads into Die Cast and aluminum. Being a patient machinist, I also have successfully threaded them into stainless steel. It sometimes takes one used as a tap, and another to follow- yet have threaded them into and through 1/4" steel dowel after cutting a hole with a #60 wire drill ( .040". ) l have used them as a structural "Grab" on broken Bakelite parts- wired heads together, and filled with methyl Methacrylate plastic to make unseen structural repairs. They are driven by a good 00, or 000 Philips jewelers screwdriver. Some are hex-drive, about .6mm, I think. If you are a hobbyist, OR professional repair shop like me, these are a GREAT fastening system.Read full review
Verified purchase: Yes | Condition: New