Our self-tapping screws are made of medium carbon steel materials, and can be used for a long time. Smooth surface, excellent workmanship, strong and , and . Small and delicate, easy to store, does not occupy space Features -Color:Golden -Material:Medium carbon steel -Size:1.30X0.70X0.70cm/0.51X0.28X0.28in -When it is screwed into the hole of plastic metal, the wood or drywall material, the internal thread is formed. -Suitable for woodworking fences, docks, balconies, and courtyards. It can easily drill into hardwoods. -The cross self-tapping screws does not need to be used with the nuts, reliable locking thread connection is formed in the hole. -You will obtain large quantity of long screws, abundant enough to satisfy your daily using and replacing needs. -It is suitable for screwing for woodworking. It is sturdy and , and . Package list: 500g x screws (500g/about 900pcs)