Части за завъртане на въглеродна стомана

Carbon steel galvanized slotted computer screw 4-40UNC American thread material screw is a specific specification of American screw. It is a high-quality fastener, mainly designed to meet the needs of general industry and electronic assembly. It is made of high-quality carbon steel, has reliable strength and balanced hardness, and is an economical choice for many applications. По -долу, ние ще го наричаме като части от въглеродна стомана .