Welding nails belong to a kind of fastener with high strength and stiffness connection, welding nails are arc stud welding with cylindrical head welding, welding nails have the identification mark of the manufacturer with convex word on the top of the head, the use of welding nails is very wide. Good welding nails should be stable quality, strict inspection, complete specifications, timely delivery, provide quality insurance policy, large welding nail production enterprises can also according to customer orders to customize special specifications for arc stud welding with cylindrical head welding nails. Arc stud welding with cylindrical head welding nail is suitable for high-rise steel structure building, industrial plant building, highway, railway, bridge, tower, automobile, energy, transportation facilities building, airport, station, power station, pipe support, lifting machinery and other kinds of steel structure engineering.