Concrete nail, commonly known as steel nails, is one of the types of nails, using carbon steel production, material have 45# steel or 60# steel, through wire drawing, annealing, nail, such as quenching process, so the quality of a material is harder. It is the function of nail in some more stiff other nails on the object, because the material is very different with the ordinary nails, belongs to the special nails. Concrete nail hardness is very big, thick, short, create ability is very strong.

Features:
It is harder with excellent fixing strength. 
Excellent anti-bending, anti-crack and safety. 
With various special nail heads (headless, round flat head or square head) and shank types (smooth shank, ring shank, twisted shank, twilled shank). 
It is used in construction and other industry fields. 
Specification:
Material: low carbon steel wire, stainless steel wire, copper or brass wire.
Finished: polished, electro or hot dipped galvanizing, acid-resistant, black, color, copper plated or brass plated
Size: diameter from 1.2mm to 8.0mm, length 16mm to 350mm.

Concrete nails packing:
20-25k per carton or wooden box in bulk.
75 or 100 pieces/box then cartons.
400 grams/box, 50 boxes/paper carton.
500 grams/box 40 boxes/paper carton.
1kg/box, 25 boxes/carton.