nail 1.size:customized 2.certificate: CE, SGS, En14960, En71, ASTM 3.warranty:3years 4.OEM/ODM:yes Nail1) Material: made of high-quality low-carbon-steel 2) Finish: electric galvanized, hot dipped galvanized, bright, brad with cup head, diamond point, smooth shank 3) Specifications: 1/2'' - 12'', BWG20 - BWG4Packing: Bulk, box, bag, or according to customers' requests Steel Nail