Double head screws 1.Screw size:M6-M16 2.Screw ength:40-250mm 3.Finish:zinc,yellow 4.Material::carbon ... M6-M16 Material:: Carbon steel,stainless steel Finish: zinc,yellow Quality: High-quality raw material, strict inspection Product features: Features of fastening strength ... so on other countries and area. WENZHOU HOWLS FOREIGN TRADE CO.,LTDRm.1106,Digital Mansion,No.140,Xincheng Road,Wenzhou,Zhejiang ...