China wholesale M6 Flat Washer - hexagon socket screw – Ji Luo Fastener

Short Description:

Product Description Good quality manufacture produce Inner hexagon bolt Inner hexagon bolt/bolt manufacturer/hexagon head fitted bolts     Product Name inner hexagon bolt Material carbon steel Color as your request Standard DIN 5Grade 4.8,8.8,10.9,12.9,201,304,316 Certification ISO9001-2015 Thread size M12 Suitable substrate Concrete, Stone, Marble   The products we produce