Shanghai Jianfeng Hardware Products Co., Ltd is a limited liability company registered by Shanghai Municipal Bureau of Industrial and Business Administration. It is a professional stainless steel fastener supplier integrates manufacturing, selling with service. We successively founded factories and distribution companies in Xinghua Jiangsu, Wenzhou Zhejiang, Dongguan Guangdong and Zhongshan Guangdong. Our main products are hexagon bolts, HG20634 steel pipe flanges fasteners, socket cap bolts, stud bolts, dog bolts, oval head square neck bolts, expansion bolts, anchor bolts, U bolts, thread rods, full thread bars. Set screws, button head machine screws, countersunk head machine screws, cup head socket machine screws, countersunk head socket machine screws, button head tapping screws, countersunk head tapping screws, hexagon tapping screws, point cutting bolts, internally threaded rivets, blind rivets, semi-tubular rivets. Hexagon nuts, acorn nuts, nylon lock nuts, flange nuts, metal lock nuts, K nuts, square nuts, square weld nuts, hexagon spot welding nuts, wing nuts, thin nuts, thick nuts, rivet nuts. Plain washers, spring washers, internal tooth washer, external tooth washer, other abnormity washers, circlip for shaft (external), circlip for hole (internal), split washer. Split pins, (internal thread) cylindrical pins, (internal thread) tapper pins, spring-type straight pins, rolling spring-type straight pins, pins with hole, pin rolls. Specialized in all kinds of jam screws and all kinds of jam nuts. We can lathe all kinds of non-standard fasteners and precision components; we also can customize cold heading long small screws. Heating upset machine work with all kinds of big screws, nuts and non-standard components. At the same time, we are the deputy of “THE” Dongming SUS304 and SUS316 stainless steel screws. Material: 316L, 316, 304, 302, 2520, 301, 201, 200( 304, 316, etc are the products of Shanghai Baosteel) Standards: GB, DIN, BS, IFI, JIS and 76-year old standard.