Standard: ASTM A325 Hex heavy bolts
Size: from 1/2"--4"
Material:Carbon steel/ Alloy steel/ stainless steel
Surface treatment:self color black ZP YZP WZP H.D.G
China Ningbo Taida Fastener Manufacture CO.,LTD. is specialized in manufacturing stud bolts, threaded rods, bolts and nuts. The standards include DIN931/DIN933/DIN558 and ASTM A325 hexagon head bolts, DIN934, DIN6923, DIN985 and ASTM A194 2H nut . DIN960,DIN961,DIN6914,DIN7990,DIN7991,DIN912, DIN7985 screws and DIN975, DIN976,ASTM A193 B7 threaded rods, as well as other AS, GB,ISO,BS, JIS standard. Besides, we also accept the non-standard products businesses. We maintain the highest standards of quality and service by combining experience with the latest manufacturing technology available. We are providing our products to oilfield and industry markets. The sizes are from M12 to M100 (from 1/2 inch to 4 inches )in diameter. The product grades are 4.8, 6.8, 8.8, 10.9,12.9, B7,L7 and B7M ,etc. The using materials are 35#, 45#,40Cr, 35CrMoA, 42CrMoA, 25Cr2MoVA, 20MnTiB, various brands of stainless steel material. The products are mainly applicable for the machinery, construction, bridge, petrochemical and so on. Therefore, our products are well-sold among the whole country, moreover, they are also widely spread all over the world, including Europe, North-America, Mid-east, Japan, Etc. Bearing the principle of “quality the eternal base, credit forever pursuit”, we will sparer no effort to provide our clients with more stable quality and more wonderful service, and warmly welcome you both at home and abroad to cooperate with us in the long.