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本公司是一家集生產(chǎn)銷售為一體的緊固件生產(chǎn)廠家，本公司主要生產(chǎn)：GB70、GB/T 70.3、ISO10642、DIN7991、內(nèi)六角沉頭螺釘、GB5787、GB5789、DIN6921、六角法蘭面螺栓、GB/T70.2、ISO7380、內(nèi)六角平圓螺釘、DIN912內(nèi)六角螺釘；GB5782、GB5783、DIN931、DIN933六角頭螺栓；GB1228、DIN6914、JIS1186鋼結(jié)構(gòu)用高強(qiáng)度大六角頭螺栓，GB27六角頭鉸制孔用螺栓，GB3632鋼結(jié)構(gòu)用高強(qiáng)度扭剪型螺栓；GB6170、DIN934螺母、T型、雙頭、方頭、沉頭、緊定等各種型號(hào)規(guī)格的非標(biāo)螺栓，規(guī)格從M3-M100，長(zhǎng)度不限。產(chǎn)品級(jí)別有：4.8級(jí)、6.8級(jí)、8.8級(jí)、10.9級(jí)、12.9級(jí)、B7、L7和B7M等，使用材料有35#、40Cr、35CrMoA、42CrMoA、25Cr2MoVA、20MnTiB和各種牌號(hào)的不銹鋼材料。產(chǎn)品主要用于機(jī)械、建筑、橋梁、石化等。產(chǎn)品暢銷全國(guó)各地，并遠(yuǎn)銷中東、歐洲、澳洲等國(guó)家和地區(qū)。

Ningbo Situo Fastener Co., Ltd, Located in Zhenhai District, Ningbo, China We have 1 full sets of hot forged equipment and 10 bolts multi-location automatic cold forged equipment,1 lines of automatic heat treatment production and 4 advanced CNC machines,1 laboratory with full test equipment. Now we have 50 staffs, We use ERP management system, having a full set of modern production management system. We mainly produce high strength and high quality fasteners widely used in Tractor ,automobile, construction, energy, heavy machinery, transportation, bridge and oil pipeline industries. Since 2005. Now We monthly capacity prodcution 1000Tons,standard fastener in accordance with GB, DIN, ISO,ANSI/ ASTM/SAE/IFI, AS,BS, UNI, JIS., etc Size:from M4-M100 1/4- 4 Grade: CL4.8 5.8 8.8 10.9 12.9 2 5 8 Furface coating:Black,Zinc plated,Yellow zinc plated,PH.HDG,Dacromet,Nickelage, Electric Zinc Etc.