High Strength 12.9 Grade Track Bolt And Nut Sprocket Bolt And Nut Excavator Spare Parts

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High Strength 12.9 Grade Track Bolt And Nut Sprocket Bolt And Nut Excavator Spare Parts



we had produced all kinds of home and aboard brands. Our undercarriage products including idler, track roller, carrier roller, sprocket, track link,bolt and nut ,track shoe etc.. Runlai always pay great attention to the production technology and management, with hard working and standard management, we had become modernization and Quantitative Business. Our company is with the aim of “Quality assurance , Credit first”,strictly under the management of ISO9001:2000 authentications,with our mainly brand”H.S”and “HSB” received a good reputation from customers home and aboard. 12 sub-branch offices serve in different mainly province city.Customers from North America , West Euro and Southeast Asia built strong business relationship with HS.




High strength track shoe bolts & nuts
1.Material:40Cr2.Size: 1/2-1.1/8;M12-M30
3.Hardness :HRC38-42  4.mechanical grade:8.8/10.9/12.9
5.thread pitch:1.25/1.5/2/3 ;14/16/18/20
They can be fit for   Hitachi, CAT (Caterpillar), Komatsu, Daewoo,
Mitsubishi, etc. We  can also produce  as your blue print or samples.
Why You Choose Us?
1)20% of our works has over 10 years experience .
2)we have complete production line and a professional designer and working Team .We  can also produce  as your blue print or samples.
3) Materials:We has  purchased steel from several large steel groups , such as Hangzhou iron&steel group company, Shanghai Baosteel Group Corporation, make sure our raw material’s quality.
4). Quality control:  The quality control is strictly performed strat  from purchased raw materials to different machining procession till final packing. We have Magnetic Powder Detector, Material Testing Machine, Metallographic Microscope, such testing instruments, guarantee product high quality.

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Ms. Liu (General Manager)
Tel: 86-519-86302618
Mobile: 86-13775108023
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Changzhou Runlai Imp& Exp Co.,Ltd
Rm 708,No1 Bldg,Nanyang Trade Square.Hutang, Changzhou, Jiangsu, China (Mainland) / 213000
Fax: 86-519-86303618
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