good quality grader blades bolt and nut
| Description | Plow bolt nut & pin locks |
| OEM Part number | 5J4771/4F3656/2J3506/8J2933/8E6208/8E6209 |
| Material | 40Cr,35CrMo,low alloy steel |
| Color | Black/gray/yellow |
| Size | Diameter from 1/2"-1.1/8",M12-M30 |
| Mechanical grade | 10.9/12.9 |
| Case hardening | HRC 38-43/47-52HRC |
| Surface treatment | Phosphorization |
| Technology | Forging and thermal refining |




v Yongfeng has been engaged in Ground Engaging Tools for more than 15 years.
v The whole production cycle is monitored by our Quality Management System ISO 9001:2008 certified.
v We now supply all forms of casting parts: bucket tooth, adpater, side cutter, end bit, cutting edge, lock pin and plow bolt nuts
v Rich OEM service experience
v Our products have been sold to more than 30 countries, we are very familiar with the whole markets, especially for Europe and North America markets.
v Our Commitment & Responsiblity:
1.Competitive Price
2.Strict Quality Control
3.Quick Response To Any Inquiries,Complaint,Technical Problem
4.Timely Delivery
5.Small Quantity Acceptable
v Yongfeng’s principle is not only to provide customers with good products, but also to ensure perfect application .Our formula to achieve such results? Quality + Efficiency + Integrity = Win-Win
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