Our hex flange nuts are Class 8.8 high strength grade, manufactured from premium carbon steel with color zinc plating surface treatment. The built-in flange distributes pressure evenly during tightening, avoids surface damage and improves anti-loosening performance.
This 8.8 grade flanged hex nut is widely used for heavy trucks, trailers, pickups and engineering machinery assemblies. Strict thread tolerance control ensures smooth matching with bolts.
-8.8 grade high tensile strength carbon steel
-Color zinc plated finish for rust & corrosion resistance
-One-piece flange design, no extra washer needed
-Precise internal thread for reliable connection
-Bulk wholesale & OEM custom specifications available
-Suitable for heavy-duty vehicle and machinery fastening
We support custom sizes, packaging and marking. Contact us for catalog and bulk price.
FAQ
Q: What does 8.8 grade mean for a flange nut?
A: 8.8 grade is a common high-strength metric fastener grade. It means the nut has a minimum tensile strength of 800 MPa and yield strength of 640 MPa, ideal for heavy load applications on trucks and equipment.
Q: Is this 8.8 hex flange nut rust-proof?
A: Yes. It is finished with color zinc plating, which offers good corrosion resistance for normal outdoor and undercarriage use.
Q: Can you provide custom sizes of 8.8 grade flange nuts?
A: Yes, we support OEM custom thread sizes, plating options and packaging for bulk orders.
Q: Where are these 8.8 hex flange nuts commonly used?
A: They are widely applied on heavy trucks, trailers, pickup trucks and construction machinery fastening joints.
