TOBO GROUP LTD
| Delivery Time | 15-30 Workdays |
| Height | Standard Height / Heavy Hex |
| Trademark | OEM |
| Payment Terms | T/T, Western Union |
| Grade | 4.8/6.8/8.8/10.9/12.9 |
| Pitch | Fine |
| Thread Pitch | 0.5-3.0mm |
| Supply Ability | 15tons per month |
| Product | Hex Head Lock Nut |
| Thread | UNC,M4 M5 M6 M8 M10 M12,UNF.M |
| Tolerance | Class 6H / Class 2A |
| Materials | 40CrMo/42CrMo/C1035/C1045 |
| Service | OEM |
| Color | White Zinc |
| Packaging Details | Standard Shipping Package |
| Certification | ISO/TUV/SGS |
| Model Number | Hex Head Nuts |
| Brand Name | TOBO |
| Place of Origin | Shanghai, China |
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Product Specification
| Delivery Time | 15-30 Workdays | Height | Standard Height / Heavy Hex |
| Trademark | OEM | Payment Terms | T/T, Western Union |
| Grade | 4.8/6.8/8.8/10.9/12.9 | Pitch | Fine |
| Thread Pitch | 0.5-3.0mm | Supply Ability | 15tons per month |
| Product | Hex Head Lock Nut | Thread | UNC,M4 M5 M6 M8 M10 M12,UNF.M |
| Tolerance | Class 6H / Class 2A | Materials | 40CrMo/42CrMo/C1035/C1045 |
| Service | OEM | Color | White Zinc |
| Packaging Details | Standard Shipping Package | Certification | ISO/TUV/SGS |
| Model Number | Hex Head Nuts | Brand Name | TOBO |
| Place of Origin | Shanghai, China | ||
| High Light | DIN 985 hexagon lock nut ，M10 x 1.5 self-locking nut ，gold dichromate lock nut | ||
| Parameter | Details |
|---|---|
| Product Name | Hexagon Lock Nut with Nylon Insert (Prevailing Torque Type) |
| Standard | DIN 985 (ISO 10511) |
| Thread Size | M10 x 1.5 (coarse) |
| Strength Class | Class 8 (matches bolt grade 8.8) |
| Material | Carbon steel |
| Surface Finish | Yellow dichromate (yellow zinc) |
| Colour | Gold |
| Locking Feature | Nylon insert (polyamide ring) |
| Thread Tolerance | 6H (internal) |
| Across Flats (s) | 17 mm (standard) |
| Across Corners (e) | 19.6 mm (min) |
| Nut Height (m) | ~8.4 mm (standard) |
| Operating Temperature | -50°C to +120°C (nylon limit) |
| Reusability | Limited – nylon loses grip after multiple removals |
| Brand | TOBO |
| Place of Origin | China |
DIN 985 Yellow Dichromate Hexagon Lock Nut with Nylon Insert – M10 x 1.5 – Class 8 – Gold – Prevailing Torque Self‑Locking Nut
Self‑locking hex nut manufactured to DIN 985 (ISO 10511). Nylon insert provides prevailing torque that resists loosening under vibration. Yellow dichromate finish offers enhanced corrosion resistance and a gold appearance. Strength class 8 matches property class 8.8 bolts. Suitable for machinery, automotive, and any bolted joint subject to dynamic loads.
Automotive chassis, suspension, and engine mounts
Industrial machinery and vibrating equipment
Agricultural implements and off‑road vehicles
Pumps, compressors, and motor mounts
Conveyor systems and material handling
General maintenance where vibration is present
Nylon insert locks without damaging bolt threads – reusable within limited cycles
Prevailing torque design – resists loosening from shock and vibration
Yellow dichromate plating – up to 200+ hours salt spray protection
Class 8 strength – matches the most common bolt grade (8.8)
Easy assembly – installs with standard tools; no adhesive or wire required
Cost‑effective alternative to all‑metal lock nuts
Metric coarse thread – quick engagement and wide availability
Nylon ring compresses against bolt threads to create friction – generates prevailing torque
Resists rotation caused by vibration or cyclic loading
Maintains clamp load over extended service periods
Allows adjustment and re‑torquing if needed
Provides locking action without deforming threads – bolt remains reusable
Packing: Bulk cartons or plastic bags + cartons; custom packaging available
Delivery: 7–15 days for stock; 15–20 days for custom orders
Q: Can this nut be reused?
A: Yes, but the nylon insert loses its locking effectiveness after several removals – new nuts are recommended for critical applications.
Q: What is the maximum temperature for this nut?
A: The nylon insert is rated up to +120°C; for higher temperatures, use all‑metal lock nuts (e.g., DIN 980).
Q: Does this nut require a washer?
A: Not necessary, but a flat washer can be used under the nut to distribute load if the bearing surface is soft.
Q: What bolt grade should this be used with?
A: Class 8 nuts are designed for property class 8.8 bolts.
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2010
Total Annual:
5000000-6000000
Ecer Certification：
Verified Supplier
TOBO GROUP LTD is a professional fastener manufacturer and exporter in China. We produce various types of fasteners (include non-standard) in GB, DIN, BS, ANSI/ASME, IFI, ISO, and JIS with 300 tons of monthly productivity. Our main products are bolts, nuts, screws, threaded rods, plain was... TOBO GROUP LTD is a professional fastener manufacturer and exporter in China. We produce various types of fasteners (include non-standard) in GB, DIN, BS, ANSI/ASME, IFI, ISO, and JIS with 300 tons of monthly productivity. Our main products are bolts, nuts, screws, threaded rods, plain was...
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