A
Anonymous
Apr 05, 2026
Rating: 5/5
Exact match
Fit the 250 series perfectly. No modifications needed during installation.
Description
200 Lianhu 250 Model Grinder Screws, Pulping Machine Parts, Fasteners, Grinding Disc Bolts, Square/Flat/Round Head Nuts
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material Grade | Grade 8.8 High-Carbon Steel |
| Series Compatibility | Lianhu 200 & 250 Series |
| Head Style | Mixed Square and Round Head |
| Thread Specification | Metric Coarse Thread |
| Surface Finish | Zinc Plated for Corrosion Resistance |
| Tensile Strength | 800 MPa Minimum |
| Package Quantity | 100 Pieces per Box |
| Net Weight | 5.2 kg |
| Manufacturing Standard | DIN 931/934 Compliant |
| Warranty | 1 Year Limited Manufacturer Warranty |
5 reviews
A
Anonymous
Feb 28, 2026
Rating: 5/5
Heavy duty
Handles high vibration environments without loosening. Very satisfied with the durability.
A
Anonymous
Feb 07, 2026
Rating: 4/5
Solid product
Works as described. Would prefer a stainless steel option for wet environments, but these are good for dry milling.
A
Anonymous
Feb 07, 2026
Rating: 4/5
Good quality
Strong bolts and nuts. Shipping took a bit longer than expected but the product quality makes up for it.
A
Anonymous
Feb 06, 2026
Rating: 5/5
Perfect for our mill
Replaced old fasteners on our 250 series unit. Fitment was exact and they hold up well under vibration.
5 FAQ
Q: What is the corrosion resistance level?
A: These feature a zinc plating suitable for standard industrial environments. For highly corrosive areas, additional coating is recommended.
Q: Are washers included in the box?
A: No, this package includes only the bolts and nuts. Washers are sold separately.
Q: Can these handle high torque applications?
A: Yes, Grade 8.8 steel is designed for high tensile strength and torque requirements typical of grinding mills.
Q: Do I need to apply thread locker?
A: It is recommended to apply standard industrial thread locker during installation to prevent loosening due to vibration.
Q: Is there a bulk discount available?
A: Yes, please contact our sales department directly for pricing on orders exceeding 10 boxes.
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