| Material: | Alloy Steel |
|---|---|
| Type: | Hexagon Head |
| Connection: | Common Bolt |
| Head Style: | Hexagonal |
| Standard: | DIN |
| Grade: | 8.8 |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier Metric Standard Class 8.8 Grain Silo Bolt Nut
General Specifications as per DIN6921 (with curved flange head)
Or DIN933 (hexagon head)
Special desiged collar with curve for assembly with EPDM washer
Threads Size M8, M10, M12, M16
Bolts Length: 19mm~50mm
Class 8.8 (DIN/ISO)
High Tension Steel Quenched & Tempered
| Specifications | Threads Size | Bolts Length | Class | |
| DIN6921 (with curved flange head) DIN933 (hexagon head) |
M8 | 19mm~50mm | 8.8 | |
| M10 | ||||
| M12 | ||||
| M16 |
Compatiable with Hex Nut DIN934 or Flange Nut DIN6923
Features:
Silo Bolts specially designed for fastening (fixing) grain silos or related agriculture storages that need high strength, long last and good sealing features.
The hex head with a curved collar design is to fit a HDPE or EPDM washers.
Surface Finish:
Options: Salt Spray Test (ASTM B117) 500~2000Hrs without red rust
Electric zinc galvanizing with trivalent chromate conversion (blue/white or yellow converter). Trivalent chromate conversion with yellow converter is one of a variety of chromate conversion coatings available for use on Eberhard parts. Chromate conversion coatings are produced on various metals through chemical or electrochemical treatment with mixtures of trivalent chromate conversion and certain other compounds. Through these treatments, the metal surface is converted to a superficial layer containing a complex mixture of trivalent chromate conversion compounds. Thickness from 12~20micro
Organic Coating/Mechanical Coatings
Q1: Are you a factory or trading company?
A: We are the specialized supplier of fastener, can provide the best price.
Q2: How many years you do foreign trade?
A: We have more than 16 years experience in exporting products to worldwide countries; can provide the high quality fastener!
Q3: Do you have enough outputs?
A: We have enough stock in warehouses with abundant capital. We offer 24-hour services.
Q4: How to ensure that every process's quality?
A: Every process will be checked by our quality inspection department which insures every product's quality.
Q5: How to ensure the safety of long-distance transportation?
A: Professional packing teams which keep every packing safely.
Q6: Can you provide some sample?
A: Samples can be provided as your requirements.
Suppliers with verified business licenses
Audited Supplier 
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