Material: | Alloy Steel |
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Type: | Hexagon Head |
Connection: | Common Bolt |
Head Style: | Hexagonal |
Standard: | DIN |
Grade: | 8.8 |
Samples: |
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Customization: |
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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
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
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