| Customization: | Available |
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| Material: | High Strength Steel |
| Type: | Hexagon Head With Flange |
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American Standard SAE J429 Grade 8 Hex Flange Head Grain Bin Bolts
Hex Head with Curved Flange, Pre-Assemblied with HDPE Sealing Washer,
Threads Size 5/16-18 (UNC)
Bolts Length: 3/4 inch (more lengths available)
White or Yellow/Color Zinc Coating (options)
Products in Stock, Quick to Ship!
Alloy Steel Quenched & Tempered
Mechanican properties (sample tested)
Proof strength: 132 kpsi
Tensile strength 155 kpsi
Yield strength 142 kpsi
Core Hardness 37 Hrc
Widely used on Grain Bin, Silo and other Agriculture Storage Building & Construction.
| Thread | 5/16-18 UNC |
| Length | 3/4 inch (under head) |
| Color | Yellow or White zinc (optional, same price) |
Features:
Bin Bolts specially designed for fastening (fixing) grain bins 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.
Customers can choose plain/smooth flanged bolt with a curved hex flange nut.
Grain Bin Bolts Nuts Surface Coating Options:
Zinc Galvanizing Fe/Zn 12um, Fe/Zn 20um, or Zinc Flake Coating,
Other Non-Electric Zinc Coatings, Mechanical Coating
Transhow have long experience on Anti-Corrosion treatment.
Our finished fasteners have a anti-corrosion features from 240Hrs, 500Hrs, up to 2000Hrs
(Pass Neutral Salt Spray Test ASTM B117)
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
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