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Hdg DIN933/931 Hex Head Bolt Hot Dipped Galvanized Grade4.8/8.8
Standard: HEX HEAD BOLT HOT DIPPED GALVANIZED GRADE4.8/8.8
Product Name: Hex Head Bolt Hot dipped galvanized
Key Words: DIN 933/931, HDG
Size: M3-M42
Material:CARBON STEEL
Stength Grade: 4.8, 8.8
Surface Treatment: Plain
Thread Length: Full Thread/ Half Thread
Thread Type: Coarse/Fine
Packing: Bag, Carton, boxes+Carton,Pallet
Other Features: Offer customized head mark.
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Description
Product Dimensions
d M1.6 M2 M2.5 M3 (M3.5) M4 M5 M6 (M7) M8 P Pitch 0.35 0.4 0.45 0.5 0.6 0.7 0.8 1 1 1.25 a Max 1.05 1.2 1.35 1.5 1.8 2.1 2.4 3 3 3.75 c Min 0.1 0.1 0.1 0.15 0.15 0.15 0.15 0.15 0.15 0.15 Max 0.25 0.25 0.25 0.4 0.4 0.4 0.5 0.5 0.5 0.6 da Max 2 2.6 3.1 3.6 4.1 4.7 5.7 6.8 7.8 9.2 dw A Class Min 2.4 3.2 4.1 4.6 5.1 5.9 6.9 8.9 9.6 11.6 B Class Min - - - - - 5.7 6.7 8.7 9.4 11.4 e A Class Min 3.41 4.32 5.45 6.01 6.58 7.66 8.79 11.05 12.12 14.38 B Class Min - - - - - 7.5 8.63 10.89 11.94 14.2 k Nominal 1.1 1.4 1.7 2 2.4 2.8 3.5 4 4.8 5.3 A Class Min 0.98 1.28 1.58 1.88 2.28 2.68 3.35 3.85 4.65 5.15 Max 1.22 1.52 1.82 2.12 2.52 2.92 3.65 4.15 4.95 5.45 B Class Min - - - - - 2.6 3.26 3.76 4.56 5.06 Max - - - - - 3 3.74 4.24 5.04 5.54 k1 Min 0.7 0.9 1.1 1.3 1.6 1.9 2.28 2.63 3.19 3.54 r Min 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.25 0.25 0.4 s Max=Nominal 3.2 4 5 5.5 6 7 8 10 11 13 A Class Min 3.02 3.82 4.82 5.32 5.82 6.78 7.78 9.78 10.73 12.73 B Class Min - - - - - 6.64 7.64 9.64 10.57 12.57 d (M18) M20 (M22) M24 (M27) M30 (M33) M36 (M39) M42 P Pitch 2.5 2.5 2.5 3 3 3.5 3.5 4 4 4.5 a Max 7.5 7.5 7.5 9 9 10.5 10.5 12 12 13.5 c Min 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 Max 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1 1 da Max 20.2 22.4 24.4 26.4 30.4 33.4 36.4 39.4 42.4 45.6 dw A Class Min 25.3 28.2 30 33.6 - - - - - - B Class Min 24.8 27.7 29.5 33.2 38 42.7 46.5 51.1 55.9 59.9 e A Class Min 30.14 33.53 35.72 39.98 - - - - - - B Class Min 29.56 32.95 35.03 39.55 45.2 50.85 55.37 60.79 66.44 71.3 k Nominal 11.5 12.5 14 15 17 18.7 21 22.5 25 26 A Class Min 11.28 12.28 13.78 14.78 - - - - - - Max 11.72 12.72 14.22 15.22 - - - - - - B Class Min 11.15 12.15 13.65 14.65 16.65 18.28 20.58 22.08 24.58 25.58 Max 11.85 12.85 14.35 15.35 17.35 19.12 21.42 22.92 25.42 26.42 k1 Min 7.8 8.5 9.6 10.3 11.7 12.8 14.4 15.5 17.2 17.9 r Min 0.6 0.8 0.8 0.8 1 1 1 1 1 1.2 s Max=Nominal 27 30 32 36 41 46 50 55 60 65 A Class Min 26.67 29.67 31.61 35.38 - - - - - - B Class Min 26.15 29.16 31 35 40 45 49 53.8 58.8 63.1 Product Details
HDG generally refers to hot-dip galvanizing. Hot-dip galvanizing is to make the molten metal react with the iron matrix to produce an alloy layer, so that the matrix and the coating are combined. Hot-dip galvanizing is to pickle the iron and steel parts first, in order to remove the iron oxide on the surface of the iron and steel parts, after pickling, it is cleaned in a tank of ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to the hot dip coating tank. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life.
The corrosion resistance is mainly determined by the thickness of the galvanized layer, so the thickness measurement is often the main basis for judging the quality of the galvanized layer. The angle and speed of the solution also have a great influence. Therefore, it is practically impossible to obtain a completely uniform coating thickness. Therefore, the measurement of the adhesion amount can never be judged by a single point (location). It is only meaningful to measure the average adhesion weight (g) per unit area (㎡). There are many methods to measure the adhesion amount, such as destructive section metallographic observation method, pickling method, non-destructive film thickness meter method, electrochemical method, estimation method of weight difference between incoming and outgoing goods, etc. The commonly used methods are the film thickness gauge method and the pickling method.
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About Us
FAQ
1.You are a manufacturing company or trading company?
We are a fastener manufacturer, and our main products are Bolt, Nut, Screw, Anchor and Washer. Meanwhile, we are also a fastener trader with many years experiences in domestic and international market.
2.What quote do you offer?
We offer EXW, FCA(Guangzhou, Foshan, Yiwu, Shanghai, Wenzhou, Urumchi, and many other cities), FOB, CIF, CFR, DAP, DDP sea shipment terms.
3. Can you provide the necessary customs clearance documents
Yes. We are a legal and compliant enterprise of the People's Republic of China, having the formal import and export qualification. FORM E, CO, Invoice with embassy certification are all available for our order.
4.How pay?
T/T, Alibaba Online Payment, Paypal are all available.
5.How transport?
The most common means is sea shipment, if the order quantity is great, this means is the best.
But if the order quantity is little, we advise the air express or air transportation.
Of course, the land transportation is also OK.
Door to Door is also available.
6.Can I order a small list ?
Of course you can. We offer the samples service.
7.Can we print our own logo ?
Yes. We offer the customized service based on a big quantity. OEM and ODM are OK.
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The company's main products cover bolts, nuts, anchor, screws, washers and customized parts, casting parts, built-in fitting parts and steel