China wholesale Roofing Screw - HDG DIN933 Hex Head Bolt Hot Dipped Galvanized – Hongji
China wholesale Roofing Screw - HDG DIN933 Hex Head Bolt Hot Dipped Galvanized – Hongji
China wholesale Roofing Screw - HDG DIN933 Hex Head Bolt Hot Dipped Galvanized – Hongji Detail:
Description
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70% items delivered within 5 days
80% items delivered within 7 days
90% items delivered within 10 days
Bulk orders, please contact customer service
|
d |
M1.6 |
M2 |
M2.5 |
M3 |
(M3.5) |
M4 |
M5 |
M6 |
(M7) |
M8 |
M10 |
M12 |
(M14) |
M16 |
|||||||||||||||||
|
P |
Pitch |
0.35 |
0.4 |
0.45 |
0.5 |
0.6 |
0.7 |
0.8 |
1 |
1 |
1.25 |
1.5 |
1.75 |
2 |
2 |
||||||||||||||||
|
a |
Max |
1.05 |
1.2 |
1.35 |
1.5 |
1.8 |
2.1 |
2.4 |
3 |
3 |
3.75 |
4.5 |
5.25 |
6 |
6 |
||||||||||||||||
|
c |
Min |
0.1 |
0.1 |
0.1 |
0.15 |
0.15 |
0.15 |
0.15 |
0.15 |
0.15 |
0.15 |
0.15 |
0.15 |
0.15 |
0.2 |
||||||||||||||||
|
Max |
0.25 |
0.25 |
0.25 |
0.4 |
0.4 |
0.4 |
0.5 |
0.5 |
0.5 |
0.6 |
0.6 |
0.6 |
0.6 |
0.8 |
|||||||||||||||||
|
da |
Max |
2 |
2.6 |
3.1 |
3.6 |
4.1 |
4.7 |
5.7 |
6.8 |
7.8 |
9.2 |
11.2 |
13.7 |
15.7 |
17.7 |
||||||||||||||||
|
dw |
A Class |
Min |
2.4 |
3.2 |
4.1 |
4.6 |
5.1 |
5.9 |
6.9 |
8.9 |
9.6 |
11.6 |
15.6 |
17.4 |
20.5 |
22.5 |
|||||||||||||||
|
B Class |
Min |
- |
- |
- |
- |
- |
5.7 |
6.7 |
8.7 |
9.4 |
11.4 |
15.4 |
17.2 |
20.1 |
22 |
||||||||||||||||
|
e |
A Class |
Min |
3.41 |
4.32 |
5.45 |
6.01 |
6.58 |
7.66 |
8.79 |
11.05 |
12.12 |
14.38 |
18.9 |
21.1 |
24.49 |
26.75 |
|||||||||||||||
|
B Class |
Min |
- |
- |
- |
- |
- |
7.5 |
8.63 |
10.89 |
11.94 |
14.2 |
18.72 |
20.88 |
23.91 |
26.17 |
||||||||||||||||
|
k |
Nominal |
1.1 |
1.4 |
1.7 |
2 |
2.4 |
2.8 |
3.5 |
4 |
4.8 |
5.3 |
6.4 |
7.5 |
8.8 |
10 |
||||||||||||||||
|
A Class |
Min |
0.98 |
1.28 |
1.58 |
1.88 |
2.28 |
2.68 |
3.35 |
3.85 |
4.65 |
5.15 |
6.22 |
7.32 |
8.62 |
9.82 |
||||||||||||||||
|
Max |
1.22 |
1.52 |
1.82 |
2.12 |
2.52 |
2.92 |
3.65 |
4.15 |
4.95 |
5.45 |
6.56 |
7.68 |
8.98 |
10.18 |
|||||||||||||||||
|
B Class |
Min |
- |
- |
- |
- |
- |
2.6 |
3.26 |
3.76 |
4.56 |
5.06 |
6.11 |
7.21 |
8.51 |
9.71 |
||||||||||||||||
|
Max |
- |
- |
- |
- |
- |
3 |
3.74 |
4.24 |
5.04 |
5.54 |
6.69 |
7.79 |
9.09 |
10.29 |
|||||||||||||||||
|
k1 |
Min |
0.7 |
0.9 |
1.1 |
1.3 |
1.6 |
1.9 |
2.28 |
2.63 |
3.19 |
3.54 |
4.28 |
5.05 |
5.96 |
6.8 |
||||||||||||||||
|
r |
Min |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.2 |
0.2 |
0.25 |
0.25 |
0.4 |
0.4 |
0.6 |
0.6 |
0.6 |
||||||||||||||||
|
s |
Max=Nominal |
3.2 |
4 |
5 |
5.5 |
6 |
7 |
8 |
10 |
11 |
13 |
17 |
19 |
22 |
24 |
||||||||||||||||
|
A Class |
Min |
3.02 |
3.82 |
4.82 |
5.32 |
5.82 |
6.78 |
7.78 |
9.78 |
10.73 |
12.73 |
16.73 |
18.67 |
21.67 |
23.67 |
||||||||||||||||
|
B Class |
Min |
- |
- |
- |
- |
- |
6.64 |
7.64 |
9.64 |
10.57 |
12.57 |
16.57 |
18.48 |
21.16 |
23.16 |
||||||||||||||||
|
d |
(M18) |
M20 |
(M22) |
M24 |
(M27) |
M30 |
(M33) |
M36 |
(M39) |
M42 |
(M45) |
M48 |
(M52) |
||||||||||||||||||
|
P |
Pitch |
2.5 |
2.5 |
2.5 |
3 |
3 |
3.5 |
3.5 |
4 |
4 |
4.5 |
4.5 |
5 |
5 |
|||||||||||||||||
|
a |
Max |
7.5 |
7.5 |
7.5 |
9 |
9 |
10.5 |
10.5 |
12 |
12 |
13.5 |
13.5 |
15 |
15 |
|||||||||||||||||
|
c |
Min |
0.2 |
0.2 |
0.2 |
0.2 |
0.2 |
0.2 |
0.2 |
0.2 |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
|||||||||||||||||
|
Max |
0.8 |
0.8 |
0.8 |
0.8 |
0.8 |
0.8 |
0.8 |
0.8 |
1 |
1 |
1 |
1 |
1 |
||||||||||||||||||
|
da |
Max |
20.2 |
22.4 |
24.4 |
26.4 |
30.4 |
33.4 |
36.4 |
39.4 |
42.4 |
45.6 |
48.6 |
52.6 |
56.6 |
|||||||||||||||||
|
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 |
64.7 |
69.4 |
74.2 |
|||||||||||||||||
|
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 |
76.95 |
82.6 |
88.25 |
|||||||||||||||||
|
k |
Nominal |
11.5 |
12.5 |
14 |
15 |
17 |
18.7 |
21 |
22.5 |
25 |
26 |
28 |
30 |
33 |
|||||||||||||||||
|
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 |
27.58 |
29.58 |
32.5 |
|||||||||||||||||
|
Max |
11.85 |
12.85 |
14.35 |
15.35 |
17.35 |
19.12 |
21.42 |
22.92 |
25.42 |
26.42 |
28.42 |
30.42 |
33.5 |
||||||||||||||||||
|
k1 |
Min |
7.8 |
8.5 |
9.6 |
10.3 |
11.7 |
12.8 |
14.4 |
15.5 |
17.2 |
17.9 |
19.3 |
20.9 |
22.8 |
|||||||||||||||||
|
r |
Min |
0.6 |
0.8 |
0.8 |
0.8 |
1 |
1 |
1 |
1 |
1 |
1.2 |
1.2 |
1.6 |
1.6 |
|||||||||||||||||
|
s |
Max=Nominal |
27 |
30 |
32 |
36 |
41 |
46 |
50 |
55 |
60 |
65 |
70 |
75 |
80 |
|||||||||||||||||
|
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 |
68.1 |
73.1 |
78.1 |
|||||||||||||||||
Detail drawing
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.
Packing
We provide a variety of different packaging to meet different shipping environment and cost control. The most common types of packaging are ton packs, woven bags, boxes in bulk, boxes in boxes, plus pallets or wooden cases to meet sea or air transport requirements. Below are photos of the different packaging types we offer for reference.
About us
* The following diagram identifies the different trade incoterms. Please select the one you prefer.
Product detail pictures:
Related Product Guide:
Our company insists all along the quality policy of "product good quality is base of enterprise survival; buyer fulfillment will be the staring point and ending of an company; persistent improvement is eternal pursuit of staff" and also the consistent purpose of "reputation very first, shopper first" for China wholesale Roofing Screw - HDG DIN933 Hex Head Bolt Hot Dipped Galvanized – Hongji , The product will supply to all over the world, such as: Estonia, Georgia, Accra, Qualified R&D engineer will be there for your consultation service and we will try our best to meet your requirements. So please feel free to contact us for inquiries. You'll be able to send us emails or call us for small business. Also you are able to come to our business by yourself to get further knowing of us. And we will surely give you the best quotation and after-sale service. We're ready to build stable and friendly relations with our merchants. To achieve mutual success, we will make our best efforts to build a solid co-operation and transparent communication work with our companions. Above all, we are here to welcome your inquiries for any of our goods and service.
By Gary from Albania - 2017.06.22 12:49
With a positive attitude of "regard the market, regard the custom, regard the science", the company works actively to do research and development. Hope we have a future business relationships and achieving mutual success.
By Stephanie from Yemen - 2017.01.28 18:53
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