DIN7991 Csk Head Hex Socket Screws
DIN7991
Dimensions : Millimeter (mm)
Thread Specification
d |
M3 |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
(M14) |
M16 |
(M18) |
M20 |
(M22) |
M24 |
| P |
Pitch |
0.5 |
0.7 |
0.8 |
1 |
1.25 |
1.5 |
1.75 |
2 |
2 |
2.5 |
2.5 |
2.5 |
3 |
| α |
tol.(+2) |
90° |
90° |
90° |
90° |
90° |
90° |
90° |
90° |
90° |
90° |
90° |
60° |
60° |
| b |
L≤125mm |
12 |
14 |
16 |
18 |
22 |
26 |
30 |
34 |
38 |
42 |
46 |
50 |
54 |
| 125 |
/ |
/ |
/ |
24 |
28 |
32 |
36 |
40 |
44 |
48 |
52 |
56 |
60 |
| L>200 |
/ |
/ |
/ |
/ |
/ |
45 |
49 |
53 |
57 |
61 |
65 |
69 |
73 |
| dk |
Max=Nominal |
6 |
8 |
10 |
12 |
16 |
20 |
24 |
27 |
30 |
33 |
36 |
36 |
39 |
| Min |
5.7 |
7.64 |
9.64 |
11.57 |
15.57 |
19.48 |
23.48 |
26.48 |
29.48 |
32.38 |
35.38 |
35.38 |
38.38 |
| ds |
Max=Nominal |
3 |
4 |
5 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
22 |
24 |
| Min |
2.86 |
3.82 |
4.82 |
5.82 |
7.78 |
9.78 |
11.73 |
13.73 |
15.73 |
17.73 |
19.67 |
21.67 |
23.67 |
| e |
Min |
2.3 |
2.87 |
3.44 |
4.58 |
5.72 |
6.86 |
9.15 |
11.43 |
11.43 |
13.72 |
13.72 |
16 |
16 |
| k |
Max |
1.7 |
2.3 |
2.8 |
3.3 |
4.4 |
5.5 |
6.5 |
7 |
7.5 |
8 |
8.5 |
13.1 |
14 |
| s |
Nominal |
2 |
2.5 |
3 |
4 |
5 |
6 |
8 |
10 |
10 |
12 |
12 |
14 |
14 |
| Min |
2.02 |
2.52 |
3.02 |
4.02 |
5.02 |
6.02 |
8.025 |
10.025 |
10.025 |
12.032 |
12.032 |
14.032 |
14.032 |
| Max |
2.1 |
2.6 |
3.1 |
4.12 |
5.14 |
6.14 |
8.175 |
10.175 |
10.175 |
12.212 |
12.212 |
14.212 |
14.212 |
| t |
Max=Nominal |
1.2 |
1.8 |
2.3 |
2.5 |
3.5 |
4.4 |
4.6 |
4.8 |
5.3 |
5.5 |
5.9 |
8.8 |
10.3 |
| Min |
0.95 |
1.55 |
2.05 |
2.25 |
3.2 |
4.1 |
4.3 |
4.5 |
5 |
5.2 |
5.6 |
8.44 |
9.87 |
| emin = 1.14 Smin |
|
|
|
|
|
|
|
|
Note : The data is for reference only .
SAMPLE CHARGE:
1.Samples charge: According to your request. Sampling time:5-7days
2.Samples charge: Free for Existing Mold. Sampling time:3days
ADVANTAGES:
1.Rapid Response;
2.Shortest Delivery;
3.Low MOQ;
| CHEMICAL COMPONENTS |
| Material |
C ≤ |
Si ≤ |
Mn ≤ |
P ≤ |
S ≤ |
Ni |
Cr |
Mo |
Others |
| 201 |
0.15 |
1 |
5.5-7.5 |
0.06 |
0.03 |
3.5-5.5 |
16-18 |
|
N≤0.25 |
| 304 |
0.08 |
1 |
2 |
0.045 |
0.03 |
8.0-10.0 |
18-20 |
|
|
| 304L |
0.03 |
1 |
2 |
0.045 |
0.03 |
8.0-12.0 |
18-20 |
|
|
| 321 |
0.08 |
1 |
2 |
0.045 |
0.03 |
8.0-13.0 |
17-19 |
|
Ti≤5*C% |
| 316 |
0.08 |
1 |
2 |
0.045 |
0.03 |
10.0-14.0 |
16-18 |
2-3 |
|
| 316L |
0.03 |
1 |
2 |
0.045 |
0.03 |
10.0-15.0 |
16-18 |
2-3 |
|
| 309S |
0.08 |
1 |
2 |
0.045 |
0.03 |
12.0-15.0 |
22-24 |
|
|
| 410 |
0.15 |
|
1 |
|
0.03 |
- |
11.5-13.5 |
|
|
| 420 |
0.26-0.4 |
|
1 |
|
0.03 |
- |
12-14 |
|
|
| 430 |
0.12 |
0.75 |
1 |
0.04 |
0.03 |
- |
16-18 |
|
|
Q: Are you trading company or manufacturer ?
A: We are manufacturer .
Q: How long is your delivery time?
A: Generally it is 7-15 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to specific item and quantity.
Shortest Delivery: We have large stock, 3 days for stock items,7-15days for production.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the shipping cost.
Q: What is your terms of payment ?
A: Less than USD5000-----------100% T/T in advance.
More than USD5000-----------50% T/T in advance ,balance before shippment.
Other terms is welcome.
Q: What is your price terms ?
A: EXW/FOB/CIF/CFR/FCA/CPT/CIP/DAP/DDP
Q:What's your product range?
A: Our product range includes screws, nuts, knobs, bolts, washers, rivet, anchor and CNC parts. We strictly implement various quality standards like GB, ISO, DIN, JIS, AISI NFE and BSW.Non-standard products also accepted.
Q:Why should I choose you? What's your advantages? Industries you are serving?
A: We are a professional manufacturer and have many years production and management experience in the field of fasteners .We can provide our customers with a good solution in the area of production design, production process,packaging and after-sale service.Customer satisfaction is our sole pursuit.
){kind=link}
){kind=link}