Hebei Kappa Metal Products Co., Ltd. is one of the most reliable manufacturers and suppliers of din 6923 grade 8.8 yellow zinc flange nut with serrations in China. Welcome to buy bulk high quality din 6923 grade 8.8 yellow zinc flange nut with serrations made in China here from our factory. If you have any enquiry about cooperation, please feel free to email us.
Drywall screws are not priced by quantity alone. Weight per piece has a direct effect on cost, especially for large orders. A small difference in screw weight can change the total tonnage and the final price.
Send us the details, drawing on my factory-floor experience, we can analyze your specific market conditions and store requirements to help you determine the most precise and appropriate pricing.e-no guesswork on weight.
Please specify:
01
- Diameter × length
- Head type (bugle head, countersunk, etc.)
02
- Thread type (fine or coarse)
- Coating (black phosphate, gray phosphate, zinc, etc.)
03
- Target weight per piece (g/pc)
- Order quantity
04
- Packaging (dimensions of the box/outer carton, package weight, and whether the logo style or color can be customized)
Product Specification
|
Item |
Flange Nut(Serrated) |
|
Standard |
DIN6923 |
|
Material |
Carbon steel |
|
Grade/Class |
8.8 |
|
Finish/Surface treatment |
Yellow Zinc |
|
Serration |
Yes |
|
Size |
M5-M20 |
|
Head Style |
Hexagonal |
|
Feature |
Serrated Flange |
DIN 6923 serrated flange nut, Grade 8 carbon steel nut, yellow zinc plated flange nut, metric hex flange nut, anti-loosening serrated nut, zinc plated hex nut, industrial fasteners, automotive flange nut, machinery fastening nut, wholesale flange nuts, custom size flange nuts, factory direct supply.
|
Thread size d |
M5 |
M6 |
M8 |
M10 |
M12 |
M14 |
M16 |
M20 |
||
|
P |
Pitch |
Coarse thread |
0.8 |
1 |
1.25 |
1.5 |
1.75 |
2 |
2 |
2.5 |
|
Fine thread 1 |
/ |
/ |
1 |
1.25 |
1.5 |
1.5 |
1.5 |
1.5 |
||
|
Fine thread 2 |
/ |
/ |
/ |
1 |
1.25 |
/ |
/ |
/ |
||
|
b |
Reference value |
L ≤ 125 |
16 |
18 |
22 |
26 |
30 |
34 |
38 |
46 |
|
125 ＜ L ≤ 200 |
/ |
/ |
28 |
32 |
36 |
40 |
44 |
52 |
||
|
L ＞ 200 |
/ |
/ |
/ |
/ |
/ |
/ |
57 |
65 |
||
|
c |
min |
1 |
1.1 |
1.2 |
1.5 |
1.8 |
2.1 |
2.4 |
3 |
|
|
da |
Type A |
max |
5.7 |
6.8 |
9.2 |
11.2 |
13.7 |
15.7 |
17.7 |
22.4 |
|
Type B |
max |
6.2 |
7.4 |
10 |
12.6 |
15.2 |
17.7 |
20.7 |
25.7 |
|
|
dc |
max |
11.8 |
14.2 |
18 |
22.3 |
26.6 |
30.5 |
35 |
43 |
|
|
ds |
max |
5 |
6 |
8 |
10 |
12 |
14 |
16 |
20 |
|
|
min |
4.82 |
5.82 |
7.78 |
9.78 |
11.73 |
13.73 |
15.73 |
19.67 |
||
|
du |
max |
5.5 |
6.6 |
9 |
11 |
13.5 |
15.5 |
17.5 |
22 |
|
|
dw |
min |
9.8 |
12.2 |
15.8 |
19.6 |
23.8 |
27.6 |
31.9 |
39.9 |
|
|
e |
min |
8.71 |
10.95 |
14.26 |
16.5 |
17.62 |
19.86 |
23.15 |
29.87 |
|
|
f |
max |
1.4 |
2 |
2 |
2 |
3 |
3 |
3 |
4 |
|
|
k |
max |
5.4 |
6.6 |
8.1 |
9.2 |
11.5 |
12.8 |
14.4 |
17.1 |
|
|
K1 |
min |
2 |
2.5 |
3.2 |
3.6 |
4.6 |
5.1 |
5.8 |
6.8 |
|
|
r1 |
min |
0.25 |
0.4 |
0.4 |
0.4 |
0.6 |
0.6 |
0.6 |
0.8 |
|
|
r2 |
max |
0.3 |
0.4 |
0.5 |
0.6 |
0.7 |
0.9 |
1 |
1.2 |
|
|
r3 |
min |
0.1 |
0.1 |
0.15 |
0.2 |
0.25 |
0.3 |
0.35 |
0.4 |
|
|
r4 |
≈ |
3 |
3.4 |
4.3 |
4.3 |
6.4 |
6.4 |
6.4 |
8.5 |
|
|
s |
Max = Nominal |
8 |
10 |
13 |
15 |
16 |
18 |
21 |
27 |
|
|
min |
7.78 |
9.78 |
12.73 |
14.73 |
15.73 |
17.73 |
20.67 |
26.67 |
||
|
t |
max |
0.15 |
0.2 |
0.25 |
0.3 |
0.35 |
0.45 |
0.5 |
0.65 |
|
|
min |
0.05 |
0.05 |
0.1 |
0.15 |
0.15 |
0.2 |
0.25 |
0.3 |
||
|
Thread length b |
- |
- |
- |
- |
- |
- |
- |
- |
||
Key Features
Serrated flange
Teeth under the flange bite into the contact surface to resist loosening under vibration; the flange spreads clamp load over a wider area.
Class 8 carbon steel
Tensile strength ≥800 MPa (per ISO 898-2); pair with 8.8 bolts.
Yellow zinc plating
Typically 5–8 μm, for indoor and sheltered outdoor use; not for direct rain or high-corrosion service.
Hex flange head
Standard wrench or socket, with the flange replacing a separate washer.
Metric threads
Common coarse and fine pitches to match standard bolts.
Bulk supply
Cartons and pallets for wholesalers and distributors.
Serrated Flange Design
DIN 6923 serrated flange nuts have teeth under the flange that bite into the contact surface as the nut is tightened, adding friction against vibration-induced loosening. The integrated flange spreads clamp load over a wider area than a plain nut, so it can replace a separate washer.
Common in automotive parts, machinery and metal frames. Not ideal for soft or painted surfaces-the teeth will mark them-or for joints that are taken apart often.
Custom Packaging&Private Label Available
Choose from bulk cartons, poly bags with branded labels, or retail-ready packaging. Minimum order quantities can be adjusted to support both small contractors and large-scale procurement needs.
We offer custom box/bags printing and labeling services to help you build your own product line.
FAQ
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