12.9 Socket Head Cap Screws
Model:M3~M24 Hexagon bolt partly thread
Finish:Black
Class:12.9
Product Description
Grade 12.9 bolts are high-strength bolts typically used in applications that need to withstand high stresses and in critical structures. The head of this bolt is a hexagonal head and is usually used where higher tightening force is required. They are typically made from alloy steel, which provides excellent tensile and shear strength.
Hexagon socket bolts DIN912/ISO4762 are also called cup head hexagon socket bolts. The shape is a cylindrical head and the groove is an inner hexagonal polygon. Because it is easy to fasten and disassemble and is not easy to slip, it is widely used in mechanical installation.
Regarding full thread and half thread, half thread does not mean that the thread and screw rod are equally divided in length, but that the thread has one part and the polished rod occupies the other part.
Product parameters
Name:High Tensile steel socket head cap crews
Model:M3~M24 Hexagon bolt partly thread
Finish:Black
Class:12.9
Brand:Lemar
HS code:7318159001
Specifications:DIN 912/ISO 4762
Material: Zinc Alloy Steel
Specification
|
Specification |
B--Thread length |
Dk |
||
|
Max Ф of head |
Min Ф of head |
Head knurling |
||
|
M2 |
16 |
3.8 |
3.62 |
3.98 |
|
M2.5 |
17 |
4.5 |
4.32 |
4.68 |
|
M3 |
0.5 |
5.5 |
5.32 |
5.68 |
|
M4 |
0.7 |
7 |
6.78 |
7.22 |
|
M5 |
0.8 |
8.5 |
8.28 |
8.72 |
|
M6 |
1 |
10 |
9.78 |
10.22 |
|
M8 |
1.25 |
13 |
12.73 |
13.27 |
|
M10 |
1.5 |
16 |
15.73 |
16.27 |
|
M12 |
1.75 |
18 |
17.73 |
18.27 |
|
M14 |
2 |
21 |
20.67 |
21.33 |
|
M16 |
2 |
24 |
23.67 |
24.33 |
|
M18 |
2.5 |
27 |
26.67 |
27.33 |
|
M20 |
2.5 |
30 |
29.67 |
30.33 |
|
M22 |
2.5 |
33 |
32.61 |
33.39 |
|
M24 |
3 |
36 |
35.61 |
36.39 |
Product details
|
Thread diameter range |
M1.4-M64 Class A metric high-strength hexagon socket bolts |
|
Thread tolerance |
6g (12.9 class is 5~6g) |
|
Material |
10.9/12.9 Steel,Stainless steel,copper,nylon 6.6 |
|
surface treatment |
Blackened, galvanized |
|
surface coating |
Plating |
|
DIN912 hexagon socket bolt inspection scope |
Appearance inspection, tensile test, impact test, surface hardness, torsion test, salt spray test, etc. |
|
1.Standard size Full thread and half thread optional Quick installation, save time |
|
|
|
2.Stable structure Hexagon socket screws require an Allen wrench with a 90° turn to prevent slipping.
|
|
3.Complete specifications M1.4-M64 various sizes In stock and shipped quickly
|
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