Galvanized Countersunk Head Screw
Material:Carbon steel,Stainless steel,Copper
Head style:Round Countersunk head
Standard:DIN,ISO,JIS,ANSI,BSW
Products Description
Galvanized Countersunk Head Screw is an essential component in a variety of construction and carpentry projects. These screws feature a flat-head design that lies flush with the surface of the material being fastened, providing a smooth, refined appearance. The term "galvanized" refers to the protective zinc coating applied to screws to help prevent corrosion and rust, making them ideal for both indoor and outdoor applications.
Product Details
Product name: black 304 stainless steel countersunk head bolts
Material:Carbon steel,Stainless steel,Copper
Head style:Round Countersunk head
Standard:DIN,ISO,JIS,ANSI,BSW
Thread:M1.6~M10
Groove type: Ten and H,Z
Grade:4.8/8.8/10.9/12.9
Finished:Zinc plated/Black oxide/Hot dip galvanized
HS:7318140090
Feature
Phillips countersunk head screws and Phillips pan head screws are both machine screws. They have large heads and small bottoms, and are inverted conical shape. The head is flat and has cross grooves. They are also called countersunk head machine screws and flat head machine screws.
The surface of galvanized countersunk head screws is flat after tightening, and the screw head sinks into the workpiece without protruding from the surface, making it more beautiful.
Product specifications
|
Thread |
M1 |
M1.2 |
M1.4 |
M1.6 |
M2 |
M2.5 |
M3 |
M4 |
M5 |
M6 |
M8 |
M10 |
|
Diameter |
1 |
1.2 |
1.4 |
1.6 |
2 |
2.5 |
3 |
4 |
5 |
6 |
8 |
10 |
|
Pitch |
0.25 |
0.25 |
0.3 |
0.35 |
0.4 |
0.45 |
0.5 |
0.7 |
0.8 |
1 |
1.25 |
1.5 |
|
Head diametermax |
2 |
2.1 |
3.2 |
3.0 |
3.8 |
4.7 |
5.5 |
7.6 |
8.9 |
11.2 |
14.7 |
18.3 |
|
dk min |
1.7 |
1.8 |
2.8 |
2.7 |
3.5 |
4.4 |
5.2 |
7.1 |
8.5 |
10.5 |
14.1 |
17.5 |
|
Head thickness k |
0.6 |
0.9 |
1.0 |
1.2 |
1.3 |
1.5 |
1.7 |
2.6 |
3.1 |
3.6 |
4.5 |
6 |
Precautions when using Phillips countersunk head screws
1. The expansion taper of the Galvanized Countersunk Head Screw should be 90°. It is very critical to ensure that it is better to be <90° than >90°.
2. If the thickness of the sheet metal is smaller than the thickness of the head of the countersunk screw, you can change the screw to a smaller size, or you would rather enlarge the hole smaller than enlarging the bottom hole so that the diameter of the bottom hole becomes larger and the parts cannot be pressed tightly.
3. If there are multiple countersunk screw holes on the part, be more precise when processing. Once drilled crookedly, the assembly will be ugly. However, as long as the error is not large, it can be tightened, because when tightening, if the diameter of the screw is ≤8mm , when there is an error in the hole spacing, the round head of the cross countersunk head screw will be deformed due to stress when tightened.
For more information please contact Wuxi Lemar Metal.
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