Hexagon Countersunk Head Screws
Material:Stainless steel 304/316
Head style:Socket
Drive mode:Internal Hex
Products Description
Hex countersunk head screws are versatile fasteners commonly used in a variety of applications and are known for their flush finish and secure hold. These screws have hex heads with a cone underneath, allowing them to sit flush with the surface when fully screwed in.

Product Details
Product name: Hexagon countersunk head screws
Material:Stainless steel 304/316
Head style:Socket
Drive mode:Internal Hex
Brand Name:Lemar
Standard: DIN7991
Size:Customized size
Delivery time:5-20 days
Package type:Bulk in boxes
Product specifications

|
d |
b |
t |
e |
s |
k max |
d1 |
|
M3 |
12 |
1.2 |
2.3 |
2 |
1.7 |
6 |
|
M4 |
14 |
1.8 |
2.87 |
2.5 |
2.3 |
8 |
|
M5 |
16 |
2.3 |
3.44 |
3 |
2.8 |
10 |
|
M6 |
18 |
2.5 |
4.58 |
4 |
3.3 |
12 |
|
M8 |
22 |
3.5 |
5.72 |
5 |
4.4 |
16 |
|
M10 |
26 |
4.4 |
6.86 |
6 |
5.5 |
20 |
|
M12 |
30 |
4.6 |
9.15 |
8 |
6.5 |
24 |
|
M16 |
38 |
5.3 |
11.43 |
10 |
7.5 |
30 |
|
M20 |
46 |
5.9 |
13.72 |
12 |
8.5 |
36 |
|
M24 |
54 |
10.3 |
16 |
14 |
14 |
39 |
Feature
Hex countersunk head screws are typically made from materials such as steel, stainless steel, or brass for durability and corrosion resistance. Their design includes a hex head that can be driven with a wrench or hex key, providing a secure grip during installation. The countersunk shape allows the screw to sit flush with the surface, preventing protrusions that could cause accidents or damage.
Introduction
Stainless steel hexagonal socket head screws can resist corrosion and are used in environments containing oxidizing acidic substances, such as chemical industry, food processing, shipping, etc. Because stainless steel has the characteristics of anti-rust, beautiful appearance, strong and durable, etc., DIN7991 flat head hexagon socket stainless steel bolts are becoming more and more popular. The more manufacturers favor it.
Quick View
|
Material |
Stainless Steel,Alloy Steel,Carbon steel |
|
Head Type |
Socket,Flat |
|
Thread Coverage |
Fully Threaded |
|
Finish |
Plain,Polish |
|
Package Quantity |
25pcs |
|
Size |
M3-M24 Or Customized |
|
Brand |
Wuxi Lemar |
Technology requirement
Anti-corrosion treatment on the surface of stainless steel screws refers to the use of various methods to apply a protective layer on the metal surface.
The purpose is to isolate the metal from the corrosive environment, thereby inhibiting the occurrence of the corrosion process, or reducing the interaction between corrosive media and Stainless Steel Fully Threaded Screws Surface contact to prevent or mitigate corrosion.
The protective layer should meet the following requirements
1. Corrosion resistance, wear resistance, high hardness.
2. The structure is tight, intact and has small pores.
3. It is firmly separated from the base metal and has good adhesion.
4. Evenly distributed and with a certain thickness.
Rigorous testing

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