Description
The 304 Stainless Steel Hex Head Screw (specifically the ISO 7380-2 Flanged Button Head) is a high-performance fastener designed for applications requiring a low-profile aesthetic without sacrificing load-bearing capacity. Crafted from premium AISI 304 stainless steel, this screw features a distinctive round head integrated with a non-removable "cushion" flange. This built-in washer design is engineered to distribute pressure across a wider surface area, effectively preventing material deformation and enhancing vibration resistance. Utilizing a precision hex socket drive, these machine screws offer superior torque transfer and slip resistance, making them a preferred choice in automotive assembly, electronics, and precision machinery where surface protection and structural integrity are paramount.
Features & Benefits
- Integrated Cushion Flange: The built-in flange acts as a permanent washer, providing superior load distribution. This "cushion" effect protects delicate or thin materials from crushing or marring during high-torque installation.
- Superior 304 Stainless Steel Construction: Our stainless steel screws provide exceptional resistance to moisture, oxidation, and chemicals. This ensures a rust-free service life even in humid or demanding industrial environments.
- High-Torque Hex Socket Drive: The internal hexagonal drive allows for a more secure engagement with tools compared to traditional slotted or Phillips heads. This prevents "cam-out" or stripping, allowing for tighter, more reliable connections.
- Streamlined Low-Profile Design: The rounded head provides a clean, snag-free finish that is both functional and aesthetically pleasing for visible consumer-facing products.
Specification
|
Nominal diameter - d |
M3 |
M4 |
M5 |
M6 |
M8 |
M10 |
|
|
Pitch-P |
0.5 |
0.7 |
0.8 |
1 |
1.25 |
1.5 |
|
|
h |
max |
0.7 |
0.8 |
1 |
1.2 |
1.5 |
2 |
|
min |
0.55 |
0.65 |
0.8 |
1 |
1.25 |
1.7 |
|
|
dk |
max |
5.2 |
7.2 |
8.8 |
10 |
13.2 |
16.5 |
|
min |
4.9 |
6.8 |
8.4 |
9.6 |
12.8 |
16.1 |
|
|
dc |
max |
6.9 |
9.4 |
11.8 |
13.6 |
17.8 |
21.9 |
|
min |
6.32 |
8.82 |
11.1 |
12.9 |
17.1 |
21.6 |
|
|
k |
max |
1.65 |
2.20 |
2.75 |
3.3 |
4.4 |
5.5 |
|
min |
1.40 |
1.95 |
2.50 |
3.0 |
4.1 |
5.2 |
|
|
s |
max |
2.08 |
2.58 |
3.08 |
4.095 |
5.14 |
6.14 |
|
min |
2.02 |
2.52 |
3.02 |
4.02 |
5.02 |
6.02 |
|
|
t |
min |
1.04 |
1.3 |
1.56 |
2.08 |
2.6 |
3.12 |
FAQ:
Q1: What is the advantage of the "Cushion" head over a standard button head screw?
A: The "cushion" or flange eliminates the need for a separate flat washer. It increases the bearing surface under the head, which prevents the hex head screw from sinking into softer materials like plastics, thin sheet metal, or wood, and improves the overall clamping force.
Q2: What tool do I need to install these fasteners?
A: These screws require a standard Metric Allen key (Hex key) or a hex-bit driver. The internal drive allows for easy access in tight spaces where a traditional external hex wrench might not fit.
Q3. Are these screws available in partial threads?
A: Typically, ISO 7380-2 machine screws are supplied in full thread to maximize engagement, but custom lengths and partial threading can be manufactured for bulk industrial orders.
