Description
The Stainless Steel Butterfly Screw (also known as a wing screw) is a specialized type of machine screw designed for ultimate convenience and efficiency. Featuring an ergonomic, butterfly-shaped head, these fasteners are engineered for manual operation, allowing users to tighten or loosen them by hand without the need for screwdrivers or wrenches.
Forged from premium 304 stainless steel, these stainless steel screws provide a perfect balance of high tensile strength and excellent corrosion resistance. They are the go-to choice for applications requiring frequent adjustments, temporary assemblies, or quick maintenance, such as in laboratory equipment, electronic enclosures, drum kits, and adjustable furniture.
Features & Benefits
- Superior Corrosion Resistance: Constructed from high-grade 304 Stainless Steel, these screws are built to withstand humid and moderately corrosive environments. The material’s natural oxidation resistance ensures they remain rust-free and easy to turn over time.
- Efficient Tool-Free Operation: The distinctive "wing" design provides a large surface area for finger grip. This allows for rapid assembly and disassembly, significantly reducing downtime in industries where frequent calibration or component changes are necessary.
- Exceptional Durability and Strength: Unlike plastic-headed alternatives, our all-metal Stainless Steel Butterfly Screws offer high wear resistance. They maintain their structural integrity and thread precision even after repeated tightening cycles.
- Precision Threading for Secure Locking: Each screw features deep, uniform threads that ensure even load distribution. This results in a firm, dependable lock that resists loosening while remaining easy to remove manually when needed.
Specification
|
Nominal diameter-d |
M3 |
M4 |
M5 |
M6 |
M8 |
M10 |
|
|
Pitch -p |
0.5 |
0.7 |
0.8 |
1 |
1.25 |
1.5 |
|
|
dk |
max |
7.9 |
8 |
11 |
13 |
16 |
20 |
|
min |
7 |
6 |
8 |
10 |
13 |
17 |
|
|
D2 |
max |
7.5 |
7 |
9 |
11 |
12.5 |
16.5 |
|
min |
6.5 |
5.5 |
7.5 |
9 |
10.5 |
14.5 |
|
|
H |
max |
19 |
20 |
26 |
33 |
39 |
51 |
|
min |
16 |
18 |
24 |
30 |
36 |
48 |
|
|
h |
max |
4 |
4.6 |
6.5 |
8 |
10 |
12 |
|
min |
3.3 |
3.2 |
4 |
5 |
6.5 |
8 |
|
|
y |
max |
3 |
1.6 |
2.3 |
2.3 |
2.8 |
4.4 |
|
min |
2.5 |
1.1 |
1.5 |
1.5 |
2 |
3.6 |
|
|
k |
max |
9.3 |
10.5 |
13 |
17 |
20 |
25 |
|
min |
8.3 |
8.5 |
11 |
15 |
18 |
23 |
|
FAQ:
Q1: What are stainless steel butterfly screws used for?
A: They are used in applications requiring frequent adjustment or removal, such as machine panels, enclosures, fixtures, and DIY assemblies.
Q2: When should I use a Butterfly Screw instead of a standard Hex Machine Screw?
A: Use a Stainless Steel Butterfly Screw when the application requires regular manual adjustment or if the assembly needs to be taken apart frequently. If the fastener is in a tight space where a tool cannot fit, the wing design is also highly beneficial.
Q3: Do these screws vibrate loose easily?
A: While hand-tightened screws are generally more susceptible to vibration than those tightened with a power tool, the precision threads on our fasteners provide a snug fit. For high-vibration environments, we recommend using a spring washer in conjunction with the butterfly screw.
Q4: Are these available in different wing shapes?
A: Yes, our standard follows the DIN 316 specification, which features the classic rounded "American" style wing. We also offer various wing spans to provide different levels of leverage depending on your torque requirements.
Q5: Are custom sizes or thread types available?
A: Yes. Custom sizes, thread specifications, and finishes can be manufactured upon request to meet specific application requirements.
