Product Description
M4 A2 Stainless Steel Wing Bolts / Butterfly Screws DIN 316
M4 stainless steel wing bolts, also known as butterfly screws, feature a winged head for easy tightening and loosening by hand. They are useful for assemblies that need regular adjustment or removal without tools.
Manufactured from A2 stainless steel for corrosion resistance, these metric wing screws have an M4 x 0.7 coarse thread. Suitable applications include removable panels, brackets, clamps and adjustable fittings.
Technical Specifications
| Thread Size | M4 |
|---|---|
| Nominal Thread Diameter | 4mm |
| Thread Pitch | 0.7mm metric coarse |
| Material | A2 stainless steel |
| Standard Reference | DIN 316 |
| Head Style | Wing / butterfly head |
| Tightening Method | By hand |
American Form Head Dimensions
| Measurement | Dimension |
|---|---|
| Maximum Width Across Wings | 21mm |
| Head Height | 9–11mm |
| Head Base Diameter | 7–9mm |
Selecting Your Wing Bolt
Select the required length and pack size from the available options. Screw length is measured from beneath the head to the end of the threaded shaft. Use with a matching M4 x 0.7 nut or tapped hole.
Please note: Head dimensions shown are for the American form and are provided as a guide. Please contact us before ordering if dimensions or head clearance are critical to your application.
