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Whether you're dialing in a 3D printer, assembling custom jigs, or securing a removable panel, constantly reaching for a screwdriver slows you down. Our Goobetter stainless steel butterfly wing screws let you tighten and release by hand, no tools needed. The wide wing head gives you excellent grip and control, even with oily or gloved hands. Available in a full metric range from M3 all the way to M12, these A2-70 stainless thumb screws resist rust and corrosion indoors and out. Ideal for makers, woodworkers, machine operators, and anyone who values fast, reliable adjustments.
| Brand | Goobetter |
|---|---|
| Condition | New – retail packaging |
| Material | Stainless Steel (A2-70 / 304 equivalent) |
| Grade | A2-70 |
| Head Style | Butterfly / Wing |
| Drive Style | Hand (thumb screw) |
| Measurement System | Metric |
| Thread Size / Screw Size | M3, M4, M5, M6, M8, M10, M12 |
| Thread Type | Metric coarse (standard) |
| Available Lengths | 6 mm to 60 mm (varies by diameter) |
| Shape | Wing |
| Mandrel Material | Stainless Steel |
| Country of Origin | China |
| MPN | Does not apply |
📌 Choose your size from the variation listing. Length is measured from under the head to the end of the threaded shaft.
Are these screws strong enough for load‑bearing applications?
They are made from A2-70 stainless steel, which has a minimum tensile strength of 700 MPa. They work great for most DIY, fixture, and equipment panels. For structural or safety‑critical joints, always follow your engineering guidelines and torque specs.
Do the wing screws come with nuts or washers?
This listing is for the butterfly screws only. They will fit any standard metric nut or tapped hole of the same thread size, such as M6 nuts for M6 screws.
What length should I pick? Is it total length or thread length?
The length is measured from the underside of the wing head to the tip of the threaded shaft (functional thread length). This matches the standard way most metric screws are sized, so you can directly match your grip range.
Will these rust outdoors?
A2-70 stainless steel offers good resistance to moisture and mild chemicals. They're suitable for indoor applications and covered outdoor use. For constant saltwater exposure, consider upgrading to A4 (316) stainless, but for general outdoor projects, they hold up very well.
