DIN 316 Wing Screws
We supply DIN 316 wing screws in A2 stainless steel from M4 to M12, plus A4 stainless steel and zinc plated malleable cast iron. Wing screws have two flat wings for hand tightening without tools, used on access covers, clamps and adjustable fittings.
Also known as: wing screw, butterfly screw, wing bolt, butterfly bolt, hand screw.
DIN 316 dimensions
| Diameter | Pitch | e | h |
|---|---|---|---|
| M4 | 0.7mm | 20.0mm | 10.5mm |
| M5 | 0.8mm | 26.0mm | 13.0mm |
| M6 | 1.0mm | 33.0mm | 17.0mm |
| M8 | 1.25mm | 39.0mm | 20.0mm |
| M10 | 1.5mm | 51.0mm | 25.0mm |
| M12 | 1.75mm | 65.0mm | 33.5mm |
| M16 | 2.0mm | 73.0mm | 37.5mm |
Is DIN 316 available in stainless steel?
Yes - DIN 316 wing screws are available in A2 and A4 stainless steel and zinc plated malleable cast iron. Not every screw sold commercially as DIN 316 has the same wing form, so if the wing profile matters for your application, tell us when you enquire.
What is the difference between DIN 316 and DIN 315?
DIN 316 is the wing screw - a threaded screw with a wing head; DIN 315 is the matching wing nut. Both are tightened by hand without tools.
What are wing screws used for?
Anywhere a fixing is regularly done up and undone by hand - access covers, inspection hatches, clamps, jigs and adjustable brackets.
Need DIN 316 in a non-standard size or material?
Send us your drawing — specials quoted within 24 hours.