DIN 939 Engineer Studs
M5 - M30
Steel grades to orderStainless steel to order
We supply DIN 939 engineer studs from M5 to M30, in steel and stainless grades quoted to your specification. An engineer stud is threaded at both ends with a plain centre: the metal end - 1.25 times the diameter long on DIN 939 - screws permanently into a tapped hole, and the nut end takes the fastening nut.
Also known as: engineer stud, engineers stud, stud bolt, double end stud, metal end stud.
DIN 939 dimensions
| Diameter | Pitch | Metal end thread (1.25d) | Nut end thread |
|---|---|---|---|
| M51 | 0.80mm | 6.5mm | 16mm |
| M6 | 1.00mm | 7.5mm | 18mm |
| M8 | 1.25mm | 10mm | 22mm |
| M10 | 1.50mm | 12mm | 26mm |
| M12 | 1.75mm | 15mm | 30mm |
| M14 | 2.00mm | 18mm | 34mm |
| M16 | 2.00mm | 20mm | 38mm |
| M18 | 2.50mm | 22mm | 42mm |
| M20 | 2.50mm | 25mm | 46mm |
| M22 | 2.50mm | 28mm | 50mm |
| M24 | 3.00mm | 30mm | 54mm |
| M27 | 3.00mm | 35mm | 60mm |
| M30 | 3.50mm | 38mm | 66mm |
- Nut-end thread lengths apply to studs up to 125mm long; studs from 125mm to 200mm carry 6mm more thread.
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