DIN 653 Knurled Thumb Screws, Thin Type
We supply DIN 653 knurled thumb screws (thin type) in zinc plated free-cutting steel and brass from M3 to M10. The thin knurled head has a low profile for restricted spaces, hand-tightened for access panels, jigs and instrument work.
Also known as: thumbscrew, thumb screw, knurled screw, flat thumb screw, low head thumb screw.
DIN 653 dimensions
| Diameter | Pitch | dk | k | e |
|---|---|---|---|---|
| M3 | 0.5mm | 12.0mm | 2.5mm | 2.0mm |
| M4 | 0.7mm | 16.0mm | 3.5mm | 3.0mm |
| M5 | 0.8mm | 20.0mm | 4.0mm | 3.0mm |
| M6 | 1.0mm | 24.0mm | 5.0mm | 4.0mm |
| M8 | 1.25mm | 30.0mm | 6.0mm | 5.0mm |
| M10 | 1.5mm | 36.0mm | 8.0mm | 6.0mm |
What is the difference between DIN 653 and DIN 464 thumb screws?
Both have a knurled head for hand tightening. DIN 653 is the thin (low) type with a flat head for restricted spaces; DIN 464 is the high type with a taller, easier-to-grip head.
What are thin type thumb screws used for?
The low-profile head suits panels, covers and instruments where a tall head would foul adjacent parts, while still allowing tool-free hand adjustment.
What sizes do DIN 653 thumb screws come in?
The standard covers M3 to M10 with knurled head diameters from 12mm to 36mm. Send us your requirement for lengths and materials.
Need DIN 653 in a non-standard size or material?
Send us your drawing — specials quoted within 24 hours.