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Knurled Nut Spec Table
Knurled Nut Specifications — 5 sizes
A knurled nut with textured surface for easy hand turning, used for precision adjustments on instruments and electronics.
Practical Notes
- Designed for hand turning — over-tightening with tools destroys the knurl pattern and grip.
- Low torque for fine adjustment. Use threadlocker in vibration or loaded applications.
Selection Guide
For hand-turned fine adjustments — camera equipment, lab instruments, 3D printer bed leveling. Knurling pattern provides grip. Available in brass, stainless steel, and aluminum.
Knurled Nut
5 sizes| Nominal | d | P | H (Height) | B (Wrench) | Other |
|---|---|---|---|---|---|
| M3 | 3 | 0.5 | 6 | - | - |
| M4 | 4 | 0.7 | 8 | - | - |
| M5 | 5 | 0.8 | 8 | - | - |
| M6 | 6 | 1 | 10 | - | - |
| M8 | 8 | 1.25 | 12 | - | - |
Key Features
- Outer knurling (diamond/straight pattern) maximizes bare-hand grip
- Low-profile form factor for hand operation in confined spaces
- Made in brass/stainless/aluminum; also used as molded inserts for injection molding
Key Applications
Camera/optical equipment adjustment, lab instrument fine-tuning, 3D printer bed leveling, electronics thumbscrews, lighting fixtures
STEP File Downloads
Free 3D CAD models (STEP AP214). Built to real standard dimensions; threads are simplified (plain shank) per free-library convention.
DownloadM3.step
All sizes · CAD guide →FAQ
What material is best for knurled nuts?
Brass — most common due to good machinability and corrosion resistance. Stainless for strength and corrosion resistance; aluminum for weight savings.