Grooved Pin Spec Table
This specification follows ISO (International Organization for Standardization) standards. ISO ensures cross-border compatibility, making it ideal for multinational projects, export equipment design, and global parts procurement.
A cylindrical pin with three longitudinal grooves that press-fit via elastic deformation. Offers higher shear strength than spring pins and is reusable.
Practical Notes
- Higher shear strength than spring pins — suitable for loaded joints like hinges and levers.
- Three evenly spaced grooves mean no directional concern, but maintain hole tolerance (H8–H9).
Selection Guide
Retained by elastic deformation of three axial grooves in standard drilled holes. Higher shear strength than spring pins (solid cross-section), no reaming like dowel pins. Suitable for light to medium loads — hinges, small gear shafts, appliance components.
ISOGrooved Pin
8 sizes| Nominal | d | L | Tolerance | Material | Standard |
|---|---|---|---|---|---|
| 1.5×6 | 1.5 | 6 | - | Mild Steel | ISO 8740 |
| 2×8 | 2 | 8 | - | Mild Steel | ISO 8740 |
| 2.5×10 | 2.5 | 10 | - | Mild Steel | ISO 8740 |
| 3×12 | 3 | 12 | - | Mild Steel | ISO 8740 |
| 4×16 | 4 | 16 | - | Mild Steel | ISO 8740 |
| 5×20 | 5 | 20 | - | Mild Steel | ISO 8740 |
| 6×25 | 6 | 25 | - | Mild Steel | ISO 8740 |
| 8×30 | 8 | 30 | - | Mild Steel | ISO 8740 |
Key Features
- Three axial grooves with raised edges grip hole walls for retention
- Press-fit directly into standard drill holes (H11–H12); no reaming required
- Types A/B/C/D/E distinguished by groove position (full/tip/center)
Key Applications
Hinge pins, appliance component shafts, small gear shafts, toy assembly, furniture fitting connections
FAQ
Difference between groove pin and spring pin?
Groove pins use 3 grooves for elastic retention with intact cross-section for higher shear strength. Spring pins have a C-slit — lower shear but easier insertion.