M3 x 4mm Allen Grub Screw (High Tensile) - 10 Nos
₹23.73 (excl. GST)
- SKU:
- FHT-SCREWSOC-GRBMEM3X4
- Brand:
- Fastdep
- Category:
- M3 Allen Grub Screw
- Qty / Pack:
- 10 per pack
- 🟢 In Stock:
- 99 Packs
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Product Details #
M3 headless grub screws with cup point per DIN 916 / ISO 4029 and internal hex drive in alloy steel hardness class 45H. Shaft locking and component fixation at 3mm diameter.
Specification #
| Standard | DIN 916 / ISO 4029 (EN ISO 4029) |
| Material | Alloy Steel |
| Thread | Coarse (standard) |
| Grade | 12.9 |
| Coating | Black oxide |
| Head Type | Headless (no head) |
| Drive Type | Hexagon socket (Allen key/hex wrench) |
| Point Type | Cup point (concave depression) |
Dimension #
| Size | Thread Dia (d) | Pitch | Length(L) | Thread Length (b) |
|---|---|---|---|---|
| M3 | 2.87-3.00 | 0.5 | 3mm - 20mm | Full |
| M4 | 3.85-4.00 | 0.7 | 4mm - 30mm | Full |
| M5 | 4.85-5.00 | 0.8 | 4mm - 40mm | Full |
| M6 | 5.85-6.00 | 1.0 | 5mm - 50mm | Full |
| M8 | 7.83-8.00 | 1.25 | 6mm - 50mm | Full |
- All dimensions in mm, tolerance +/- 0.01 mm. Additional dimensions available on request.
Benefits #
Grub screws at 3mm provide a compact shaft-locking solution for small mechanisms and precision instruments. The cup point creates a controlled indentation in the mating shaft, generating a positive mechanical lock against rotational slip and axial displacement. The headless design installs entirely within the threaded bore, eliminating protrusions that interfere with adjacent components. Hardness class 45H ensures effective indentation on most shaft materials. At this diameter, grub screws are suited to light-duty shaft fixation in instruments, small gears, and collars.
Common Applications #
Common applications for M3 grub screws include:
- Precision instrument adjustment locking
- Small gear and collar fixation on shafts
- Knob and handle attachment
- Electrical terminal connections
- Light-duty coupling assembly
The product images are for illustration purposes only. Actual products may vary by part number, size, model, color, etc. Customers unfamiliar with the products are encouraged to contact our support team for exact images, if available. This product comes with a warranty against manufacturing defects; refer to the warranty policy for claim instructions. id/267, /product/allen-grub-screw-m3x4mm.md, /catalog/m3-allen-grub-screw.md,
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