Stainless Steel Dog Point Grub Screw - Grade 202, 304, 316, A2, A2-70
A dog point grub screw, also referred to as a set screw, is a cylindrical fastener without a head. Its purpose is to securely and accurately position parts by engaging with a pre-drilled hole or groove. These screws are often utilized in machinery and automated assembly to attach rotating components, such as gears, to shafts, or to act as a stop for precise positioning.
Technical Specifications – Dog Point Grub Screw
Here is a summary table for Dog Point Grub Screws:
| Parameter | Details
|
| Name | Dog Point Grub Screw |
| Standard | DIN 915 / ISO 4028 |
| Head Type | Headless (Socket Set Screw) |
| Drive Type | Internal Hex (Allen Key) |
| Tip Type | Extended cylindrical flat end (Dog Point) |
| Variants | Full Dog Point / Half Dog Point |
| Common Sizes (Metric) | M2.5 to M16 (Length: 6mm to 60mm) |
| Common Sizes (Imperial) | #2 to 3/8″ (Length: 1/8″ to 2″) |
| Materials | Alloy Steel (45H / Grade 12.9 / 14.9), Stainless Steel (A2 / A4 / 18‑8) |
| Finishes | Black Oxide, Plain, Zinc, Passivated Stainless |
| Primary Use | Precise location into a mating hole or groove |
| Applications | Gears, pulleys, rotating shafts, tooling, fixtures |
| Key Advantages | Accurate positioning, anti-rotation, no surface damage, flush installation |
- Precise alignment and repeatable positioning in rotating or linear applications.
- Flush, headless installation no protruding heads.
- Ease of use with hex key; reduced stripping risk compared to slotted types
- Better stability the dog point resists loosening during operations.
- You need positive mechanical location into a shaft groove or hole (rather than relying on friction alone).
- You require repeatable assembly or precise indexing.
- You want to avoid marring fragile mating surfaces or distributing load evenly.
- Dog‑Point Grub Screw = socket head, headless fastener with dog‑point tip.
- Compliant with DIN 915 / ISO 4028, available in metric and imperial sizes.
- Two tip types: full dog (longer) and half dog (shorter).
- Materials include high-strength alloy steel and stainless steel.
- Best for precision, location, and secure holding in rotating/locating applications.
Technical Specifications – Dog Point Grub Screw
| Tip Type | Description | Ideal For |
| Cup Point | Threaded, cupped tip | General holding, friction |
| Cone Point | Sharp, tapered tip | More aggressive embedding |
| Flat Point | Flat contact surface | Mild pressure, general use |
| Dog Point (Full/ Half) | Smooth protruding tip into hole or groove | Precise location, repeatability |
A grub screw with a dog point features a smooth, non-threaded cylindrical tip that may be flat-faced. This projection is designed to fit perfectly into a pre-machined hole or groove on the mating part, ensuring accurate axial alignment and preventing any sideways motion.
Standard
DIN 915 / ISO 4028
Heat Treated
~45 HRC
Grade
Stainless Steel (A2/A4 )
Size
#2 to 3/8″ (Length: 1/8″ to 2″)
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