DIN915 Zinc Plated Alloy Steel Hex Socket Dog Point Set Screw
DIN915 zinc plated alloy steel hex socket dog point set screw is a precision locking fastener designed for secure positioning, shaft alignment, and vibration-resistant mechanical fixing. The DIN915 zinc plated alloy steel hex socket dog point set screw features a cylindrical dog point that fits into a mating hole or groove, providing accurate location control without excessive surface damage.
Made from high-strength alloy steel with zinc plating, the DIN915 zinc plated alloy steel hex socket dog point set screw offers reliable torque resistance, improved corrosion protection, and stable performance in machinery, automation equipment, tooling systems, and OEM industrial assemblies.

Product Overview
The DIN915 zinc plated alloy steel hex socket dog point set screw is used where accurate location and repeatable positioning are required. Its dog point design provides positive engagement with a prepared hole, making it suitable for shafts, collars, gears, pulleys, and sliding components.
This DIN915 zinc plated alloy steel hex socket dog point set screw uses an internal hex drive for efficient tightening in limited spaces. It is a dependable industrial fastener for high-load mechanical assemblies requiring precise locking and easy maintenance.
Product Specifications
| Item | Description |
|---|---|
| Standard | DIN915 |
| Product Name | DIN915 Zinc Plated Alloy Steel Hex Socket Dog Point Set Screw |
| Material | Alloy Steel |
| Thread Type | Metric Machine Thread |
| Head Type | Headless Set Screw |
| Drive Type | Internal Hex |
| Diameter Range | M3–M24 |
| Length Range | 4mm–80mm |
| Surface Finish | Zinc Plated |
| Strength Grade | 8.8 / 10.9 / 12.9 |
| Thread Direction | Right Hand |
| Packaging | Carton / Small Box / OEM Packaging |
| Customization | Size, coating, grade, point length, marking |
Technical Parameters
| Parameter | Value |
|---|---|
| Tensile Strength | 800–1,220 MPa, depending on grade |
| Yield Strength | 640–1,100 MPa |
| Hardness | HRC 22–39 |
| Density | 7.85 g/cm³ |
| Corrosion Resistance | Moderate to high with zinc plating |
| Operating Temperature | -40°C to 250°C |
| Thread Tolerance | 6g |
| Manufacturing Standard | DIN915 / ISO equivalent |
Materials and Manufacturing Process
The DIN915 zinc plated alloy steel hex socket dog point set screw is manufactured through controlled forming and machining processes. Production begins with premium alloy steel wire or bar material. Raw material is tested for chemical composition and mechanical suitability.
Cold forging forms the set screw blank, while CNC machining controls the dog point geometry when required. The internal hex socket is formed with precision tooling to ensure stable torque transmission. Thread rolling improves fatigue resistance and thread consistency. Heat treatment, including quenching and tempering, achieves the required strength grade.
After heat treatment, zinc plating improves corrosion resistance and surface appearance. Cleaning removes oil and residues. Inspection checks dimensions, socket depth, thread accuracy, hardness, surface finish, and packaging condition.
Each DIN915 zinc plated alloy steel hex socket dog point set screw is produced for consistent locking performance in industrial applications.
Applications of the Product
DIN915 dog point set screws are widely used in machinery, automotive systems, automation equipment, machine tools, gear assemblies, motor systems, conveyor equipment, hydraulic devices, industrial equipment, and manufacturing systems.
The dog point is especially useful where the screw must engage a hole or slot for accurate positioning. Therefore, it suits shaft collars, couplings, guide rails, fixtures, pulleys, and adjustable mechanical stops.
Why Choose This Product
This product provides high-strength alloy steel construction, accurate dog point engagement, reliable internal hex torque transmission, zinc-plated corrosion protection, and stable mechanical locking performance.
It supports OEM fasteners, bulk supply, custom dog point length, special coatings, strength grade options, and export packaging. The DIN915 zinc plated alloy steel hex socket dog point set screw is ideal for precision mechanical systems requiring repeatable alignment.
Why Choose Flybear
Flybear provides professional manufacturing and supply services for industrial fasteners.
Flybear offers advanced cold forming, CNC machining, heat treatment, inventory strength, custom production, engineering support, global supply ability, and technical consultation. We support OEM manufacturers, distributors, and industrial buyers with reliable fastening solutions based on drawings, samples, or technical specifications.
Quality Inspection and Control
Quality control includes chemical composition analysis, tensile testing, hardness testing, salt spray test, thread gauge inspection, dimensional inspection, socket geometry inspection, dog point inspection, surface inspection, and packaging inspection.
Production follows ISO quality system compliance to ensure stable batch quality and reliable industrial performance.
Selection Guide
When selecting DIN915 zinc plated alloy steel hex socket dog point set screws, consider material grade, diameter, length, dog point size, mating hole depth, load requirements, vibration level, indoor or outdoor environment, and corrosion level.
For high-load systems, Grade 10.9 or 12.9 is recommended. For higher corrosion exposure, confirm zinc thickness or select alternative coatings.
FAQ
What is DIN915?
DIN915 is a standard for hex socket set screws with dog point ends.
What is a dog point set screw used for?
It is used for accurate positioning by engaging a hole, slot, or groove.
Is zinc plating corrosion resistant?
Yes. Zinc plating improves corrosion resistance for indoor and moderate outdoor use.
Can custom dog point lengths be produced?
Yes. Custom point length, thread size, coating, and packaging are available.
How to request quotation?
Send size, grade, coating, quantity, drawing, and application requirements.
The DIN915 zinc plated alloy steel hex socket dog point set screw provides precise positioning, high strength, and reliable locking for industrial systems. For quotation, customization, and technical support, please Contact Us.
We always adhere to the philosophy of quality first and customer first, providing customers with high-quality fastener products and one-stop fastener solutions.




