50Pcs DIN914 Grade 12.9 Hex Socket Cone Point Set Screws M2–M4

50-Piece DIN914 Grade 12.9 Hex Socket Cone Point Set Screws – M2, M2.5, M3 & M4

Upgrade your metalworking and DIY hardware kit with these precision-engineered DIN914 Grade 12.9 Hex Socket Cone Point Set Screws. Made from high-strength alloy steel with a black oxide finish, this 50-piece assortment covers the most popular metric sizes — M2, M2.5, M3, and M4 — so you have exactly what you need on hand for a wide range of fastening applications.

Key Features

• DIN914 Standard: Cone (dog) point design provides positive, secure locking grip and precise positioning in metalworking assemblies.
• Grade 12.9 Alloy Steel: Exceptional tensile strength for demanding industrial and DIY applications.
• Black Oxide Finish: Adds corrosion resistance and a professional appearance — no fading, no flaking.
• Hex Socket Drive: Compatible with standard Allen/hex keys for easy installation and removal even in tight spaces.
• Versatile Size Range: Includes M2, M2.5, M3, and M4 grub screws to suit shafts, pulleys, collars, gears, and more.
• 50-Piece Set: Generous quantity to keep your toolbox fully stocked for ongoing projects.

Specifications

Common Applications

• Securing pulleys, knobs, and gears onto shafts
• Mechanical assemblies and robotics
• 3D printer and CNC machine builds
• Metalworking, machining, and fabrication
• General DIY hardware and repair projects

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Frequently Asked Questions

Q: What is the difference between a set screw and a regular screw?

A: A set screw (also called a grub screw) is fully threaded with no external head — it sits flush or below the surface of the part. It is used to secure one object within or against another, such as fixing a gear or pulley onto a shaft, without protruding beyond the assembly.

Q: What does the DIN914 cone point mean and why does it matter?

A: DIN914 specifies a cone (sharp) point on the set screw tip. This cone point bites into the mating surface, creating a strong mechanical lock that resists rotation and axial movement — ideal for permanent or semi-permanent assemblies where maximum holding force is required.

Q: What Allen key size do I need for these hex socket set screws?

A: The hex socket drive size varies by screw diameter. As a general guide: M2 uses a 0.9mm hex key, M2.5 uses a 1.3mm hex key, M3 uses a 1.5mm hex key, and M4 uses a 2mm hex key. Always refer to the DIN914 standard chart for exact specifications.

Q: Are these screws suitable for outdoor or high-moisture environments?

A: The black oxide finish provides a degree of corrosion resistance suitable for general indoor and controlled environments. For prolonged outdoor or high-humidity exposure, applying a light oil or thread locker is recommended for added protection.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.