M2.5 x 12MM Socket Head Cap (Allen) Screws (Black Oxide) provide superior strength and a clean, professional finish for your demanding mechanical assemblies. These precision fasteners feature an internal hex drive (Allen drive) that allows you to apply high torque, consequently ensuring a secure and vibration-resistant joint, which is often crucial in compact machinery. Fabricated from high-tensile steel, these cap screws meet strict metric standards, offering reliability far beyond standard machine screws. Furthermore, the socket head design requires minimal clearance around the head, making them ideal for tight spaces and recessed fastening applications. You can use these M2.5 screws in electronics, robotics, 3D printing, and fine instrument manufacturing where precision and strength are paramount.
Key Features:
- High Tensile Strength: Manufactured from alloy steel (Grade 10.9 or equivalent), these screws handle significant load stress without yielding, ensuring robust structural integrity.
- Socket Head Drive: The internal hex (Allen) drive minimizes slippage and permits greater tightening torque compared to Phillips or slotted drive types.
- Corrosion Resistance: The black oxide finish offers mild corrosion protection and reduces light reflection, providing a clean, aesthetic look.
- Precision Metric Threading: Features M2.5 metric coarse threading (0.45 mm pitch) for guaranteed fit and consistent fastening performance in standard metric tapped holes.
- Reduced Profile: The cylindrical socket head provides a low installed profile, crucial for components requiring close stacking or flush mounting.
Technical Specifications:
- Nominal Diameter (D): M2.5 (≈ 2.5 mm)
- Length (L): 12 mm (Measured from below the head)
- Thread Pitch: 0.45 mm (Coarse Thread)
- Material: Alloy Steel (typically Grade 10.9)
- Finish: SS Silver Finish
- Drive Type: Internal Hex Socket (Allen)
- Required Hex Key Size: 2 mm
Mechanical Specifications:
- Tensile Strength (Min): ≥ 1040 N/mm2 (Grade 10.9)
- Yield Strength (Min): ≥ 940 N/mm2 (Grade 10.9)
- Tolerance Class: 6g (Standard external thread fit)
- Fatigue Resistance: Excellent due to superior material quality and manufacturing process.
Dimensions:
- Head Diameter (Dk): ≈ 4.5 mm
- Head Height (k): ≈ 2.5 mm
- Thread Length (B): Full thread (for lengths 12mm and shorter)
- Tolerance Standard: ISO 4762 / DIN 912 (Standard dimensions for Socket Head Cap Screws)
Pinout and Wiring:
- Note: Since this is a mechanical fastener, pinout and wiring specifications are not applicable.
- Fastening Method: Use a 2mm Allen (hex) key to drive the screw into a matching M2.5 threaded hole or nut.
- Installation Tip: Apply a small amount of thread locker (e.g., Loctite) for assemblies subjected to constant vibration, however, ensure compatibility with surrounding materials.
Datasheet Reference:
- Download ISO 4762 / DIN 912 Mechanical Specification Data
Commonly Used in:
- Robotics and Automation: Fastening structural joints and mounting sensors or motors in lightweight robotic arms and chassis.
- Electronics Enclosures: Securing PCB standoffs and panel covers in compact electronic devices.
- 3D Printers and CNC Machines: Essential for building rigid frames and motion components where vibration resistance is key.
Applications:
- Precision Instrument Assembly: Provides secure fastening in optical equipment, cameras, and measurement tools.
- Model Making: Creating durable, high-strength connections in high-end hobby projects and scale models.
- Tight Tolerance Mounting: Used where space constraints prevent the use of bulkier hex head bolts.
Equivalent Models:
- DIN 912 M2.5 x 12: This is the direct international standard equivalent for this fastener type.
- ISO 4762 M2.5 x 12: The current harmonized ISO standard part number.
- A2 Stainless Steel M2.5 x 12: A corrosion-resistant alternative, although it typically offers lower tensile strength than alloy steel.
Package Includes:
- 10 x M2.5 x 12MM Socket Head Cap Screws (Black Oxide Finish)
Additional information
| Weight | 3 g |
|---|




Reviews
There are no reviews yet.