Key Features:

12.9 Grade Ultra-High Strength
Hardness reaches 39-44HRC, tensile strength ≥1220MPa, suitable for high-strength fastening applications, less prone to stripping and breakage.

Titanium-plated Gold Surface Treatment
Enhances wear and corrosion resistance, while presenting a decorative gold metallic texture, both aesthetically pleasing and practical.

Counterhead (Flat Head) Design
90° countersunk angle, flush with the workpiece surface after installation, suitable for assembly applications requiring a smooth appearance.

Hard Alloy Steel Material
Combines high hardness and good toughness, resistant to fatigue and deformation over long-term use.

Internal Hex Actuation Method
Can be tightened at high torque using an Allen wrench, suitable for space-constrained locations.

Thread Specifications: M2, M2.5, M3, M4, M5

Length Range: 4mm – 35mm

Applications: Precision electronic products, circuit board mounting

Mechanical equipment, mold installation

Counter-drilling assembly of aluminum alloy or plastic housings

Furniture assembly, bicycle modification

DIY crafts, model making

Shipping & Logistics: Ships within 1-2 business days after payment

Supports eBay Global Logistics Program (applicable regions)

Multiple orders can be combined for shipping costs.