SUNXULIMI M3 x 20mm Socket Head Cap Screws Bolts 12.9 Grade Alloy Steel Metric Machine Hex Socket Screw, Black Oxide Finish, Fully Threaded, 50PCS

SUNXULIMI M3 x 20mm Socket Head Cap Screws Bolts 12.9 Grade Alloy Steel Metric Machine Hex Socket Screw, Black Oxide Finish, Fully Threaded, 50PCS

Premium 12.9 Grade Alloy Steel: These M3 screws feature high-grade 12.9 alloy steel construction with exceptional tensile strength and durability, making them ideal for applications requiring compact yet high-strength fastening solutions in machinery and equipment Durable Black Oxide Coating: The protective black oxide finish provides reliable corrosion resistance and wear protection while creating a professional, low-glare appearance suitable for industrial applications Versatile 20mm Thread Length: Balanced length suitable for medium thickness materials and assemblies where reliable clamping force and vibration resistance are essential requirements Secure 2mm Hex Drive System: Internal hex socket design allows for high torque application during installation while minimizing stripping risk and ensuring proper fastening in precision applications Commercial 50-Pack Quantity: Practical packaging for manufacturing operations, maintenance departments, and professional workshops requiring reliable metric fasteners in substantial quantities Achieve superior fastening performance with these M3 x 20mm socket head cap screws, engineered from 12.9 grade alloy steel to provide maximum mechanical strength and reliability.

Technical Specifications:

Thread Diameter: 3mm

Screw Length: 20mm

Thread Pitch: 0.5mm

Head Diameter: 5.5mm

Head Height: 3mm

Drive Size: 2mm Hex Socket

Material: 12.9 Grade Alloy Steel

Finish: Black Oxide

Comprehensive Application Portfolio:

Industrial equipment assembly

Machinery manufacturing

Automotive components

Precision instruments

The black oxide surface treatment provides consistent corrosion protection while maintaining the screw's dimensional integrity.

The 2mm hex drive ensures positive tool engagement for precise installation and reliable performance.

Each screw is manufactured to strict quality standards to guarantee consistent performance in demanding environments.

Package includes 50 pieces of M3 x 20mm socket head cap screws, providing professional quantity for applications requiring versatile high-strength fasteners.