RUKO FLS-DIN373-M12-fein Hexagon Flange Nut M12 Fine Thread Steel Zinc-Plated Blue Passivated

When you need a reliable fastener for high-vibration industrial or automotive applications, a standard nut can loosen over time. The RUKO GMBH FLS-DIN373-M12-fein solves this with an integrated flange that distributes load and reduces the need for a separate washer.

Who is it for

This hexagon flange nut is for engineers, mechanics, and maintenance professionals who require secure fastening on M12 fine-thread bolts. It suits general fastening, industrial machinery, and automotive assemblies where vibration resistance and corrosion protection matter.

Main features

• DIN 373 standard hexagon flange nut with metric fine thread M12 x 1.25
• Steel construction with strength class 8 for high tensile applications
• Zinc-plated with blue passivation for corrosion resistance
• Integrated flange eliminates the need for a separate washer
• Wrench size 18 mm, nut height 12 mm, flange diameter 26 mm

Specifications

• Thread Size: M12
• Thread Pitch: 1.25 mm
• Material: Steel
• Strength Class: 8
• Surface Treatment: Zinc-plated, blue passivated
• Wrench Size: 18 mm
• Nut Height: 12 mm
• Flange Diameter: 26 mm
• Drive Type: External Hexagon
• Thread Type: Metric Fine Thread
• Thread Direction: Right-hand

Tips

Use a torque wrench to achieve the recommended tightening torque for M12 fine threads. The flange face provides a larger bearing surface, helping to prevent damage to softer materials.