5/8 5/16-18 Stainless steel K Nut SS304 SS316 A2 A4-81 Kep nuts Customized Size Plain surface

K-nuts, also known as K-caps or flower tooth nuts, are specialized fasteners designed for locking and preventing loosening. These nuts feature a movable flower tooth piece pressed into one end through a stamping process.

During the locking process, the elasticity of the floral teeth and their anti-slip properties create effective locking and anti-loosening capabilities. K-type axial precision locking nuts utilize free friction locking principles to secure workpieces, generating radial force between threads for reliable fixation.

• K-shaped profile: Side view reveals a distinctive K-shape contour
• Internal threading: Designed for compatibility with standard screws and bolts
• Dual openings: Semi-circular openings facilitate easy clamping and release

• Enhanced locking: Superior resistance to vibration and external forces
• Simplified installation: Dual openings enable easier mounting than traditional hex nuts
• Reduced wear: Additional friction minimizes thread wear, extending fastener life

• ISO 4032/4033: Hexagonal thin nuts (Product grades A/B)
• DIN 439: Hexagonal thin nuts (German Industrial Standard)
• ANSI B18.2.2: Hexagonal thin nuts (American National Standard)

Galvanizing provides a zinc coating for enhanced corrosion resistance and aesthetic appeal, available in silver-white, colored, or army green finishes after passivation.

Our packaging options include small packing, carton packing, and pallet configurations to meet various shipping and storage requirements.