The Secret of Nut Heat Treatment
Jan 13, 2026
The Art of Giving Nuts a Spa Treatment
Heat treatment of nuts is like giving metal a deep conditioning treatment, transforming the material through precise temperature control. A common process involves two steps: quenching and tempering. First, the nut is immersed in a high-temperature bath at around 800℃, then rapidly quenched in cold water to increase hardness; finally, it is gently baked at 400℃ to eliminate internal stress, ultimately achieving an ideal balance of strength and flexibility.
The Amazing Changes Brought About by Heat Treatment
Nuts treated with this process gain three superpowers:
Deformation Resistance: Can withstand 3 times the original tightening force
Wear Resistance: Service life extended by 5-8 times
Break Resistance: Maintains good toughness even at -30℃
Secrets to Extending Service Life
Even after strengthening treatment, the following precautions should be taken when using them:
Avoid mixing with bolts of different materials
Regularly check thread wear
In humid environments, use with an anti-rust coating
Exceeding the tightening torque will destroy the heat treatment effect.
