From vibration resistance to extreme temperature resistance, our high-strength locking nuts can provide a solution. Our team of highly skilled engineers can also design, prototype, and manufacture nuts to meet your custom requirements.

Nylstop^® Self-Locking Nut

• The Nylstop^® nut is designed to stop nut and bolt disengagement during use. 
• The internal nylon ring deforms around the threads as the nut is twisted onto the bolt, ensuring a tight, vibration-resistant grip on the bolt.

Nylstop^® Nut brochure

DHE Series Nut

• A 12-point nut for extremely high torque control.
• Ideal for difficult reach applications.

DHE Series brochure

MHT Series Nut

• Low scatter locking torque, high-fatigue self-locking nut.
• A conical shaped nut, where the diameter of the upper part of the nut is slightly reduced.
• Six vertical slots will open gradually while the nut is screwed onto the bolt.
• The elasticity provided by the particular shape of the nut will ensure the required locking torque.

MHT Series brochure

PH Series Nut

• Small, thinwall, lightweight, self-locking and extremely strong.
• An aerospace-quality nut that is useful when space and weight are at a premium.

PH Series brochure

Custom Parts and Special Capabilities

In addition to a variety of self-locking nuts, Howmet Fastening Systems facilities have the engineering know-how and manufacturing capabilities of designing and producing customized parts for a wide range of applications. Contact us to find out how we can help.

Cold Forging Capability Brochure