Prevailing Torque Locknuts

Prevailing Torque Lock nuts continue to resist loosening, even while sustaining substantial friction during assembly. These PT fasteners are the optimal choice for applications that routinely sustain heavy vibration and shock, extreme temperatures, and numerous loading cycles without a moment’s rest. Lok-Mor has been setting the standards for locknut quality since 1982, and our Free Spinning Locknut and Prevailing Torque line up passes the test.

 

 

 

 

 

DURA-FLEX

All metal prevailing-torque lock nut with six flex locking elements.

• Materials: Steel grade 2-5-8, 2H/DH, Monel, brass, bronze, and stainless steel
• Finish: Plain, zinc, and cadmium, as well as other platings and coatings

 

 

 

 

 

 

360° DOME

All metal, prevailing-torque locknut with a dome collar on top, which creates a 360 locking frictional thread interference

• Materials: Steel grade 2-5-8, 2H/DH, Monel, brass, bronze, and stainless steel
• Finish: Plain, zinc, and cadmium, as well as other platings and coatings

 

 

 

 

 

 

C-LOC (Collar)

All metal prevailing-torque locknut, with oval locking collar.

• Materials: Steel grade 2-5-8, 2H/DH, Monel, brass, bronze, and stainless steel
• Finish: Plain, zinc, cadmium, and mechanical galvanized, as well as other platings and coatings

 

 

 

 

 

 

HEX-LOC (Reversible)

All metal prevailing torque lock nut with deflected threads at the center of the nut.

• Materials: Steel grade 2-5-8, 2H/DH, Monel, brass, bronze, aluminum alloys, and stainless steel
• Finish: Plain, zinc, cadmium, and mechanical galvanized, as wel as other platings and coatings

 

 

 

 

 

 

TRI-LOC

An all metal prevailing-torque lock nut with three locking elements deflected in the top thread.

• Materials: Steel grade 2-5-8, 2H/DH, Monel, brass, bronze, aluminum alloys, and stainless steel
• Finish: Plain, zinc, cadmium, hot dip galvanized, and mechanical galvanized, as well as other platings and coatings

 

 

 

 

 

 

DOME-LOC

All metal prevailing torque dome style locknut

• Materials: Steel grade 2-5-8, 2H/DH, Monel, brass, bronze, aluminum alloys, and stainless
• Finish: Plain, zinc, cadmium, and mechanical galvanized, as wel as other platings and coatings

 

 

 

 

 

 

360-LOC (Special Reversible)

All metal prevailing torque, two way top lock lock nut. Its 360 locking element creates frictional thread interface from the top to the bearing surface of the nut.

• Materials: Steel grade 2-5-8, Monel, brass, bronze, and stainless steel
• Finish: Plain, zinc, cadmium, and mechanical galvanized, as well as other platings and coatings

 

 

 

 

 

 

O-LOC (Oval)

An all metal prevailing-torque locknut.

• Materials: Steel grade 2-5-8, 2H/DH, Monel, brass, bronze, aluminum alloys, and stainless steel
• Finish: Plain, zinc, cadmium, and mechanical galvanized, as well as other platings and coatings

 

 

 

 

 

 

S.T.-LOC (Side Top Lock)

All metal prevailing torque locknut with positive thread deflection on two sides of the top.

• Materials: Steel grade 2-5-8, 2H/DH, Monel, brass, bronze, and stainless steel
• Finish: Plain, zinc, cadmium, and mechanical galvanized, as well as other platings and coatings

 

 

 

 

 

 

COLUMBIAN

All metal prevailing-torque with slotted locking element on the side of the nut, which creates frictional thread interference.

• Materials: Steel grade 2-5-8, 2H/DH, Monel, brass, bronze, aluminum alloys, and stainless steel
• Finish: Plain, zinc, and cadmium, as well as other platings and coatings

 

 

 

 

 

 

PEL-LOC® (Nylon Pellet)

A prevailing torque two-way locknut, with a nylon pellet that extends through the wall of the nut, creating frictional thread interference.

• Materials: Steel grade 2-5-8, 2H/DH, Monel, brass, bronze, aluminum alloys, and stainless steel
• Finish: Plain, zinc, cadmium, and mechanical galvanized, as well as other platings and coatings

 

 

 

 

 

 

FLANGE TRI-LOC

All metal prevailing-torque locknut with three locking elements deflected in the top thread.

• Materials: Steel grade 2-5-8 and stainless steel
• Finish: Plain, zinc, hot dip galvanized, and cadmium, as well as other platings and coatings

 

 

 

 

 

 

N-LOC (Nylon Insert)

Available in large sizes up to 6 inches in diameter, this locknut features a nylon insert locking element.

• Materials: Steel grade 2-5-8, 2H/DH, Monel, brass, bronze, stainless steel and a range of exotic metals
• Finish: Plain, zinc, cadmium, hot dip galvanized, and Xylan/Teflon, as well as and other platings and coatings