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Nylon Insert Self Locking Nuts
Prevailing torque fasteners with a nylon insert for vibration resistance and controlled locking performance
Product Overview
Nylon insert self locking nuts are manufactured by Zhejiang Chance & Union Import and Export Co., Ltd. with a nylon collar embedded in the nut body. The nylon insert deforms when a bolt is threaded in, creating prevailing torque that resists loosening under vibration and dynamic loading. These nuts are produced from carbon steel, alloy steel, stainless steel, and brass, with metric and imperial thread options. Production processes include cold heading, tapping, and insert assembly. The product line covers hex lock nuts, flange lock nuts, and non-standard custom locking nuts. Supported by a 33,350 m² facility and an annual production capacity of 9,500 tons, we supply OEM and ODM orders to more than 25 countries.
Core Advantages
Nylon Insert Control
Insert dimensions and material grades are controlled to maintain consistent prevailing torque across production batches.
Thread Accuracy
Tapping and thread gauging are performed to match class 6H and 2B tolerance requirements.
Heat Treatment and Plating
Quenching, tempering, and surface treatments are selected according to strength class and environmental exposure.
Production Capacity
Cold heading lines and automated insert assembly support high-volume orders with a 9,500-ton annual capacity.
Quality System
ISO9001 and IATF16949 certified processes with digital traceability from raw material to final inspection.
Service Response
A multi-to-one service team operates 340 days per year with pre-sales and after-sales response times under 12 hours.
Product Characteristics
Application Areas
Automotive
Chassis, suspension, exhaust, and battery pack assemblies subject to road vibration.
Industrial Machinery
Conveyors, pumps, compressors, and rotating equipment where fasteners must remain seated.
Electrical Equipment
Control panels, switchgear, and enclosures exposed to continuous low-amplitude vibration.
Agricultural Machinery
Tractors, harvesters, and implements operating under repeated shock and vibration loads.
Furniture and Appliances
Frames, hinges, and moving parts where thread loosening would affect function.
Renewable Energy
Solar tracking mounts and wind turbine access platforms subject to wind-induced vibration.
Usage Notes
Nylon insert lock nuts are intended for one-time use. The prevailing torque decreases after repeated installation and removal.
Operating temperature should be checked against the nylon insert grade. Prolonged exposure above the rated range may reduce locking performance.
Lock nuts should be installed with the nylon insert facing the mating part. Reversing the nut reduces or eliminates the prevailing torque effect.
Thread lubrication and installation speed can affect prevailing torque values. Controlled assembly is recommended for critical joints.
Storage in dry conditions is advised. Moisture and contaminants on the nylon insert may affect locking characteristics.
Frequently Asked Questions
What overall services can you provide for clients?
We provide global customers with one-stop fastener solutions covering the whole process from product R&D and sampling to mass production.
Do you offer non-standard customization service for fasteners?
Yes, we do. Supported by strong R&D and production capacity, we can customize special-shaped and non-standard fasteners with exclusive specifications according to customer drawings, parameters and application requirements.
Which countries and regions do your products export to? How many cooperative clients do you have?
Our products are exported to more than 25 countries worldwide, and we have served over 200 clients at home and abroad with extensive market coverage.
What production processes are applied to your products?
We adopt mature mainstream processes such as cold heading, hot forging and precision machining to guarantee product accuracy and structural strength.
What main fastener products do you supply?
We mainly deal in high-strength bolts, nuts, washers, pins and screws, and also provide all kinds of non-standard customized fasteners.
Leveraging the factory's robust R&D and production capabilities, we specialize in high-strength rivets bolts, nuts, washers, pins, screws, and various non-standard custom parts. As experienced Custom Nylon Insert Self Locking Nuts Suppliers, we provide flexible manufacturing solutions for different customer requirements. Our product range covers materials including stainless steel, alloy steel, aluminum alloy, copper, and special alloys, utilizing processes such as cold heading, hot forging, and CNC machining. Our products are exported to over 25 countries, serving more than 200 clients.
Chance & Union is committed to seamlessly connecting "Manufactured in China" with the international market, providing global customers with one-stop fastening solutions from R&D to mass production through professional technology and exceptional quality.
