Industrial Fastener · Nuts Series
Nylon Insert Lock Nut
Nylon insert lock nuts have a polyamide ring at one end. As the nut is threaded onto the bolt, the bolt deforms the nylon, generating friction that resists loosening from vibration. DIN 985 is the standard (lower height) version; DIN 982 is the taller version.
Product Overview
Nylon Insert Lock Nut sourcing essentials
Nylon insert lock nuts have a polyamide ring at one end. As the nut is threaded onto the bolt, the bolt deforms the nylon, generating friction that resists loosening from vibration. DIN 985 is the standard (lower height) version; DIN 982 is the taller version.
DIN 985 (low), DIN 982 (high), ISO 10511, ISO 7040
5, 8, 10
Nylon insert lock nuts have a polyamide ring at one end. As the nut is threaded onto the bolt, the bolt deforms the nylon, generating friction...
Inspection records, lot labels, certificate options, and destination-ready packing.
Technical Data
Specification range
Final dimensions, mechanical properties, finish, and packing are confirmed against the RFQ and applicable standard.
| Standards | DIN 985 (low), DIN 982 (high), ISO 10511, ISO 7040 |
|---|---|
| Property Class | 5, 8, 10 |
| Size Range | M3 – M48 |
| Temperature Limit | Continuous service typically up to ~120 °C (limited by nylon) |
| Reusability | Limited — typically 5-10 reuse cycles before locking torque drops significantly |
Common surface finishes
Select an option to review its sourcing note. Exact coating system, thickness, and corrosion requirement are confirmed with the order.
Quality Control
Checked before consolidation and export
Each order is matched to the specified standard and verified at practical control points before shipment.
RFQ confirmation
Standard, size, grade, pitch, finish, certificates, packing, and destination are locked before production.
Lot verification
Critical dimensions, thread fit, markings, finish appearance, and packing labels are sampled and recorded.
Shipment approval
Photos and required reports are organized before consolidated loading and export documentation.
Buyer Questions
Frequently asked questions
How many times can a nylon lock nut be reused?
Industry guidance suggests 5-10 cycles before the prevailing torque drops below specification. For critical safety applications (lifting equipment, transport), use a new lock nut on each installation.
Can nylon insert lock nuts be used at high temperature?
Standard nylon (PA66) has a continuous service temperature of around 120 °C. Above this, the nylon softens and locking action is lost. For higher temperatures, use all-metal lock nuts (DIN 980), wedge-lock washers, or thread-locking adhesive.
Ready to quote Nylon Insert Lock Nut?
Send the standard, size, grade, finish, quantity, packing requirement, and destination. Availability and lead time are confirmed with the inquiry.