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Carbon steel
Cost-effective locking nuts with the specified class and protective finish.
DIN 985 Nylon Insert Lock NutRepresentative product image. Final dimensions, material, finish and packing follow the approved RFQ.
Lock nut sourcing
DIN 985 Nylon Insert Lock Nut
Low-profile nylon-insert prevailing-torque nuts for assemblies requiring resistance to loosening, with thread, strength, insert and service conditions confirmed per RFQ.
- DIN 985 edition or approved drawing
- Thread diameter, pitch and tolerance
- Nut property class, body material and insert material
- Operating temperature and service environment
- Finish, quantity, packing and destination
Catalogue ranges are RFQ guidance. Final compliance is controlled by the buyer-approved standard, drawing, sample and purchase order.
Quotation control
Quotation requirements
The exact standard or drawing, dimensions, material, finish, quantity and destination are confirmed before sourcing.
| Field | Product information | Order control |
|---|---|---|
| Requested designation | DIN 985 nylon insert lock nut | Standard or drawing confirmed |
| Locking function | Prevailing torque generated by the non-metallic insert | Confirmed per RFQ |
| Thread | Metric coarse or fine, tolerance and handedness | Confirmed per RFQ |
| Material / class | Steel property class or stainless grade with compatible insert | Confirmed per RFQ |
| Service conditions | Temperature, chemicals, reuse policy and assembly method | Confirmed per RFQ |
| Packing & documents | Quantity, labels, lot control and agreed inspection records | Confirmed per RFQ |
DIN 985:1987-05 is withdrawn. ISO 10511:2025 is a reference for prevailing torque thin hexagon nuts with a non-metallic insert. Confirm dimensions, load requirements, insert material, temperature limits and prevailing torque testing for the order. Catalogue references: DIN Media · ISO
Product overview
Specify the insert and service conditions
A nylon insert creates prevailing torque as the mating bolt passes through the locking section. The application temperature, chemicals, installation method and reuse expectations influence product selection.
Thread fit, property class and surface finish must still be matched to the mating bolt. Confirm any required prevailing-torque testing in the RFQ.
What to include in your RFQ
- DIN 985 edition or approved drawing
- Thread diameter, pitch and tolerance
- Nut property class, body material and insert material
- Operating temperature and service environment
- Finish, quantity, packing and destination
Common ordering range
Common RFQ selections
Common DIN 985 metric ordering directions. Final prevailing-torque and service requirements must be specified.
| Selection | Common enquiry options | Control |
|---|---|---|
| Common sizes | M4–M24; larger or fine-thread versions reviewed per RFQ | Confirmed per RFQ |
| Thread options | Metric coarse or fine; tolerance and handedness as specified | Confirmed per RFQ |
| Classes / grades | Steel classes 6, 8 or 10; stainless A2 or A4 | Confirmed per RFQ |
| Insert | Standard nylon insert; temperature or chemical requirements must be stated | Confirmed per RFQ |
| Finish options | Plain, zinc plated, zinc flake or stainless finish | Confirmed per RFQ |
| Performance control | Prevailing-torque test, reuse policy and assembly speed as agreed | Confirmed per RFQ |
Custom supply: Non-standard dimensions, materials, finishes and packing can be reviewed against a drawing, approved sample or complete specification.
Materials & applications
Options matched to the working environment
Options shown are sourcing directions, not a claim that every combination is stocked or interchangeable.
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Stainless steel
A2 or A4 bodies for corrosion-resistant assemblies, with insert suitability checked.
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Service review
Temperature, chemicals and installation speed are reviewed before supply.
Quality & order coordination
A controlled route from RFQ to shipment
Inspection, certificates, traceability and packing are supplied only when agreed in the quotation and order.
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Requirement check
Standard, drawing revision and critical dimensions are recorded.
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Source matching
Cluster suppliers are compared against the confirmed specification.
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Agreed inspection
Dimensions, finish and documents are checked to the agreed scope.
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Packing follow-up
Labels, protection, consolidation and shipment details are coordinated.
Product RFQ
Request a quotation for DIN 985 Nylon Insert Lock Nut
Send a drawing, specification, photo, product list or project requirement. Mark any field that cannot be substituted.
- DIN 985 edition or approved drawing
- Thread diameter, pitch and tolerance
- Nut property class, body material and insert material
- Operating temperature and service environment
- Finish, quantity, packing and destination
Fast quotation route
Send your product requirements
Include the product standard or drawing, size, material, finish, quantity and destination. Files up to 5 MB can be attached in the RFQ form.Maximum 3 MB per file.
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