
Titanium Grade 5 Nylon-insert lock nuts
ISO 7040ASTM B348
Titanium Grade 5 nylon-insert nuts combine a specified alloy body with polymer-generated prevailing torque. Insert temperature, chemical compatibility and reuse performance define the complete nut’s service, including when the body is selected for higher strength than commercially pure titanium at low density.
- MOQ
- 100PCS
- Samples · typical
- ~20 days
- Production · typical
- 25–35 days
- Heat treatment
- Annealed
EN 10204 3.1 MTC + heat-number traceability
Which standard is on your order?
Raw Material Specifications
Threads · Metric
Threads · Inch
Dimension Reference
Heat Treatment
AnnealedAnnealing reduces working stresses and restores ductility, with atmosphere and surface control limiting contamination during heating.
What we can make in Titanium Grade 5
Nylon insert
Use where a prevailing-torque nut helps retain an adjustment or mounting connection without a separate locking part. The bolt must engage through the nylon ring for the insert to act.
Metal body
The metal threads carry the axial clamp load. Select the body pattern and strength for that load, then check the additional running torque from the insert when setting the tightening process.
Temperature & chemicals
Choose this form for equipment temperatures and chemicals compatible with the insert. A nickel-alloy body does not make nylon suitable for furnace service; use an all-metal locking arrangement for elevated-temperature joints.
- Locking element
- Nylon insert
- Drive
- External hex
- Threads
- Metric · Inch
- Service limit
- Controlled by the insert
- Final condition
- Annealed
- Inspection
- Insert retention · Prevailing torque · Dimensions
Manufacturing route
Small lots use machined blanks. Volume nut blanks use a forming route compatible with the alloy before machining the bore and tapping.
Heat treatment & final condition
Forming and thermal processing require contamination control. The final surface is cleaned before dimensional and material acceptance.
Finished geometry
The nylon insert is installed after metal heat treatment and finishing. Prevailing torque is checked on the complete nut, including the specified reuse requirement.
Where Titanium Grade 5 fits — and what matters

Industrial Machinery & Automation
Machine frames and positioning fixturesTitanium Grade 5 nylon-insert lock nuts retain the threaded mountings on machine frames and positioning fixtures using insert-generated prevailing torque. The nylon insert defines the temperature and reuse limits of the complete nut. Alignment, operating cycles and replacement access define the working interface.

Pumps, Valves & OEM
Actuator mounts and pump baseplatesTitanium Grade 5 nylon-insert lock nuts retain the threaded mountings on actuator mounts and pump baseplates using insert-generated prevailing torque. The nylon insert defines the temperature and reuse limits of the complete nut. Repeated maintenance makes fit, engagement and access part of the component specification.

Automotive & EV Manufacturing Equipment
Assembly fixtures and test-rig framesTitanium Grade 5 nylon-insert lock nuts retain the threaded mountings on assembly fixtures and test-rig frames using insert-generated prevailing torque. The nylon insert defines the temperature and reuse limits of the complete nut. Repeated tooling changes require consistent seating and repeatable assembly dimensions.
Same nylon-insert lock nut. Different material priorities.
Titanium Grade 5 material dataTitanium Grade 2
Low mass, corrosion resistance and commercially pure titanium formability.
- Connection priority
- Metal-body load capacity and polymer-generated prevailing torque
- Commercially pure titanium
- The Titanium Grade 2 body and the nylon insert need separate acceptance. Cleaner, moisture and temperature exposure reach the insert at the mating thread; its rated condition controls prevailing-torque service.
Inconel 718
Precipitation-hardened strength for compact, highly loaded connections.
- Connection priority
- Metal-body load capacity and polymer-generated prevailing torque
- Strength after aging
- The Inconel 718 body and the nylon insert need separate acceptance. Cleaner, moisture and temperature exposure reach the insert at the mating thread; its rated condition controls prevailing-torque service.
From drawing to documented delivery




- 01Drawing & BOMForm, dimensions and quantity
- 02Material & formingGrade, heat and manufacturing route
- 03Final inspectionGeometry, threads and ordered tests
- 04Documents & dispatchLot records and identified packing
Order documents
- Material identity
- UNS R56400 · heat number · ordered condition
- Final-part acceptance
- Grade chemistry, surface condition and the ordered mechanical requirements. Insert identity and complete-nut prevailing-torque results.
- Dimensional record
- Insert retention · Prevailing torque · Dimensions
- Traceability
- EN 10204 3.1 material certificate · production lot · identified packing
Build your Titanium Grade 5 nylon-insert lock nut enquiry
Questions about Titanium Grade 5 nylon-insert lock nuts
Can a heat-resistant body make the nylon nut suitable for a hot joint?
The nylon remains the temperature-limiting part. Use the actual insert rating and required prevailing-torque performance; a hot-service metal grade does not extend the polymer’s limit.