
PA66 Nylon Hex Nuts
| Standard | DIN 934 ref · ISO 4032 ref · ASTM D4066 ref |
|---|---|
| Material | PA66 |
| Strength Grade | — |
| Size Range | M2-M8 |
| Surface Treatment | Natural / Black / UV Stabilized |

| Standard | DIN 934 ref · ISO 4032 ref · ASTM D4066 ref |
|---|---|
| Material | PA66 |
| Strength Grade | — |
| Size Range | M2-M8 |
| Surface Treatment | Natural / Black / UV Stabilized |
Product Description
PA66 nylon hex nuts are lightweight, non-corrosive and electrically insulating nuts used with nylon screws, polymer washers and light-duty metal screws where steel nuts are unnecessary or unsuitable. They are supplied with ISO 4032 / DIN 934 reference dimensions and ASTM D4066 material reference for M2-M8 assemblies.
These nuts are selected for electrical panels, rail interior trim, solar combiner boxes, instrumentation covers, signage, lightweight brackets and plastic hardware kits. PA66 helps reduce weight and avoids galvanic corrosion, but it should not be used as a direct substitute for steel nuts in structural, high-preload or high-temperature joints.
Natural PA66 is common for general electrical and clean assemblies, black PA66 is used for appearance and light control, and UV-stabilized material can be specified for outdoor or renewable energy equipment exposure. Thread fit, moisture absorption, torque limit and service temperature should be confirmed before production.
| Product type | PA66 nylon hex nuts / plastic insulating nuts |
|---|---|
| Standards | ISO 4032 reference / DIN 934 reference / ASTM D4066 material reference |
| Material | PA66 nylon |
| Strength grade | Polymer nut, not a steel strength class |
| Size range | M2-M8 |
| Common models | M2, M2.5, M3, M4, M5, M6, M8 |
| Thread type | Metric internal thread by standard or drawing |
| Surface finish | Natural / Black / UV-stabilized PA66 |
| Matched hardware | PA66 screws, PA66 flat washers and light-duty non-metallic assemblies |
| Documentation | CoC, material data sheet and dimensional report on request |

| Parameter | M1 | M1.2 | M1.4 | M1.6 | M2 | M2.5 | M3 | M3.5 | M4 | M5 | M6 | M7 | M8 | M10 | M12 | M14 | M16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P | 0.25 | 0.25 | 0.3 | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1 | 1|1.25 | 1|1.25|1.5 | 1.25|1.5|1.75 | 1.5|2 | 1.5|2 |
| e/min | 2.71 | 3.28 | 3.28 | 3.41 | 4.32 | 5.45 | 6.01 | 6.58 | 7.66 | 8.79 | 11.05 | 12.12 | 14.38 | 18.9 | 21.1 | 24.49 | 26.75 |
| k/max | 0.8 | 1 | 1.2 | 1.3 | 1.6 | 2 | 2.4 | 2.8 | 3.2 | 4 | 5 | 5.5 | 6.5 | 8 | 10 | 11 | 13 |
| k/min | 0.55 | 0.75 | 0.95 | 1.05 | 1.35 | 1.75 | 2.15 | 2.55 | 2.9 | 3.7 | 4.7 | 5.2 | 6.14 | 7.64 | 9.64 | 10.3 | 12.3 |
| s/max | 2.5 | 3 | 3 | 3.2 | 4 | 5 | 5.5 | 6 | 7 | 8 | 10 | 11 | 13 | 17 | 19 | 22 | 24 |
| s/min | 2.4 | 2.9 | 2.9 | 3.02 | 3.82 | 4.82 | 5.32 | 5.82 | 6.78 | 7.78 | 9.78 | 10.73 | 12.73 | 16.73 | 18.67 | 21.67 | 23.67 |
Engineering references
Selection
PA66 nylon nuts are used in rail interiors, covers and trim assemblies where low weight, electrical insulation and corrosion-free hardware are useful. Confirm fire, smoke and toxicity requirements separately when applicable.
Railway fastenersUV-stabilized PA66 nuts can support PV combiner boxes, light brackets and electrical enclosures where non-conductive hardware is specified. Avoid using polymer nuts for structural clamp loads.
Renewable energy fastenersM2-M6 nylon nuts are common in instruments, signs, covers and plastic housings where electrical isolation and low tightening torque are required.
Industrial equipment fastenersAssembly





Manufacturing
FAQ
No. PA66 nuts are for light-duty, insulating and corrosion-free assemblies. They should not replace steel nuts in structural or high-preload joints.
They can be used outdoors when the correct UV-stabilized PA66 grade is selected and the service temperature, moisture and load are suitable.
Common sizes are M2, M2.5, M3, M4, M5, M6 and M8. Custom dimensions can be reviewed by drawing.
Yes. PA66 nylon nuts can be supplied with PA66 screws and flat washers as non-metallic fastener kits.
Send size, standard or drawing, color, UV requirement, quantity, mating screw material, torque condition and certificate needs.
Send size, color, UV requirement, standard or drawing, quantity and matching screw or washer needs. We can quote M2-M8 PA66 nylon nuts for electrical, railway and renewable energy equipment.
Get engineering support and pricing for this product — our team responds within 24 hours.