GFRP Composite Hex Nuts
| Standard | DIN 934 ref · ISO 4032 ref · OEM |
|---|---|
| Material | GFRP / PA66-GF |
| Strength Grade | — |
| Size Range | Project range |
| Surface Treatment | UV Stabilized |
01
Product Description
Product Description & Key Specifications
GFRP composite hex nuts are reinforced non-metallic nuts designed for use with composite bolts, threaded rods and insulating fastener systems. They provide electrical isolation and corrosion resistance where metal nuts are not suitable or where a complete non-conductive assembly is required.
GFRP / PA66-GF material offers better stiffness than unfilled plastic nuts while remaining non-metallic. These nuts are used in renewable energy equipment, electrical support frames, composite structures, corrosion-prone outdoor assemblies and applications where galvanic interaction with metal hardware must be reduced.
Because composite nuts do not behave like steel nuts, selection should confirm thread size, engagement length, torque limit, mating bolt material, UV exposure, temperature and load requirement. Project sizes can follow ISO 4032 / DIN 934 reference geometry or OEM drawings.
| Product type | GFRP composite hex nuts / FRP insulating nuts |
|---|---|
| Standards | ISO 4032 reference / DIN 934 reference / OEM drawing |
| Material | GFRP / PA66-GF |
| Strength grade | Composite material, project-specific mechanical properties |
| Size range | Project range by drawing |
| Common models | M8, M10, M12, M16, M20 and custom composite nut sizes |
| Thread type | Metric internal thread by drawing or composite bolt system |
| Surface finish | UV-stabilized composite surface |
| Matched hardware | GFRP composite bolts, GFRP flat washers and insulating assemblies |
| Documentation | CoC, material data sheet, dimensional report and test reports on request |
Dimensions & SpecificationsDIN 934 / ISO 4032
Technical Drawing
Dimensional Table
| 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
Technical resources
Review the applicable dimensions, drawing and standard relationship before confirming the ordered specification.02
Selection
Selection Advantages by Application
Renewable Energy Support Hardware
GFRP hex nuts are used in solar and outdoor electrical support assemblies where non-conductive fasteners, UV-stabilized materials and corrosion resistance are required.
Renewable energy fastenersComposite Bolt-Nut-Washer Sets
Composite nuts are matched with GFRP bolts and flat washers to build complete non-metallic fastener systems for electrical isolation and corrosion-prone assemblies.
Power generation fastenersChemical and Outdoor Equipment
FRP nuts can be specified in exposed equipment, water-treatment accessories and chemical environments when the composite material is compatible with the media and load.
Industrial equipment fasteners03
Assembly
Recommended Matching Products
04
Manufacturing
Manufacturing & Quality Control
Manufacturing CapabilityQuality Control
Molding or machining of GFRP / PA66-GF nut blanksComposite material verification and batch traceability
Internal thread production by drawing or composite bolt systemThread fit, across-flat dimension, nut height and bore inspection
UV-stabilized material selection for outdoor serviceSurface appearance and molding defect inspection
Composite nut supply alone or as bolt-nut-washer kitsAssembly fit check and sample torque review when specified
Project packaging for renewable and electrical assembliesCoC, dimensional report and material data sheet supplied on request
05
FAQ
Common Questions Before RFQ
What are GFRP composite hex nuts used for?
They are used in non-conductive and corrosion-resistant composite fastener assemblies, usually with GFRP bolts and washers.
Can GFRP nuts replace steel nuts?
Only when the joint is designed for composite fasteners. They are not direct substitutes for steel nuts in high-preload structural joints.
Are UV-stabilized composite nuts available?
Yes. UV-stabilized GFRP / PA66-GF material can be specified for outdoor renewable energy and electrical equipment applications.
What sizes can be supplied?
Project sizes are available by drawing, with common RFQs around M8, M10, M12, M16 and M20 composite fastener systems.
What information should be included in the RFQ?
Send thread size, nut dimensions, material, UV requirement, mating bolt, torque/load condition, quantity and certificate requirements.
Need GFRP composite hex nuts?
Send thread size, nut drawing, composite material, UV requirement, mating bolt/washer details and quantity. We can quote GFRP composite nuts for renewable energy, electrical isolation and corrosion-resistant assemblies.
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