🔩 Product Overview: Nylon Plastic Phillips & Hex Machine Screws – M8, M10, M12 (Pan / Flat / Cap Head)
Need a fastener that won’t conduct electricity, won’t rust, and won’t scratch delicate surfaces? These nylon (PA66) plastic machine screws are the answer. Available in pan head (Phillips), flat head (Phillips), and socket cap head (hex drive) styles – plus matching hex nuts, cap nuts, and washers. Sizes M8, M10, and M12 with standard coarse metric threads. Lightweight, self‑lubricating, and resistant to chemicals and high temperatures. Perfect for electronic enclosures, marine equipment, chemical processing, medical devices, and any application where metal fasteners would cause corrosion, shorts, or weight issues. Grade 4.8 strength for reliable fastening. Choose exactly the configuration you need – screw only, screw + nut + washer, or individual nuts.
✨ Why Nylon Plastic Fasteners Outperform Metal in Many Applications
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Excellent electrical insulation – Nylon (PA66) is non‑conductive, making these screws ideal for circuit boards, battery terminals, and electronics where metal would short.
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Non‑magnetic & corrosion‑proof – No rust, no magnetic interference. Perfect for marine, MRI rooms, and chemical environments.
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Lightweight and self‑lubricating – Reduces assembly friction and won’t add unnecessary weight to your design.
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Chemical & temperature resistant – Withstands many acids, alkalis, and solvents. Operates in temperatures from -40°C to 120°C (-40°F to 248°F).
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Three head styles available – Pan head (Phillips) for general use, flat head (Phillips) for flush countersunk mounting, and socket cap head (hex drive) for high torque.
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Complete fastening system – Choose from screws alone, or add hex nuts, cap nuts, and washers (all nylon).
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Metric sizes M8, M10, M12 – Coarse right‑hand threads (M8x1.25, M10x1.5, M12x1.75). Fully threaded for maximum grip.
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Grade 4.8 strength equivalent – Strong enough for most non‑structural plastic and metal assemblies.
📏 Technical Specifications – Nylon Machine Screws & Nuts (M8–M12)
| Specification |
Details |
| Material |
Nylon PA66 (polyamide 66) |
| Grade |
4.8 (equivalent mechanical properties) |
| System of Measurement |
Metric |
| Thread Type |
Coarse right‑hand thread (fully threaded) |
| Screw Sizes (Diameter) |
M8, M10, M12 |
| Thread Pitches |
M8x1.25, M10x1.5, M12x1.75 |
| Head Styles Available |
Pan Head (Phillips), Flat Head (Phillips), Socket Cap Head (Hex Drive) |
| Matching Nuts & Washers |
Hex nuts, cap nuts, flat washers – all nylon PA66 |
| Drive Tools |
Phillips screwdriver (PH2 for M8, PH3 for M10/M12) or hex key (5mm for M8, 6mm for M10, 8mm for M12 – cap head) |
| Temperature Range |
-40°C to 120°C (-40°F to 248°F) |
📦 Available Configurations (Select from Options)
| Option |
Description |
| Pan Head Phillips Screw |
Round head, cross drive – best for general surface mounting |
| Flat Head Phillips Screw |
Countersunk 90° head – sits flush for smooth surfaces |
| Socket Cap Head Hex Screw |
Cylindrical head with hex socket – high torque, clean look |
| Screw + Hex Nut + Washer Set |
Complete fastening kit – screw + nut + flat washer (all nylon) |
| Hex Nut Only |
Standard nylon hex nut for M8/M10/M12 threads |
| Cap Nut Only |
Dome‑shaped nylon cap nut – covers exposed threads, decorative |
❓ FAQs – Nylon Plastic Fasteners (M8–M12)
🔸 Are nylon screws strong enough for structural applications?
Nylon screws (Grade 4.8) are strong for plastic fasteners but not as strong as steel. Use them for non‑critical fastening: PCB mounting, battery boxes, plastic enclosures, light machinery, and marine electronics. For load‑bearing or high‑torque applications, metal fasteners are recommended. However, for most electrical and corrosion‑sensitive assemblies, nylon is perfectly adequate.
🔸 Will nylon screws degrade in sunlight or outdoor use?
Standard PA66 nylon is UV‑sensitive and can become brittle with prolonged direct sunlight. For outdoor use, try to keep them shaded or painted. They handle temperatures up to about 120°C (248°F) before softening. For extreme UV or outdoor exposure, consider UV‑stabilized nylon (available by request).
🔸 What is the difference between pan head, flat head, and socket cap head?
Pan head has a rounded top and flat bottom – sits on top of the surface. Flat head (countersunk) sinks flush into a tapered hole. Socket cap head has a cylindrical shape with a hex drive – allows higher torque and a clean, low‑profile appearance. Choose based on your application’s clearance and aesthetic needs.
🔸 Are these screws compatible with metal nuts?
Yes, the threads are standard metric coarse. They will thread into metal nuts of the same size. However, for best corrosion compatibility and to avoid galvanic issues, pairing nylon with nylon nuts is recommended (available here).
🔸 How do I prevent nylon screws from loosening due to vibration?
Nylon has natural self‑locking properties due to its slight elasticity. For extra security, you can use a nylon washer, a thread‑locking patch (vibra‑tite), or simply tighten firmly – but avoid over‑torquing, as plastic can strip more easily than metal.
🔸 What lengths are available for M8, M10, M12 screws?
Lengths vary – typical ranges: M8: 10–60mm, M10: 12–80mm, M12: 16–100mm. Please select your desired length from the dropdown options. If you need a specific length not listed, contact us – we may be able to source it.
