⚪ White Nylon Phillips Pan / Countersunk Head Machine Screws & Hex Nuts – M3 M4 M5 M6 M8, Non‑Conductive & Corrosion‑Free
You’re mounting a PCB, securing a battery box, or assembling a marine electrical panel – and metal screws could cause shorts or rust. These white nylon screws are made from PA66, a tough engineering plastic that’s completely non‑conductive, non‑magnetic, and immune to corrosion. Choose either pan (round) head for surface mounting or countersunk flat head for a flush finish. Each set includes matching hex nuts. The Phillips drive works with standard crosshead screwdrivers. Available in M3, M4, M5, M6, and M8 diameters, with fully threaded bodies. UL94 V‑2 rated (flame retardant) and operational from -20°C to 120°C. Perfect for electronics, medical devices, marine hardware, and chemical environments.
✨ Key Features – Nylon Screws & Hex Nuts (White PA66)
- ⚡ Electrically insulating – PA66 nylon is a natural insulator. Safe for PCBs, terminal blocks, and live circuits.
- 🦀 100% corrosion‑proof – No rust, no oxidation, no galvanic reaction. Perfect for marine, chemical, and outdoor environments.
- 🔘 Two head styles – Pan (round) head for surface mounting, or countersunk flat head for flush finishes. Choose what fits your project.
- 🔩 Matching hex nuts included – Each screw comes with a white nylon hex nut of the same size. No extra hardware hunting.
- 💪
Phillips drive – Standard cross recess works with common screwdrivers. Good torque control for hand assembly.
- 📏 Metric sizes M3, M4, M5, M6, M8 – Popular diameters for electronics, light machinery, and marine hardware.
- 🔥 Flame retardant & temperature resistant – UL94 V‑2 rated. Operating temperature: -20°C to +120°C (continuous use up to 85°C).
- 💪 Lightweight & strong – About 1/5 the weight of steel. High mechanical strength and good toughness.
📏 Specifications – White Nylon Screws + Hex Nuts
| Thread Diameter (M) |
Thread Pitch (mm) |
Head Style Options |
Length Measurement |
Typical Lengths (mm) |
Material |
| 📐 Pan head: length under head (excluding head). Countersunk head: overall length including head. Select head style, diameter and length from dropdown. |
| M3 |
0.5 |
Pan (round) head
or Countersunk flat head
|
Pan: under head
Countersunk: overall |
4, 5, 6, 8, 10, 12, 16, 20, 25, 30, 35, 40, 45, 50
(exact availability varies) |
White PA66 Nylon |
| M4 |
0.7 |
| M5 |
0.8 |
| M6 |
1.0 |
| M8 |
1.25 |
* Matching hex nut included with each screw. Please allow minor dimensional tolerances per industry standards. UL94 V‑2 flame rating.
🛠️ Which Head Style Should You Choose?
| Head Style |
Appearance |
Installation |
Best For |
| Pan (round) head |
Low profile, rounded top, wide bearing surface |
Drill clearance hole; head sits on top |
Surface mounting, plastic enclosures, visible fasteners |
| Countersunk (flat) head |
90° cone, sits flush with surface |
Requires 90° countersunk hole |
Flush finishes, tight clearances, smooth sliding surfaces |
❓ Frequently Asked Questions – Nylon Screws & Nuts
1. Are nylon screws strong enough for structural applications?
Nylon screws have about 1/5 to 1/3 the tensile strength of steel. They are perfect for lightweight assemblies, electrical insulation, corrosion‑prone environments, and vibration‑damping. For heavy load‑bearing (e.g., a 50kg shelf), use metal. For PCB mounting, plastic enclosures, or battery terminals, nylon is ideal.
2. Can I use these screws outdoors? Will they degrade?
White nylon is UV‑sensitive. For continuous outdoor sunlight exposure (months or years), the material may become brittle and discolor. We recommend using them in shaded or indoor applications. For full outdoor use, consider black nylon (which has added UV stabilizers) or stainless steel.
3. How do I measure the length for pan head vs. countersunk head?
For pan (round) head screws, length is measured from the underside of the head to the tip (head not included). For countersunk head screws, length is measured overall from the top of the head to the tip. This matches the industry standard.
4. Are the nuts included? What type are they?
Yes – each screw comes with one matching white nylon hex nut of the same thread size. The nuts are standard metric hex nuts (e.g., M4 nut for M4 screw).
5. Can I use a power drill to drive these screws?
Yes – but use a very low‑clutch setting (1–2) and low speed. Nylon threads can strip if over‑torqued. Hand tightening is recommended for final seating.
6. What is the operating temperature range?
Continuous use from -20°C to +85°C, with short peaks up to +120°C. The material meets UL94 V‑2 flame retardant rating.
