🔩 Pan Phillips SEM Screw – Pre-Assembled Washer Screws | Neo Fasteners
Pan Phillips SEM Screws, also called SEMS Screws, are high-utility fasteners that come pre-assembled with a washer (or multiple washers) under the screw head. These are designed for fast, secure, and reliable assembly, reducing installation time and preventing washer loss. The pan head with Phillips drive offers a clean and controlled torque grip, while the integrated washer provides improved load distribution and vibration resistance.
At Neo Fasteners, we provide a complete range of Pan Phillips SEM Screws in standard and custom specifications — ideal for electronics, electrical assemblies, automotive parts, and machinery applications.
🛠️ Key Features
- Pre-Assembled with Washer(s) – Reduces handling and speeds up production
- Pan Head – Large surface area and clean profile
- Phillips Drive – Cross-slotted for machine or hand tools
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Available with:
- Plain washer
- Spring washer
- Tooth lock washer
- Combination (plain + spring)
- Vibration-resistant, excellent clamping force
- Time-saving for assembly line operations
📐 Available Sizes – Metric
| Size (mm) | Thread Pitch | Head Dia. | Head Height | Washer Dia. | Length Range |
|---|---|---|---|---|---|
| M2 | 0.4 mm | 3.5 mm | 1.3 mm | 4.5–5.0 mm | 4–16 mm |
| M2.5 | 0.45 mm | 4.5 mm | 1.6 mm | 5.5–6.0 mm | 4–20 mm |
| M3 | 0.5 mm | 6.0 mm | 2.0 mm | 7.0–8.0 mm | 6–25 mm |
| M4 | 0.7 mm | 7.6 mm | 2.6 mm | 9.0–10.0 mm | 8–40 mm |
| M5 | 0.8 mm | 9.5 mm | 3.1 mm | 11–12 mm | 10–50 mm |
| M6 | 1.0 mm | 10.5 mm | 3.8 mm | 12–14 mm | 12–60 mm |
Also available in UNC, UNF, BSW, and Self-Tapping threads.
🧱 Material Options
- Mild Steel (MS) – Low cost, general applications
- Stainless Steel – SS 202 / SS 304 / SS 316
- Brass – For electrical insulation and corrosion resistance
- Nylon SEM Screws – Lightweight and non-conductive (on request)
🎨 Finish Options
| Finish Type | Features | Appearance |
|---|---|---|
| Zinc Plated – White | Corrosion protection, indoor use | Bright silver |
| Zinc Yellow | Automotive & electrical use | Golden finish |
| Black Oxide | Machinery and electronics | Matte black |
| Nickel Plated | Decorative, corrosion-resistant | Glossy silver |
| Natural SS / Brass | For rust-prone or electrical areas | Silver / Golden |
RoHS Compliant plating available.
🔩 Washer Types Available
- Plain Washer (DIN 125)
- Spring Washer (DIN 127 / 7980)
- Tooth Lock Washer (External / Internal Star)
- Combination Washers (Spring + Plain)
- Fibre Washer / Nylon Washer (on request)
Washers are captive and non-removable unless requested.
🔧 Thread Types
- Metric (DIN ISO 261 / 262)
- Self-Tapping SEM Screws (DIN 7981, 7982)
- UNC / UNF / BSW on request
- Right-hand and custom pitch options available
📦 Packing Options
- 100 / 500 / 1000 pieces per pack
- Polybags, box, and export carton options
- Custom logo, barcode, OEM labeling available
- MTC, RoHS, REACH, ISO 9001:2015 Certificates on demand
🧰 Applications
- Electronics Assembly
- Panel Boards & Switchgear
- Home Appliances
- Automotive Fixtures
- Sheet Metal Fastening
- Computer Hardware
- Electrical Junction Boxes
✅ Standard References
- DIN 6900 (SEMS)
- DIN 7985 + Washer (Modified)
- ISO 7045 + Captive Washer
- RoHS Compliant | ISO 9001:2015 Certified
📞 Contact Neo Fasteners
📧 Email: neofasteners@yahoo.com
📞 Call/WhatsApp: +91-96328 07665
🌐 Websites:
🔗 neofasteners.com (Google Site)
📍 Location: Bengaluru, Karnataka, India