Product Introduction
Sealing screw is a one-piece functional fastener designed to solve equipment leakage and dust ingress troubles. Unlike separate screw and gasket combinations, each screw is pre-assembled with an elastic sealing ring under the head. When fastened to standard torque, the ring forms a full 360° compression seal to block moisture, rainwater, dust and oil from penetrating assembly gaps.
All our sealing screw reach stable IP67 sealing grade, cutting extra assembly steps and lowering failure risks caused by displaced gaskets. Widely adopted for high-reliability equipment exposed to humid, outdoor and corrosive environments.
Core Product Advantages
1
Integrated sealing design
Pre-mounted silicone, EPDM or FKM O-ring avoids manual gasket installation
2
Zero leakage performance
Uniform compression creates airtight & watertight isolation after locking
3
Vibration-resistant structure
Under-head limiting groove prevents O-ring shifting during long-term operation
4
Multi-scene compatibility
Various head and drive types fit miniature electronics and large industrial cabinets
5
Flexible customization
Adjust size, seal material and surface finish per your drawings or samples
Available Types & Metric Specifications
Head & Drive Options
Head types: Pan head, truss head, socket cap head, countersunk head
Drive types: Hex socket, torx, phillips, slotted
Standard Sizes
Complete metric range M2 / M3 / M4 / M5 / M6 / M8 / M10 / M12, regular stock ready for immediate shipment. Non-standard thread length and special diameters are acceptable for custom orders.
Seal Ring Material Choices
Standard silicone ring for general indoor & outdoor use; FKM high-temperature ring for engine and oil equipment; EPDM ring for acid & alkali resistant working conditions.
Material & Surface Treatment
Base Material
304 / 316 stainless steel: Superior anti-corrosion performance, ideal for coastal, marine and long-term outdoor devices
Zinc-plated carbon steel: Cost-effective solution for indoor electronic assemblies
Surface Finishes
Blue zinc plating, white zinc plating, black oxide, nickel plating, blue nylon patch coating. Nylon patch treatment adds anti-loosening function on the thread for vibration-heavy equipment.
Main Industry Applications
• Outdoor security: Camera housings, access control terminals
• New energy: Solar inverters, energy storage control boxes
• Automotive electronics: Vehicle sensors, car lamp assemblies, onboard control modules
• Communication electronics: Outdoor terminal casings, signal equipment
• Precision devices: Medical instruments, testing equipment, smart wearable shells
Strict Quality Control & Factory Certifications
We are a professional fastener manufacturer with over 30 years production experience. Full-process inspection covers raw material incoming test, dimensional tolerance check, salt spray aging test and finished product waterproof verification, with manufacturing tolerance controlled up to 0.04mm.
Our factory holds ISO9001 quality and ISO14001 environmental management certifications, and the group branch passes IATF16949 automotive quality standards. All products comply with RoHS environmental standards, complete test reports can be provided upon request.
OEM & ODM Custom Service
We support full personalized customization for all types of sealing screw. You can customize non-standard dimensions, exclusive head shapes, special sealing rings and dedicated surface treatments according to your drawings or physical samples. Flexible MOQ supports small sample trials and mass bulk production, stable lead time guaranteed for global wholesale buyers.
Contact us
FAQ
Q:Do you offer free samples and inspection documents?
Yes, free product samples are available (freight collected). We can provide official RoHS and salt spray test reports to support customer quality inspection and project certification.
Q:What waterproof level do your sealing screw support?
All standard sealing screw achieve stable IP67 waterproof and dustproof performance under standard installation torque, effectively preventing water, moisture and fine dust from entering equipment gaps for long-term outdoor and industrial use.
Q:Can you customize non-standard sealing fasteners?
Yes, full OEM and ODM customization is available. We can adjust screw size, head type, drive style, O-ring material and surface treatment according to customer drawings or samples to meet special equipment assembly requirements.
Q:What is your production and delivery lead time?
Standard in-stock sealing screw can be shipped within 3 working days. Customized mass production orders take 15–20 working days according to order quantity and customization degree.
Q:What sealing ring materials are available for different working conditions?
We provide silicone, EPDM and FKM O-rings. Silicone for general outdoor use, EPDM for acid and alkali environments, and FKM for high-temperature, oil-resistant and harsh industrial working conditions.
Q:Are your sealing screw suitable for automotive and outdoor projects?
Absolutely. Our sealing screw pass strict salt spray and aging tests, supported by IATF16949, ISO9001 and RoHS certification. They are widely used in automotive electronics, outdoor monitoring, new energy and communication equipment with stable and long service life.
