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China Suppliers Factory Stainless Steel Self-Sealing Screw with O-Ring for Waterproof Outdoor Electronics and Marine Use
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China Suppliers Factory Stainless Steel Self-Sealing Screw with O-Ring for Waterproof Outdoor Electronics and Marine Use

Introducing our high-quality stainless steel self-sealing screw, designed with a pre-installed rubber O-ring that ensures IP67 waterproof and dustproof protection. This innovative product is perfect for outdoor electronics, marine equipment, automotive lighting, and industrial enclosures. Our screws are corrosion-resistant, making them ideal for harsh environments. As a leading factory and supplier based in China, we are committed to providing durable and reliable solutions for your fastening needs. Trust our products for superior performance and protection in any application

    Product Overview

    This self sealing screw has a rubber O ring fitted right onto the shaft. When you drive it in the O ring gets squeezed between the screw head and the surface creating a tight seal that keeps water and dust from getting through.

    You won't need extra sealing washers or messy sealant. Just grab your screwdriver or power tool and drive it in. The seal is done in one step.

    These screws work well anywhere moisture is a problem. Think outdoor electrical boxes, marine equipment, car lights, solar panel junction boxes, or factory control panels.

    We make them in different head styles like Phillips pan head, flat head, countersunk, and hex head. Thread sizes go from M3 up to M8. The screw body is stainless steel 304 or 316 so it holds up against rain, salt, and humidity.

    Need a different rubber material for the O ring? We can do silicone or Viton depending on your temperature or chemical requirements.


    Features

    1
    Rubber O Ring Already On The Screw No extra parts to lose or forget. The O ring stays in place during shipping and installation.
    2
    Keeps Water And Dust Out Once tightened the O ring compresses and blocks moisture and dirt from getting past the screw head.
    3
    Made From Stainless Steel 304 or 316 grade stands up to outdoor weather, rain, and salty air.
    4
    One Step Installation Drive the screw and seal the hole at the same time. No separate washer or sealant needed.
    5
    Pick Your Head Style Comes in Phillips pan head, flat head, countersunk, hex head, or truss head.
    6
    Standard Sizes From M3 To M8 We keep common metric sizes in stock. Need something different? Just ask.
    7
    Same Seal Every Time The O ring compresses the same way screw after screw. No guessing.
    8
    Works With Regular Tools Use a standard screwdriver or any power tool. No special equipment needed.
    9
    Other O Ring Materials Available NBR, silicone, or Viton. Pick what works for your temperature or chemical exposure.
    10
    Custom Orders Welcome Different sizes, head markings, or O ring materials? We can make them for you.

    About Dongguan Yuhuang Electronic Technology Co., Ltd.

    Dongguan Yuhuang Electronic Technology Co., Ltd. was established in 1998, is a production, research and development, sales and service in one of the industrial and trade enterprises. It is mainly committed to the research and development and customization of non-standard hardware fasteners, as well as the production of various precision fasteners such as GB, ANSI, DIN, JIS, ISO, etc.

    Our company has two production bases. Dongguan Yuhuang covers an area of 8,000 square meters, and Lechang Yuhuang covers an area of 12,000 square meters. We have a professional service team, technical team, quality team, domestic and foreign business team, mature and perfect production chain and supply chain. As well as advanced production equipment, precision testing instruments, strict quality management, and advanced management physique.

    ISO 9001 ISO 14001 IATF 16949 REACH RoHS

    Frequently Asked Questions

    Q What is a self sealing screw and how does it work?
    A self sealing screw has a rubber O ring pre-fitted onto the shaft. When the screw is driven in, the O ring gets compressed between the screw head and the mounting surface, forming a tight seal that prevents water, dust, and moisture from passing through the fastening point.
    Q What materials are the screws and O rings made from?
    The screw body is made from stainless steel 304 or 316, both of which offer strong resistance to rain, salt, and humidity. The O ring is available in NBR (standard), silicone, or Viton depending on your temperature range and chemical exposure requirements.
    Q What head styles and thread sizes are available?
    We offer multiple head styles including Phillips pan head, flat head, countersunk, hex head, and truss head. Standard metric thread sizes range from M3 to M8. If you need a size outside this range, custom orders are available upon request.
    Q Do I need any special tools to install these screws?
    No special tools are required. These screws are fully compatible with standard screwdrivers and common power tools. The O ring seals automatically as you tighten the screw, so there is no need for additional sealant or separate sealing washers.
    Q What applications are these self sealing screws suitable for?
    These screws are ideal for any application where moisture or dust intrusion is a concern. Common uses include outdoor electrical boxes, marine equipment, automotive lighting, solar panel junction boxes, and industrial control panels. They are a reliable choice for both indoor and outdoor environments.
    Q Can I order custom self sealing screws with specific requirements?
    Yes, custom orders are welcome. We can accommodate requests for non-standard sizes, specific head markings, alternative O ring materials such as silicone or Viton, and other special configurations. Please contact us with your specifications and we will provide a tailored solution.