-
Countersunk Hex Socket Machine Screw with O-Ring
The Countersunk Hex Socket Sealing Screw with O-Ring is a precision-engineered fastener designed for secure and waterproof applications in industrial and electronic settings. Its countersunk head ensures a flush finish, while the hex socket drive allows for easy installation with maximum torque transfer. The O-ring provides a reliable seal, protecting against moisture and dust, making it ideal for environments where waterproofing is essential. Crafted from high-quality materials, this screw delivers durability and performance, meeting the needs of demanding applications.
-
Square Drive Waterproof Seal Screws for Cylinder Heads
The Square Drive Waterproof Seal Screw for Cylinder Head is a specially designed fastening solution to meet the unique requirements of cylinder head applications. Featuring a square drive mechanism, this self-tapping screw ensures enhanced torque transfer and secure installation, making it an ideal choice for automotive, industrial, and machinery use. The waterproof seal capability adds an additional layer of protection, preventing leaks and ensuring the longevity of your machinery. Engineered for reliability, this non-standard hardware fastener is a top-tier choice for OEM and custom applications, offering tailored solutions for those in need of high-performance fastening systems.
-
China Slotted Sealing Screw with O-Ring
Introducing the Slotted Sealing Screw with O-Ring, a versatile and reliable solution for your sealing needs. This nonstandard screw combines the functionality of a traditional slotted drive with the advanced sealing capabilities of an O-ring, making it an ideal choice for applications requiring a waterproof and secure connection.
-
Cylinder Security Sealing Screw with Star Column
Introducing our premium Cylinder Head Security Sealing Screw, an innovative and robust security solution designed for applications requiring both high-level tamper resistance and superior sealing performance. Engineered with precision, these screws feature a unique cylinder cup head and a star-shaped pattern with integrated columns, offering unparalleled security and reliability. Two standout features that set this product apart are its advanced sealing mechanism and its sophisticated anti-theft design, making it ideal for a wide range of industries and applications.
-
Pan Head Cross Recess Waterproof Shoulder Screw With O Ring
Introducing our combination with Shoulder Screw and Waterproof screw, a versatile and reliable fastener designed specifically for industrial, equipment, and machinery applications. As a leading provider of high-quality machine screws in the hardware industry, we offer these screws as part of our extensive range of non-standard hardware fasteners tailored to meet the needs of electronics manufacturers and equipment producers worldwide. Our OEM services make us a hot-selling choice in China, with customization options that cater to you.
-
Hex Socket Cup Head Waterproof Sealing Screw with O-Ring
Introducing our waterproof sealing screw with O-ring, a specialized fastening solution designed to provide exceptional moisture resistance and reliability. This innovative screw features a robust hex socket design and a unique cup head shape, making it ideal for various industrial and automotive applications. The integrated O-ring serves as an effective waterproof barrier, ensuring that your assemblies remain protected from moisture and contaminants, which is crucial for maintaining the integrity and longevity of your projects.
-
torx pan head waterproof screw with rubber washer
The Sealing Screw is our company’s latest high-performance sealing screw, designed to meet the needs of the industrial sector for sealing performance and reliability. As one of the leading sealing solutions on the market, Sealing Screw plays a key role in a wide range of machinery and vehicles due to its outstanding performance in waterproofing, dust and shock resistance.
-
allen flat countersunk head sealing screws
Our sealing screws are designed with hexagon countersunk heads and are designed to provide a strong connection and perfect decorative effect for your project. Each screw is equipped with a high-efficiency sealing gasket to ensure a perfect seal during installation, preventing moisture, dust and other harmful substances from entering the joint. The hexagon socket design not only makes the screws easier to install, but also has the advantage of being anti-twist for a stronger connection. This innovative design not only makes the screws more durable and stable, but also ensures that the connection remains dry and clean at all times. Whether it’s for outdoor assembly or indoor engineering, our sealing screws provide long-term reliable water and dust resistance, as well as a more aesthetically pleasing and satisfying finish.
-
countersunk torx Anti Theft Security sealing screw with o ring
Features:
- Anti-theft head design: The head of the screw is designed with a unique shape, which makes it impossible for ordinary screwdrivers or wrenches to operate effectively, thus increasing the safety factor.
- High-strength materials: Sealing screws are made of high-strength materials, which have strong wear resistance and corrosion resistance, ensuring a long-term and stable service life.
- Widely applicable: suitable for a variety of fields, such as security doors, safes, electronic equipment and other occasions that require anti-theft functions.
-
stainless steel torx head anti-theft safety sealing screw
Our Sealing Screw features an advanced paint head design and Torx anti-theft groove to provide you with superior security and aesthetics. The design of the paint head allows the surface of the screw to be evenly coated with coating, improving rust resistance and ensuring a consistent appearance. The plum anti-theft groove structure effectively prevents illegal unwinding and realizes a more reliable anti-theft function.
-
torx pan head self tapping seal waterproof screws
Our waterproof screws are designed for outdoor and wet environments. Made of high-quality stainless steel with excellent corrosion and weather resistance, it is able to withstand prolonged exposure to wet conditions without damage. Its special sealing design and surface treatment allow the screws to maintain a secure connection even when exposed to water, moisture or chemicals, ensuring that your project and work remain strong and reliable in any adverse weather conditions. These waterproof screws are not only suitable for outdoor furniture and decoration projects, but also widely used in ships, port facilities and water conservancy projects, providing high-quality connection accessories for various occasions that require waterproof solutions.
-
Stainless Steel Socket Head waterproof o ring self-sealing screws
Sealing screws, also known as self-sealing screws or sealing fasteners, are specialized screw components designed to provide a secure and leak-proof seal in various industrial and mechanical applications. These screws feature a unique design that incorporates a sealing element, typically a resilient O-ring or washer, which is integrated into the screw’s structure. When the sealing screw is fastened into place, the sealing element creates a tight seal between the screw and the mating surface, preventing the passage of fluids, gases, or contaminants.
Sealing Screw safeguards applications from extreme weather, moisture, and gas infiltration by eliminating gaps between fasteners and contact surfaces. This protection is accomplished through a rubber O-ring installed beneath the fastener, which creates an effective barrier against contaminants like dirt and water penetration. The compression of the O-ring ensures complete closure of potential entry points, maintaining environmental integrity in the sealed assembly.
Types of Sealing screws
Sealing screws come in various types, each suited to specific applications and designs. Here are some common types of waterproof screws:
Sealing Pan Head Screws
Flat head with built-in gasket/O-ring, compresses surfaces to block water/dust in electronics.
Cap Head O-Ring Seal Screws
Cylindrical head with O-ring, seals under pressure for automotive/machinery.
Countersunk O-Ring Seal Screws
Flush-mounted with O-ring groove, waterproofs marine gear/instruments.
Hex Head O-Ring Seal Bolts
Hex head + flange + O-ring, resists vibration in pipes/heavy equipment.
Cap Head Seal Screws withUnder Head Seal
Pre-coated rubber/nylon layer, instant sealing for outdoor/telecom setups.
These types of sael screws can be further customized in terms of material, thread type, O-Ring，and surface treatment to meet the specific needs of various applications.
Application of Sealing screws
Sealing screws are widely used in scenarios requiring leak-proof, corrosion-resistant, or environmental isolation. Key applications include:
1. Electronics & Electrical Equipment
Applications: Smartphones/laptops, outdoor surveillance systems, telecom base stations.
Function: Block moisture/dust from sensitive circuits (e.g., O-ring screws or nylon-patched screws).
2. Automotive & Transportation
Applications: Engine components, headlights, battery housings, chassis.
Function: Resist oil, heat, and vibration (e.g., flanged screws or cap head O-ring screws).
3. Industrial Machinery
Applications: Hydraulic systems, pipelines, pumps/valves, heavy machinery.
Function: High-pressure sealing and shock resistance (e.g., hex head O-ring bolts or thread-sealed screws).
4. Outdoor & Construction
Applications: Marine decks, outdoor lighting, solar mounts, bridges.
Function: Saltwater/corrosion resistance (e.g., countersunk O-ring screws or stainless steel flanged screws).
5. Medical & Lab Equipment
Applications: Sterile instruments, liquid-handling devices, sealed chambers.
Function: Chemical resistance and airtightness (require biocompatible sealing screws).
How To Order Custom Fasteners
At Yuhuang, the process of ordering Custom Fasteners is simple and efficient:
1.Specification Definition: Clarify material type, dimensional requirements, thread specifications, and head design for your application.
2.Consultation Initiation: Reach out to our team to review your requirements or schedule a technical discussion.
3.Order Confirmation: Finalize details, and we'll commence production immediately upon approval.
4.Timely Fulfillment: Your order is prioritized for on-schedule delivery, ensuring alignment with project deadlines through strict adherence to timelines.
Our customers also frequently buy
Machine Screw
Self tapping Screw
Captive Screw
Sems ScrewFAQ
1. Q: What is a sealing screw?
A: A screw with a built-in seal to block water, dust, or gas.
2. Q: What are waterproof screws called?
A: Waterproof screws, commonly termed sealing screws, use integrated seals (e.g., O-rings) to block water penetration in joints.
3. Q: What is the purpose of a sealing Fasteners fitting?
A: Sealing fasteners prevent water, dust, or gas from entering joints to ensure environmental protection.
