Screws manufacturer and supplier in China: Standard fasteners mainly include bolts, studs, screws, set screws, nuts, washers and rivets. There are many structural types of bolts, and most of the heads are hexagonal. For bolts subjected to impact, vibration or variable load, in order to increase flexibility, the polished rod part is made into a thin section or hollow. The seat end of the stud is screwed into the threaded hole of the connected piece, and the nut equipped with the nut end is similar to the bolt nut. The structure of the screw is roughly the same as that of the bolt, but the head shape is diverse to adapt to different assembly space, tightening degree and connection appearance. Set screws have different head and end shapes to accommodate different tightening degrees. There are also many types of nuts, with the hexagonal shape being the most widely used. Find additional details at custom made bolt.
JM Hardware is a custom screw manufacturer, we have Multi-station machines, these machines can produce complex geometries screw, it achieve significant cost save over traditional manufacturing. Cold head, thread roll and other professional equipment: these equipment can production M2.5-M30 size, 6-180MM length, and can customized 1000MM length screw. Custom screws come in almost every size and style imaginable, but engineers and OEMs know there are applications where an off-the-self fastener won’t suffice. Designing a custom or modified screw is a perfect solution for these situations, saving you time and money over searching for stock screws to meet your mechanical application requirements.
Salt spray testing, also known as salt fog or salt mist testing, is a critical process used to assess the corrosion resistance of materials, particularly fasteners. It is an accelerated test designed to simulate long-term exposure to saline environments, such as saltwater, which can cause rapid deterioration of metals. For fasteners used in various industries, salt spray testing is a standard method for evaluating the durability and longevity of their surface coatings and material quality. In this article, we will explore why salt spray testing is essential for custom automotive fasteners, the benefits of longer test durations, the specific applications and industries where different test durations are relevant, and the surface treatments used to achieve longer corrosion resistance.
Anodizing is a surface treatment used primarily for aluminum screws and fasteners. It enhances the natural oxide layer of aluminum, offering better corrosion resistance and a variety of color options. Anodized aluminum screws are available in various colors, such as clear, black, red, and blue. This treatment not only enhances the appearance but also increases the strength of the aluminum surface. Recommendation for Clients: Anodizing is a great choice for clients using aluminum screws in products where color customization is needed. It’s an excellent option for consumer electronics, jewelry, and decorative applications.
Construction: They are used to distribute the load of bolts in structural steel connections and timber framing. Automotive: Washers are crucial for preventing damage to car body panels and ensuring proper tightening of fasteners. Plumbing: They are used with nuts and bolts to create leak-proof connections in pipes and fixtures. Electrical: Washers provide insulation and prevent loosening of screws in electrical components and appliances. Always use washers with nuts and bolts to prevent damage to the underlying material and ensure a secure connection. Choose the appropriate washer type based on the specific application and the type of fastener being used. See even more details on jm-fastener.com.
Tailored Designs: The design and shape of non-standard nuts can vary widely, from traditional hex nuts and flange nuts to specialized designs such as wing nuts, knurled nuts, or captive nuts, adapted to specific installation, accessibility, or aesthetic considerations. Specialized Industries: Non-standard nuts find applications in specialized industries such as aerospace, automotive, marine, electronics, and medical devices, where standard nuts may not meet the unique demands of the application. Custom Machinery: These nuts are often used in custom machinery, equipment, and tooling where off-the-shelf fasteners cannot provide the required fit, strength, or performance.
Stainless steel bolts are highly resistant to rust and corrosion due to the presence of chromium, which forms a passive oxide layer on the surface, protecting the underlying metal from oxidation. Types of stainless steel commonly used for bolts include austenitic grades such as 18-8 (304) and 316, which offer excellent corrosion resistance in marine and harsh environments. Galvanized bolts are coated with a layer of zinc through a hot-dip galvanizing process, providing a sacrificial barrier against corrosion. The zinc coating prevents moisture and corrosive substances from reaching the underlying steel substrate, significantly extending the lifespan of the bolt.