Screws manufacturer and supplier today: Choose JM Hardware®, your reliable screw manufacturer, and let us provide the perfect fastening solutions for all your projects. Contact us today to learn more about our products and customization capabilities! Specialty Screws: Custom-designed screws for unique applications, including security screws, pocket hole screws, and more. Washers are used to provide protection for materials at a join and to provide secure seals. We offer standard washers in steel alloys, carbon steel, stainless steel alloys, Hastalloy®, Inconel®, Incoloy®, Monel®, silicon bronze, titanium, brass and nickel as well as rare and exotic materials for specialty applications. Yellow zinc, Xylan®, Cadmium, hot dipped galvanized plating and specialty coatings are offered for custom coating and finishing. Our staff will work with you to select the washer and material that will meet your requirements. Find extra info on custom bolt manufacturers.
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.
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.
Nuts And Bolts: A Dynamic Duo – Nuts and bolts are like two peas in a pod – they work together to create a strong and reliable joint. A bolt is essentially a threaded rod with a head, while a nut is a small metal piece with a threaded hole. When you tighten a nut onto a bolt, it creates a clamping force that holds the joint together. Types of Nuts and Bolts – Just like screws, nuts, and bolts come in a wide variety of shapes and sizes. Here are a few common types: Hex nuts and bolts: These are the most common type, featuring a hexagonal shape for easy gripping with a wrench. Carriage bolts: These have a domed head and a square section underneath that prevents the bolt from turning when the nut is tightened.
Powder coating is a process where a dry powder is applied to the custom machine screws’surface and then cured in an oven. It results in a smooth, durable finish that can be applied in various colors. This treatment is particularly popular for screws used in automotive, home appliances, and outdoor furniture because of its high resistance to wear, weather, and UV damage. The finish can also be matte or glossy depending on the client’s preference. Recommendation for Clients: Powder coating is ideal for applications where both color and durability are important, especially in industries like automotive or outdoor products. However, it can be more expensive than other surface treatments, so it’s best suited for high-end products or when long-lasting aesthetics are crucial. Find more info at jm-fastener.com.
Enhanced Security: Bolts provide enhanced security in critical applications. For example, tamper-proof bolts are used in public infrastructure and high-security installations to prevent unauthorized disassembly. The ability to use locking mechanisms, such as lock nuts or thread-locking compounds, further enhances the security and reliability of bolted connections. Compatibility with High-Strength Applications: Bolts are better suited for high-strength applications due to their robust design and the ability to use high-grade materials. Grade 8 or 10.9 bolts, for example, offer exceptional tensile strength and are used in demanding environments such as automotive suspensions and heavy machinery.
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.