Excellent foundation bolts factory: JM Hardware® machining capabilities include Swiss-style automatic machining with 15,000 RPM spindles that achieves tolerances as tight as ± 0.0005″, versatile multi-tool 5-axis CNC milling and turning centers, CNC lathes with live tooling capable of working to diameters as small as 0.010”, and 5-Axis CNC wire EDM machines working to diameters as small as 0.0005″. Combined with our cutting, grinding, lapping and polishing capabilities, our machining centers enable us to offer vertically integrated solutions that shorten production times for difficult to machine small diameter machining parts. See many more information at custom bolt manufacturers.
JM Hardware ® is a professional manufacturer of fasteners for engineering projects and customized hardware established in 2006. The company has 18 years of production experience and technology accumulation, and its products are exported to more than 85 countries, serving more than 1200 customers. JM Hardware ® products include all kinds of high-strength bolts, nuts, washers, pins, screws and other fasteners. The materials include stainless steel, alloy steel, aluminum alloy parts, copper, special alloys, etc. JM is your one-stop source for all exotic and hard to find alloy fasteners. We stock an immense inventory of Bolts, Nuts, Washers, and Studs in a wide range of hard to find materials. Brass, Silicon-Bronze, Monel, Inconel, Hastelloy, and alloy 20 fasteners are kept in stock and are ready for immediate release. In addition, let us know about your special needs.
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.
Types of Washers – Washers come in various shapes and materials, each with its unique properties and applications. Some common types include: Flat washers: These are the most common type, providing a larger bearing surface to distribute the fastener load evenly. Lock washers: These washers help prevent nuts and bolts from loosening due to vibration. They come in various forms, such as split lock washers and tooth lock washers. Fender washers: These have a larger outer diameter than standard washers, making them ideal for use with thin sheet metal or oversized holes. Applications of Washers – Washers are used in conjunction with nuts and bolts in a wide range of applications.
Recommendation for Clients: For customers looking for an attractive finish without high costs, zinc plating in clear or black is an excellent option. This process enhances the screw’s appearance while providing basic corrosion resistance. Black oxide is another popular surface treatment that gives custom made screws a sleek, matte black finish. This finish is commonly used for decorative purposes and for applications where a non-reflective, uniform appearance is desired. Black oxide also offers moderate corrosion resistance, especially when combined with oil or wax coatings. Recommendation for Clients: If the client prefers a non-reflective, black finish with a slightly more industrial aesthetic, black oxide is a cost-effective option. This finish is often chosen for applications in automotive interiors and some consumer electronics. See many more info on https://www.jm-fastener.com/.
High-Vibration Environments: In environments subject to high vibrations, such as engines, machinery, and vehicles, bolts are preferred due to their ability to maintain a secure connection. The use of lock nuts and washers helps prevent loosening, ensuring the stability and safety of the assembly. High-Temperature Applications: Bolts made from materials with high thermal stability, such as stainless steel or titanium, are suitable for high-temperature applications. These bolts can maintain their strength and integrity under extreme heat, making them ideal for use in engines, turbines, and industrial furnaces. Heavy Load Applications: Applications that involve heavy loads, such as structural steel frameworks, bridges, and heavy machinery, require the high load-bearing capacity of bolts. The use of nuts and washers distributes the load evenly, preventing material deformation and ensuring the durability of the connection.
Construction and Heavy Equipment (240 Hours): Fasteners used in construction and heavy machinery are exposed to various environmental conditions, including moisture, dirt, and chemicals. These fasteners are usually tested for 240 hours to ensure that they remain functional and resistant to corrosion in challenging outdoor environments, such as those encountered on construction sites or in mining operations. Electronics and Medical Devices (24–48 Hours): In electronics and medical devices, fasteners are exposed to moisture, cleaning agents, and other mild corrosive conditions. For these applications, 24 to 48-hour salt spray tests are often sufficient to evaluate the durability and corrosion resistance of fasteners used in enclosures, connectors, and medical instruments.
