High quality custom bolt provider: JM Hardware® is a leading distributor and manufacturer of high quality metal washers for all industrial applications. We work with the top manufacturers in the industry to provide you with a full line of high performance washers and maintain an extensive inventory to provide quick delivery of your parts. We provide all quantities from short run through full production. Expert coating and finishing services are available at our facility to finish your washers to your exact requirements. Our experienced staff will work with you to assist in the selection of your washers and custom finishing services to provide the right product to you every time, with quick, on-time delivery. Read a lot more information on custom screw.
JM Hardware offers both standard and custom fasteners to meet different grades and specifications. This ensures we can cover the full spectrum of our manufacturing customers’ applications, including: Mining, Heavy equipment, Construction,Transportation,Automotive,Energy and alternative energy. JM has exported its hardware parts to over 70 countries around the world. We will make unremitting efforts to provide hardware parts with high quality and reasonable prices for our customers. We faithfully enforce ISO9001:2015 and Registered trademarks in the United States, the European Union and the United Kingdom. Every product meets international standards.
Captive screws, also known as captive panel screws or captive fasteners, feature a permanently attached washer or retainer that prevents the screw from becoming lost or misplaced. They are commonly used in equipment enclosures, access panels, and electronic devices where frequent maintenance or servicing is required. Shoulder screws, also known as shoulder bolts or stripper bolts, feature a cylindrical shoulder between the head and the threads. They are used in applications requiring precise alignment or spacing, such as machinery, automotive components, and tooling fixtures. Shoulder screws may have hex, socket, or slotted heads and are available with various shoulder diameters and lengths.
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.
To help our clients achieve the best results at the most affordable price, we recommend using zinc plating or black oxide for standard applications. These options provide a balance between cost, appearance, and durability. For clients looking for more specific finishes or higher-end performance, treatments like anodizing or powder coating may be worth considering. Ultimately, the choice of surface treatment depends on the client’s specific needs, the product application, and the desired aesthetic. At JM Hardware, a professional custom screw manufacturer, we are committed to providing high-quality surface treatments for screws and fasteners, ensuring that our clients receive the best combination of aesthetics, performance, and cost-efficiency. Read even more information at jm-fastener.com.
Uniform Load Distribution: The use of a washer with a bolt helps to distribute the load evenly across the surface of the material. This uniform distribution reduces the stress concentration at any single point, preventing damage and extending the lifespan of the assembly. In contrast, screws can create high-stress points that may lead to material fatigue and failure over time. Versatility in Materials and Sizes: Bolts are available in a wide range of materials and sizes, making them suitable for diverse applications. They can be made from steel, stainless steel, brass, titanium, and other materials, each offering specific benefits such as corrosion resistance, high strength, or lightweight properties. The availability of different sizes allows for precise matching with the requirements of the application.
Recommended Salt Spray Test Durations for Different Industries and Applications: Different industries and applications require varying salt spray test durations depending on the environment in which the fasteners will operate. Here are some general guidelines: Marine and Offshore Industries (1000+ Hours): Fasteners used in marine and offshore applications, such as shipbuilding, offshore oil rigs, and coastal infrastructure, are exposed to highly corrosive saltwater environments. For these applications, fasteners typically undergo 1000-hour or longer salt spray tests to ensure long-term protection against rust and corrosion. These custom machine fasteners may be coated with durable materials like zinc, nickel, or stainless steel to improve corrosion resistance.