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ALV is a lightning-fast shipping wholesaler of competitive-priced washers.
ALV offers durable and corrosion-resistant washers.
Our product range includes flat washers, spring washers, serrated lock washers, and more.
Making the right choice can significantly impact the strength and lifespan of your project.
This is where stainless steel washers shine brightly.
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Solar panel mounting washers are essential components for mechanical stability and structural integrity of solar mounting systems. They evenly distribute loads, reduce stress concentration, and prevent long-term damage in residential and commercial solar installations.
These washers are also widely used in industries such as automotive, medical, marine, and industrial equipment, where load distribution and vibration resistance are critical. When selecting solar washers, consider material, hole diameter, thickness, and surface treatment for optimal strength and corrosion resistance.
Flat washers evenly distribute fastener loads and prevent surface damage. Ideal for solar racking, panel mounting, and industrial applications. Made from high-grade stainless steel with optional carbon steel or nylon, available in M3–M10 and customizable finishes (zinc plating, galvanization, colored coatings).
| Washer Type | Common Sizes | Material | Surface Treatment | Application |
|---|---|---|---|---|
| Flat Washer | M3, M4, M5, M6, M8, M10 | Stainless Steel, Carbon Steel, Nylon | Plain, Zinc-Plated, Galvanized, Custom Colors | Solar Mounting, Industrial Fastening, Automotive |
| Spring Washer | M3, M4, M5, M6 | Stainless Steel, Carbon Steel | Plain, Zinc-Plated | Vibration-Resistant Mounting Applications |
| Serrated Lock Washer | M3, M4, M5, M6 | SS 304/316, Carbon Steel, Alloy Steel, Brass | HDG, PTFE Coating, Plain, Galvanized | Dynamic Load and Locking Systems |
Spring washers (split lock washers) resist loosening from vibration or dynamic loads. Their helical shape generates tension and friction to maintain tight connections. Suitable for wood, metal, and composite materials.
Serrated lock washers provide superior anti-loosening performance even without high initial preload. Radial serrations grip surfaces, ideal for systems with vibration or movement. Available in stainless steel, alloy steel, and brass with protective coatings.
Flat washers, spring washers, serrated lock washers, sealing washers, and custom-designed options.
Stainless steel (304, 316), carbon steel, brass, nylon, and specialty alloys.
Yes: plain, galvanized, zinc-plated, black oxide, PTFE-coated finishes.
Varies by washer type and size. Contact our sales team for a quote.
Yes, drawings, dimensional charts, and performance data sheets are available upon request.
Full inspection protocols and lab testing to meet international quality standards.
Distribute load, prevent fastener loosening, absorb vibrations, and provide insulation against galvanic corrosion.
Generally non-magnetic, but cold working or manufacturing-induced phase changes may cause slight magnetism.
Match the washer’s inner diameter to the bolt or screw outer diameter for optimal load distribution and secure fastening.
Flat washers may be reused if undamaged; spring or serrated lock washers should be replaced after use.
For pricing, samples, or custom specifications, submit an inquiry or reach out to our sales team.
Xiamen Al Import & Export Co. Ltd.
ALV is a subsidiary of Fujian Aal Aluminum , which is an integrated industry and trade company. We have a complete solar mount manufacturing capability that can support us to provide one-stop solution for OEM/ODM custom category customers.
Phone: +86 18059206413
Email:alv@xmalv.com
WhatsApp: +86 18059206413
Address: Room905,No.506, Xinglinwan Road, Jimei District
