Precision Hardware
Flat washers for Bolt Screw
Source metal flat washers in carbon steel, SS304, SS316, brass, copper, and aluminum. DIN, ISO, GB/T and ASME options. Contact Juniq Precision for specifications and quotations.
Features
- Multiple Material Options
- Precision and Commercial Grades
- Various Dimensions
- Multiple Surface Finish Options
- Chamfering is optional
Applications
Metal Flat Washers for Bolt Screw
Reliable Industrial Solutions for Metal Work and Industrial Applications
👉 Send us inquiry now for bulk pricing, customization, or technical support.
JUNIQ Flat Washers
Metal Flat Washers are essential fastening components designed to distribute clamping loads, protect contact surfaces, and provide a stable bearing surface between bolts, screws, nuts, and assembled parts. Jun iq Precision supplies metal flat washers in carbon steel, stainless steel SS304 (A2), stainless steel SS316 (A4), brass, copper, and aluminum for industrial and commercial fastening applications.
Our flat washers for bolts and screws are available in different dimensions, material options, and surface finishes to suit machinery, equipment assembly, construction, metal fabrication, and general hardware applications. Standard-based and customized specifications can be discussed according to your project requirements.
Looking for a reliable metal flat washer supplier? Send us your required inner diameter, outer diameter, thickness, material, and quantity for specification confirmation and a quotation.
Contact Us ↓↓↓
Email: info@juniqprecision.com
WhatsApp: +86 151 5226 0167
Website: www.juniqprecision.com
Wuxi Juniq Precision Industrial Co., Ltd.
Why Choose Our High Quality Flat Washer ?
✅Load Distribution
A metal flat washer increases the bearing area beneath a bolt head or nut, helping distribute clamping force over the contact surface. This can reduce localized pressure and help protect softer or finished materials from damage.
✅Surface Protection
Using a suitable flat washer between fastening components and the assembled surface can help reduce scratches, indentation, and direct metal-to-metal contact during installation.
✅Material Selection for Different Environments
Carbon steel flat washers are commonly used for general fastening applications. SS304 and SS316 stainless steel washers may be suitable for applications requiring corrosion resistance. Brass, copper, and aluminum flat washers are available for selected electrical, mechanical, and specialized assemblies.
✅Flexible Specification Matching
Choosing the correct inner diameter, outer diameter, thickness, material, and surface treatment helps ensure that a flat washer fits the bolt or screw and performs as intended in the assembly.
JUNIQ Precision Flat Washer
The following table provides an overview of available specifications. Final dimensions and mechanical properties should be confirmed against the selected standard and material.
| Parameter | Specification |
|---|---|
| Product Name | Metal Flat Washers for Bolt Screw |
| Product Type | Flat Washer / Plain Washer |
| Material | Carbon Steel, Stainless Steel SS304 (A2), Stainless Steel SS316 (A4), Brass, Copper, Aluminum |
| Applicable Standards | GB/T 95, GB/T 97.1, DIN 125A, DIN 9021, ISO 7089, ASME B18.22.1, as applicable |
| Product Grade | Grade A (Precision) / Grade C (Commercial), where applicable |
| Hardness Options | 100 HV / 200 HV / 300 HV, subject to material and specification |
| Inner Diameter (ID) | According to the selected standard and size |
| Outer Diameter (OD) | According to the selected standard and size |
| Thickness | According to the selected standard and size |
| Surface Treatment | Plain Finish, Black Oxide, Zinc Plating, Hot-Dip Galvanizing, Nickel Plating, Passivation, subject to availability |
| Surface Appearance | Natural Metal, Black, Silver, or other available finishes |
| Corrosion Resistance | Depends on base material, surface treatment, and operating environment |
| Application | Bolts, Screws, Nuts, Machinery, Equipment, Construction, and General Fastening |
| Customization | Material, dimensions, and surface treatment, subject to confirmation |
| Packaging | Bags, Cartons, Bulk Packaging, or customized packaging, subject to order requirements |
Need a specific size? Send Jun iq Precision your bolt or screw size, washer dimensions, preferred material, applicable standard, and order quantity. We will help confirm the suitable specification.
Available Materials and Surface Treatments:
| Material | Typical Applications | Possible Surface Treatment |
|---|---|---|
| Carbon Steel | General machinery, equipment assembly, and construction | Zinc Plating, Black Oxide, Hot-Dip Galvanizing, Plain Finish |
| Stainless Steel SS304 (A2) | General industrial and outdoor fastening applications | Plain Finish, Passivation, subject to availability |
| Stainless Steel SS316 (A4) | Applications requiring enhanced corrosion resistance | Plain Finish, Passivation, subject to availability |
| Brass | Selected electrical, decorative, and mechanical assemblies | Plain Finish, Nickel Plating, subject to availability |
| Copper | Electrical and specialized mechanical applications | Plain Finish, Nickel Plating, subject to availability |
| Aluminum | Lightweight assemblies and selected equipment applications | Plain Finish or other compatible treatments, subject to availability |
Surface treatment availability depends on the material, washer dimensions, order quantity, and required finish. Confirm the exact treatment before ordering.
Choosing and Installation Instructions
How to Select and Install Flat Washers?
1Identify the Bolt or Screw Size: Confirm the nominal fastener diameter and the required washer dimensions.
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2.Select the Material: Choose carbon steel, SS304, SS316, brass, copper, or aluminum according to load, corrosion exposure, and application requirements.
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3.Confirm the Standard: Check the applicable DIN, ISO, GB/T, or ASME specification and verify dimensions.
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4.Choose the Surface Treatment: Select a compatible finish based on corrosion protection, appearance, and operating conditions.
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5.Install Correctly: Place the flat washer between the bolt head or nut and the bearing surface as specified by the assembly design.
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6.Tighten Appropriately: Follow the equipment or fastener manufacturer's recommended tightening torque. A flat washer does not automatically prevent loosening.
For more details ,please kindly feel free to contact our sales engineer directly.
How to Select and Install Flat Washers?
1Identify the Bolt or Screw Size: Confirm the nominal fastener diameter and the required washer dimensions.
-
2.Select the Material: Choose carbon steel, SS304, SS316, brass, copper, or aluminum according to load, corrosion exposure, and application requirements.
-
3.Confirm the Standard: Check the applicable DIN, ISO, GB/T, or ASME specification and verify dimensions.
-
4.Choose the Surface Treatment: Select a compatible finish based on corrosion protection, appearance, and operating conditions.
-
5.Install Correctly: Place the flat washer between the bolt head or nut and the bearing surface as specified by the assembly design.
-
6.Tighten Appropriately: Follow the equipment or fastener manufacturer's recommended tightening torque. A flat washer does not automatically prevent loosening.
For more details ,please kindly feel free to contact our sales engineer directly.
Where Split Lock Washers Are Used？
✅Industrial Machinery and Equipment
Metal flat washers for bolts and screws are used in machinery frames, equipment housings, mounting brackets, and mechanical assemblies. The washer helps distribute clamping force across the contact surface.
✅Automotive and Mechanical Assemblies
Suitable flat washers can be used in selected vehicle components, repair work, maintenance, and mechanical fastening assemblies. Material and specification should be selected according to the design requirements.
✅Electrical and Electronic Equipment
Brass, copper, aluminum, and stainless steel washers may be used in selected electrical enclosures, mounting assemblies, and equipment installations. Electrical conductivity and other application requirements should be evaluated before material selection.
✅General Hardware and Maintenance
Metal flat washers are widely used in equipment repair, furniture hardware, installation work, and routine maintenance where a suitable bearing surface is required beneath a bolt head or nut.
✅Construction and Metal Fabrication
Carbon steel and galvanized flat washers are commonly used with bolts and screws in structural components, metal frames, brackets, and general construction fastening applications.
Other Products of JUNIQ pRECISION
Tailored Fasteners Solutions
Specializing in custom fasteners, we provide customers with integrated fastener solutions ranging from demand analysis, product design and development, manufacturing to quality verification.
Customization Options
- ✓Grade
- ✓Size
- ✓Material
- ✓LOGO
- ✓Packaging
OEM / ODM Services
- ✓ Private label and branding
- ✓ Custom packaging design
- ✓ Performance formulation adjustments
- ✓ Sample and trial order support
- ✓ Competitive MOQ negotiation
How are Our Flat Washer Shipped?
Metal flat washers can be packed in bulk bags, inner bags, cartons, or other suitable packaging according to order quantity and handling requirements. Customized labeling and packaging can be discussed before order confirmation.
For a quotation, please provide the product material, washer dimensions, applicable standard, surface treatment, quantity, and destination country. Packaging and shipping arrangements will be confirmed according to the order.
Inquiry & Specification
Contact our sales team with your required specifications including size, material and quantity. We will provide a detailed quotation within 24 hours.
Packaging
Standard industrial packaging ensures safe transit. Custom packaging and labeling available for OEM customers. Bulk orders shipped on pallets with protective wrapping.
Delivery & Lead Time
Standard production lead times range from 7–15 days depending on order quantity and specifications. Express shipping options available for urgent requirements.
Why Choose JUNIQ Precision?
What Can We Help With?
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Multiple Material Choices: Options for general industrial, corrosion-sensitive, and specialized applications.
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Specification Support: Assistance with confirming dimensions, standards, and material requirements.
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Flexible Sourcing: Standard and customized requirements can be discussed.
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Clear Communication: Share your drawings, specifications, or sample requirements for review.
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Quotation Support: Provide your required quantity and delivery destination so the order details can be evaluated.
Juniq Precision supports B2B customers sourcing metal flat washers and other industrial fastening products. We help buyers compare materials, dimensions, standards, and finish options to identify suitable products for their projects.
Whether you need carbon steel flat washers for general assembly or stainless steel flat washers for selected demanding environments, contact us to discuss your requirements.
- 👉 Click here to send an inquiry
📧 Email: info@juniqprecision.com
📞 Phone/WhatsApp: +86-151-5226-0167
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