Carbon Steel Plain Washer PTFE Coated Blue 4.8-12.9 Grade in USS 1/4 to 5/8 Sizes with ISO/ASME/DIN/JIS/GB Standards
Price:
Negotiable
MOQ:
1 00 pieces
Delivery Time:
8-20days
Brand:
FLRS or OEM
Product Description
Carbon Steel Plain Washer with PTFE Coating
These blue PTFE-coated carbon steel plain washers provide superior corrosion resistance and reduced friction in demanding industrial applications. Available in grades 4.8-12.9 and compliant with ISO, ASME, DIN, JIS, and GB standards.
Product Overview
Plain washers, also known as flat washers, are thin disc-shaped components with a central hole that distribute pressure, reduce friction, prevent leakage, isolate components, and protect bearing surfaces from damage.
Key Functions
- Increase contact area between bolts and machinery surfaces
- Prevent surface damage during spring washer unloading
- Reduce compressive stress on bearing surfaces
- Protect connected parts from deformation under substantial axial force
US Standard Specifications
| Specification | Minor Diameter (mm) | Outside Diameter (mm) | Thickness Tolerance (mm) | Thickness Range (mm) |
|---|---|---|---|---|
| USS 3/16 | 6.22-6.73 | 14.15-14.66 | 0.91-1.65 | 0.91-1.40, 1.40-1.65 |
| USS 1/4 | 7.80-8.31 | 18.47-19.02 | 1.30-2.03 | 1.30-1.65, 1.65-2.03 |
| USS 5/16 | 9.40-9.91 | 22.05-22.99 | 1.63-2.64 | 1.63-2.20, 2.20-2.64 |
| USS 3/8 | 11.00-11.51 | 25.22-26.16 | 1.63-2.64 | 1.63-2.20, 2.20-2.64 |
| USS 7/16 | 12.57-13.08 | 31.57-32.51 | 1.63-2.64 | 1.63-2.20, 2.20-2.64 |
| USS 1/2 | 14.15-14.60 | 34.75-35.69 | 2.18-3.35 | 2.18-2.70, 2.70-3.00, 3.00-3.35 |
| USS 5/8 | 17.30-18.24 | 44.27-45.21 | 2.74-4.06 | 2.74-3.20, 3.20-3.60, 3.60-4.06 |
Installation Guidelines
For optimal performance, install with spring washer between plain washer and nut, ensuring plain washer contacts the machine surface directly.
Industrial Applications
- Machinery and automotive manufacturing
- Road, bridge, and tunnel construction
- Urban railway systems and high-speed railways
- Watercraft, thermal power, wind power, and nuclear power facilities
- Petrochemical, aerospace, and steel roof constructions
Product Documentation
Technical Diagram - Carbon Steel Plain Washer PTFE Coated
Product Photo - Carbon Steel Plain Washer PTFE Coated in Blue
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shaanxi Flourish Industrial Co., Ltd.
Location
No.3939 Eurasian Ave., Chanba Ecological District, Xi'an, China
Contact Person
Fiona Hou