What is the lead time?

The average lead time is one month for both peak season and off-season.

What is your inspection process?

We perform 100% visual inspection on finished products with 8 QA/QC inspectors following uniform instructions.

Wave Washer Curved Spring Washers Spring Lock Washers

Name: Wave Washer Curved Spring Washers Spring Lock Washers
Brand: Zhejiang Ruizhao Technology Co., Ltd.
SKU: 739482462

Zhejiang, ChinaZhejiang Ruizhao Technology Co., Ltd.

US$0.01-0.20

1,000 Pieces

Sample price:US$0.05/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Spring Washers

Model NO.

SL218

Standard

DIN

Grade

8.8

Application

Machinery

Finish

Color-Zinc Plated

Thread

Metric or Inch

Transport Package

Carton+Pallet

Specification

Customer request, M6 to M16

Trademark

Origin

Wenzhou. China (Mainland)

HS Code

7318150000

Production Capacity

600tons/Month

Key features

Diverse Material Options: Available in carbon steel, alloy steel, stainless steel, brass, and bronze.

Multiple Surface Finishes: Offers galvanized, dacromet, zinc plated, nickel alloy plated, and polishing options.

Comprehensive Certifications: ISO 9001 and ISO/TS 16949 certified with 100% visual inspection for finished products.

Flexible Customization: Supports full customization, minor customization, and customization from samples or designs.

Advanced Manufacturing: Equipped with fully automatic equipment, CNC lathes, and cold heading machines.

Wide Standard Compliance: Meets DIN, ANSI, ASTM, JIS, GB, ISO, and IFI standards.

Customizable Thread Types: Thread options available in Metric or Inch specifications.

OEM and ODM Services: Full OEM and ODM services available with 4 dedicated R&D engineers.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceSelf-brandedPatents Awarded

Zhejiang Ruizhao Technology Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 7 Years CertifiedNearest Port: Ningbo Port, ShanghaiPortAverage Response Time: ≤7.59h

AI-Powered supplier vetting

SummaryThe supplier is identified as a Wenzhou-based trading company engaged in wholesale, automotive-related sales, and import/export activities. It demonstrates broad customization and ODM capability, reports new products in the past year, and provides OEM services for recognized brands. Quality-related procedures include documented inspection, traceability, complaint handling, and quality assurance. However, it has no available SDK, overseas warehouse, showroom, agent, or branch, and no Fortune 500 cooperation is reported. Production ownership and detailed financial credibility remain insufficiently evidenced.

CertificationsThe supplier reports ISO 14001 and ISO 45001:2018 certificates, along with other management-system certification information. The slices do not provide certificate numbers, validity dates, scopes, or independent verification, so the breadth and current status of certification cannot be fully assessed.

After-Sales capabilityThe supplier has documented and followed procedures for handling customer complaints and corrective/preventive actions, plus stated quality assurance and traceability controls. However, it has no overseas warehouse, showroom, agent, or branch, which limits evidence of localized overseas after-sales support.

R&D capabilityThe supplier reports new products during the past year, provides ODM services, and holds one national science and technology progress award. It has no internationally recognized design awards and no available SDK, but these limitations do not negate the stated product-development evidence.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM service availability, providing direct evidence of broad customization support.

Client casesThe supplier reports OEM service for recognized brands and an 80%–100% repeat-buyer preference range. It reports no cooperation with Fortune 500 companies, and no specific customer names, project descriptions, or verifiable case studies are provided.

Product Q&A

Q:Are you a factory or trading company?

We are a Manufacturer who got import export certificate.

Q:Why choose us?

We had advanced fully automatic equipment to improve the production efficiency and offer good delivery time and best price, With ISO 9001 and ISO/TS 16949 certified. From material selection to parts production, we conform to the strictest quality requirements.

Q:What is your main products?

Hex Flange Bolts, Sems Screws,Hex Bolts, Rivets, Stud Bolts , Non standard Bolts, High Tensile Bolts, Auto Components, Custom CNC Parts.Automotive fasteners, CNC parts, Customized fasteners, screw, bolt, nut .hardware , hand tools, stainless steel fasteners, wheel nut, auto parts. tapping screw, drilling screw, stamping parts, hose clamp. grease nipple , flange bolt, hex nut, flange nut. wheel bolt, key, screws. ball pin, clamp screw, window hardware, flange bolt, socket screw,sems screws, assem

Q:What is the minimum order quantity?

The minimum order quantity is 500kg.

Q:What are the payment terms?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payment.