What regions do you export to?

We mainly export to Europe, South America, and Southeast Asia, with strong experience in handling international logistics and customs procedures.

How do you ensure product quality?

We have a strict quality control system, including raw material inspection, in-process checks, and final product testing to ensure every item meets industry standards.

Is your packaging safe for international shipping?

Yes, our products are securely packed in plastic bags, cartons, and reinforced pallets, with additional wrapping to prevent damage during transit.

Can you help with custom labeling and packaging?

Yes, we offer custom labeling and packaging solutions to match your brand requirements.

What payment terms do you accept?

We support T/T, L/C, and other negotiable terms, and we are flexible to accommodate your financial arrangements.

DIN25201 Black Oxide Lock Washer High Strength for Structural Bolts

Name: DIN25201 Black Oxide Lock Washer High Strength for Structural Bolts
Brand: Ruian Ruiqin Standard Parts Co., Ltd.
SKU: 2115404102

Zhejiang, ChinaRuian Ruiqin Standard Parts Co., Ltd.

US$0.01-0.03

500 Sets

Sample price:US$0.01/set.Request sample

Product profile

Customization

Available

Type

Lock Washer

Material

Carbon Steel

Model NO.

DIN25201

Combination Washer Structure

A Type

Combination Washer Packaging

All Inclusive

Spring Washer Type

Standard

OEM

Available

Application

Used in Between The Nut and Bolt.

Temperature Range

-196°C ~ +800°C

Structural Features

Sealing Performance

Surface Treatment

Dacromet Coating ,Black Oxide Finish,Color Zinc

Transport Package

Carton+Pallet

Specification

M3-M80 ss & sp

Trademark

RUIQIN

Origin

China

HS Code

7318150000

Production Capacity

60000000piece/Years

Key features

Wedge-Locking Anti-Loosening: Double-layer design with multi-tooth engagement prevents loosening under high vibration.

Full Customization Options: Customizable size, material (65Mn, Stainless Steel), and surface treatments (Dacromet, Zinc).

Efficient Installation Design: Pre-bonded wide-tooth surfaces allow easy installation and support multiple reuses.

Wide Application Range: Ideal for railways, wind energy, heavy machinery, automotive, and construction engineering.

Secure International Packaging: Plastic bags, cartons, and reinforced pallets with stretch film for damage-free transit.

Rapid Bulk Delivery: Standard lead time of 15-30 days with sufficient inventory for immediate shipment.

Strict Quality Control: Comprehensive inspection from raw materials to final testing ensures industry standards.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceFast DeliveryIn-stock Capacity

Ruian Ruiqin Standard Parts 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: 8 years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤5.09h

About Our Factory & Business Background

AddressNo. 13, Luoshan Avenue, Xia Lin Village, Hai'an, Tangxia Town, Rui'an City, Wenzhou, Zhejiang, China

Plant Area1800 square meters

Number of Employees46

Terms of PaymentLC, T/T, D/P, PayPal, Western Union, Small-amount payment

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Minimum Order Quantity100 pcs

Supply Chain Partners10

Our Production Capability & Technical Expertise

Main ProductsMetal Washer, Retaining Ring, Bearing Clamp

Production Lines3

Production MachinesPunching machine

QA/QC inspectors4 people

Inspection Type for Finished ProductsRandom inspection(Visual inspection)

Inspection Method for Finished ProductsHave instructions and uniformly followed

R&D Engineers3 people

Traceability of Raw MaterialsYes

Our Industry Experience & Global Business Record

Year of Establishment2017-04-07

Main MarketsDomestic

Repeat Buyers Choice80%~100%

Number of Foreign Trading Staff5

Overseas Agent/BranchNo

New Products Launched in Last yearNo

Our Certifications, Standards & Industry Recognition

Cooperated with Fortune 500No

Product Q&A

Q:Can I customize the size, material, and surface treatment of the washers?

Yes, we offer full customization options, including size, material (65Mn, stainless steel, etc.), and surface treatment (Dacromet, zinc plating, etc.) to meet your specific requirements.

Q:What is the typical lead time for bulk orders?

Our standard lead time is 15-30 days, depending on the order quantity and product specifications. We can also coordinate delivery schedules to match your project timeline.

Q:Do you support small trial orders?

Yes, we accept small trial orders to help you test the quality and fit of our products before placing larger orders.

Q:Which shipping methods do you provide?

We offer a range of shipping methods, including ocean freight for bulk orders and express delivery for smaller quantities.

Q:Can you provide samples before placing an order?

Yes, we provide free samples, but the shipping cost is covered by the buyer.