Black Phosphated Anti-Corrosion Square Taper Washer

Name: Black Phosphated Anti-Corrosion Square Taper Washer
Brand: Qewitco Fasteners Co., Ltd
SKU: 2117254152

Shandong, ChinaQewitco Fasteners Co., Ltd

US$0.001-0.005

1,000 Pieces

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

Type

Square Washer

Material

Stainless Steel

Model NO.

Square Washer

Combination Washer Structure

A Type

Combination Washer Packaging

All Inclusive

Spring Washer Type

Standard

Delivery

20-30 Days

Certification

127b

Packag Color

Customizable

Thread Standard

Bsw

Custom Order

Customization by Drawing/Sample

ODM/OEM

Available

Service

Custom-Made Service

Material Test Certificate

Have

Sample

Samples in Stock Are Free with Freight Collect

Price Terms

Fob/CFR/CIF/DDP/DAP

Color

Customizable or Sliver

Quality Control

100% Quality Inspection

Application2

Connection, Fastening

Finish

Zinc Plated, Zinc Flake

Transport Package

Bulk Pack Small Boxed

Specification

M2.5 TO M100

Trademark

Qewitco

Origin

China

HS Code

721391

Production Capacity

10000ton/Year

Key features

Precise Angle Compensation: Built-in taper offsets channel steel angles for pure tension loading and stronger connections.

Eliminates Bolt Bending: Prevents dangerous bolt shaft bending and fatigue failure under vibration or heavy loads.

Enhanced Load Distribution: Square shape offers larger surface area to distribute clamp load and prevent material deformation.

High-Strength Material: Manufactured from robust carbon steel for excellent mechanical strength in heavy-duty applications.

Corrosion Resistance: Available with Zinc Plated or Zinc Flake finish for reliable rust protection in various environments.

DIN 434 Compliance: Conforms to DIN 434 standard guaranteeing dimensional accuracy and interchangeability.

Customizable Dimensions: Available in sizes from M2.5 to M100 with customization options based on drawings or samples.

Flexible Packaging: Supplied in Bulk Pack for large projects or Small Boxed for MRO and smaller workshops.

Company profile

Years of Export ExperienceExperienced TeamSelf-brandedHigh Repeat Buyers Choice

Qewitco Fasteners Co., Ltd

Shandong, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2003-12-05Average Response Time: ≤0.70hTerms of Payment: T/T

AI-Powered supplier vetting

SummaryThe supplier demonstrates established export experience, with 90% of sales from exports and 22 years of exporting. It has ISO9001:2015 certification, raw-material traceability, quality assurance, and 100% finished-product inspection, although inspection is performed by packing staff and only two quality inspectors are reported. Customization is broad, covering samples, designs, full customization, minor customization, and flexible customization. Service strengths include in-stock capability, stated lead times within 15 workdays in both peak and off-season, and multiple payment and quotation terms. Limitations include no overseas warehouse, showroom, agent, branch, or overseas service-country coverage, no Fortune 500 cooperation, no new products launched in the last year, one R&D engineer, no popular-brand OEM, and an undocumented corrective/preventive-action process. Financial credibility cannot be assessed because the provided financial figures are excluded from evaluation.

Supplier typeThe supplier is strongly export-oriented, reporting 90% export sales and 22 years of export experience. It can provide in-stock service and accepts FOB, CIF, CFR, and EXW terms, but reports no overseas warehouse, showroom, agent, branch, or overseas service-country coverage.

CertificationsThe supplier reports an ISO9001:2015 certificate for both sustainable development management and management systems, plus other product compliance or sustainability certifications. The specific additional certifications are not identified, so the evidence supports ISO9001 holding but not broader certification strength.

R&D capabilityThe supplier reports one R&D engineer and no new products launched during the previous year. It also reports no available SDK and no popular-brand OEM capability, which indicates limited documented innovation evidence.

Production capacityProduction-related evidence includes raw-material traceability, 100% finished-product inspection, quality assurance, four own-brand quality-control capabilities, inventory capacity, and lead times within 15 workdays in both peak and off-season. Only two quality inspectors are reported, and finished products are checked by packing staff, so production capability is positive but quality-control depth is limited.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. This is direct evidence of broad customization capability.

Product Q&A

Q:Do you accept customized orders?

Yes, we specialize in OEM and ODM services. We can customize products such as bolts, screws, nuts, and tools according to your specifications, drawings, and samples.

Q:What are your payment terms?

Our standard payment terms are a 30% deposit via T/T, with the 70% balance due before shipment. Other payment methods like L/C are negotiable for long-term partners.

Q:Which trade terms do you offer?

We commonly offer FOB, CFR, CIF, DDP, and DAP. Other Incoterms can be discussed based on your specific needs and requirements.

Q:How do you ensure product quality?

We guarantee high quality through strict quality control procedures at every stage of production, from raw material inspection to final packaging.

Q:What is your company's experience?

With over 20 years of experience in the industry, we possess extensive expertise in fastener manufacturing and global supply chain management.