What is the manufacturing tolerance?

The tolerance is +/-0.01mm to +/-0.05mm.

What are the main applications for these fasteners?

Applications include wind towers, nuclear power, railway, automotive industry, construction, and electronic industry.

DIN440 Spot Stainless Steel Extra Large Flat Washer Flat Washer with Square Hole

Name: DIN440 Spot Stainless Steel Extra Large Flat Washer Flat Washer with Square Hole
Brand: Tianchang Guer Fastener Trading Co., Ltd.
SKU: 2070219665

Anhui, ChinaTianchang Guer Fastener Trading Co., Ltd.

US$0.01

1,000-24,999 Pieces

US$0.009

25,000-49,999 Pieces

US$0.008

50,000-999,999,999,999 Pieces

US$0.003

1,000,000,000,000+ Pieces

Sample price:US$5.00/piece.Request sample

Product profile

Customization

Available

Type

Flat Gasket

Material

Stainless Steel

Model NO.

CG402

Combination Washer Structure

A Type

Combination Washer Packaging

All Inclusive

Spring Washer Type

Standard

Transport Package

2000PCS/Bag and 20000PCS/CTN

Specification

M2-M100

Trademark

Cool FASTENER CO., LTD

Origin

Anhui

Production Capacity

50000000PCS/Month

Key features

Custom Size and Type: Custom size or type is available for non-standard requirements.

Wide Material Range: Stainless Steel and other materials available for fasteners.

Multiple Surface Treatments: Options include Zinc Plated, HDG, Black Oxide, Anodization, and more.

Short Delivery Time: Large stock ensures short delivery time, within 15 workdays.

High Precision Tolerance: Manufacturing tolerance ranges from +/-0.01mm to +/-0.05mm.

Broad Application Scope: Suitable for wind towers, nuclear power, railway, automotive, and construction.

Flexible Payment Terms: Supports T/T, LC, D/P, Western Union, PayPal, and small amounts.

Low Minimum Order: Minimum Order Quantity is only 1 kg.

Company profile

Importers and ExportersR&D CapabilitiesFast Delivery

Tianchang Guer Fastener Trading Co., Ltd.

Anhui, China

Business Type: Manufacturer/Factory, Trading Company CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 2 Years CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤3.35h CertifiedTerms of Payment: T/T, LC, D/P, etc.

AI-Powered supplier vetting

SummaryTianchang Guer Fastener Trading Co., Ltd. supplies fasteners and other custom metal components, including rivets, nuts, screws, bolts, pins, bushings, spacers, sleeves, and tubes. It states that it can manufacture nonstandard metal products based on customer drawings or samples, but its documented design and innovation capabilities are limited: it has no private mold, 3D software design, ODM, SDK, or stated recent new-product development capability. The supplier has written procedures for service evaluation, supplier approval, corrective action, and complaint handling, but lacks corresponding records or complete approvals. No supplier-management-system certification is reported. Production-related information includes fewer than five quality-control staff, stated lead times within 15 working days, and broad export-market coverage. No overseas warehouse, showroom, agent or branch, or offline trade-show participation is reported. A TUV Rheinland audit is identified, but the stated audit result is 0 and no...

Supplier typeThe supplier is identified as Tianchang Guer Fastener Trading Co., Ltd., with fasteners as its primary product and a product range covering rivets, nuts, screws, bolts, pins, bushings, spacers, sleeves, and tubes. Its description emphasizes manufacturing nonstandard metal products from customer drawings or samples, indicating a fastener and custom metal-parts supplier rather than a professional technical-services provider.

CertificationsThe supplier-management-system certification field is reported as NIL. Although a TUV Rheinland audit is listed with dates from April 23, 2025 to April 22, 2026, the stated audit result is 0 and the provided information does not identify a certification achieved or explain the result.

R&D capabilityThe supplier reports no private-mold R&D, no 3D software design service, no ODM service, no available SDK, and no new products during the past year. It reports one year of total R&D-engineer experience, so the available evidence indicates limited innovation infrastructure.

Production capacityThe supplier states that it manufactures nonstandard metal products and lists broad fastener-related capabilities. Reported lead times are within 15 working days in both off-peak and peak seasons, while quality-control staffing is fewer than five people; these details support order-production capability but provide limited evidence regarding scale and quality-control depth.

Customization capabilityThe supplier explicitly accepts customer design drawings or samples for custom metal parts and describes customization from samples. Sample completion is stated as 3–7 days when based on available yarns, and production is stated as 10–15 days after deposit and PP-sample confirmation, although the yarn-related wording is not fully consistent with the listed metal-product scope.

Product Q&A

Q:What is the minimum order quantity?

The Minimum Order Quantity is 1 kg.

Q:Can I customize the size or type?

Yes, custom size or type is available, including non-standard customizations.

Q:What surface treatments are available?

Options include Zinc Plated (Yellow, White, Blue, Black), HDG, phosphorization, Black Oxide, Geomet, Dacroment, anodization, Nickel plated, Zinc-Nickel plated, Brass Plated, Tin Plated, Black Plated, Copper Plated, and Gold Plated.

Q:What is the lead time for delivery?

We have large stock to ensure short delivery time. The average lead time is within 15 workdays for both peak and off seasons.

Q:What payment terms do you accept?

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