What is the lead time for production?

Lead time varies by season: within 15 workdays, one month, or 1-3 months depending on peak or off-peak periods.

Do you provide certifications?

Yes, our products come with ISO9001-2008, SGS, CTI, and RoHS certifications.

How should I request a custom product?

Please provide the standard, size, quantity, material, grade, surface finish, and drawings, photos, or samples.

Black Oxide Carbon Steel 100hv 140hv 200hv Square Washer

Name: Black Oxide Carbon Steel 100hv 140hv 200hv Square Washer
Brand: Shanghai Borui Metal Products Co., Ltd.
SKU: 2130198622

Shanghai, ChinaShanghai Borui Metal Products Co., Ltd.

US$0.05

1,000-9,999 Pieces

US$0.03

10,000-99,999 Pieces

US$0.01

100,000+ Pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Type

Square Washer

Material

Carbon Streel/Alloy Steel/Stainless Steel

Model NO.

Square Washer

Combination Washer Structure

None

Combination Washer Packaging

All Inclusive

Spring Washer Type

Standard

Size

Customized Size

Customized Support

OEM ODM Support

Package

Customer'require

Color

Customized Colors

Certificate

ISO9001:2015 ISO14000 Ts16949

Coating

Plain/Black Oxide/Zinc Plated/HDG/etc

Transport Package

Carton+Pallet

Specification

M10-M52

Trademark

Origin

Shanghai

HS Code

3926901000

Production Capacity

50000 Pieces/Year

Key features

Customizable Size: Available in sizes from M3 to M150, with lengths ranging from 5mm to 12 meters.

OEM/ODM Support: Full customization from samples or designs, including specific packaging and colors.

Multiple Material Options: Carbon steel, stainless steel, alloy steel, and special materials like Inconel and Monel.

Various Surface Finishes: Options include Black Oxide, Zinc Plated, Hot-Dip Galvanized, Dacromet, and Nickel Plated.

Wide Standard Compliance: Meets DIN, GB, ISO, JIS, BA, and ANSI standards for global applicability.

Extensive Grade Range: Available in grades Gr4, 8, 10, 12, A2-40, A2-70, A4-80, 2205, 2507, and more.

Versatile Applications: Suitable for structural steel, oil & gas, wind energy, automotive, and home decorating.

Certified Quality: Products certified with ISO9001, SGS, CTI, and RoHS for reliability and safety.

Company profile

High Repeat Buyers ChoiceMulti-language PioneerExperienced TeamExhibition Experience

Shanghai Borui Metal Products Co., Ltd.

Shanghai, China

Business Type: Manufacturer/Factory, Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤1.94hTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier is a Shanghai-based limited trading company with 41 employees, focused on fasteners and related metal, mechanical, plastic, rubber, electrical, and photovoltaic products. It offers sample-, design-, and full-customization services, as well as ODM and OEM services, and reports export sales of 71%–90%. In-stock service is available, but there is no overseas warehouse, showroom, agent, or branch. Financial records are identified for 2022–2024, but no financial values or performance conclusions are provided. Service-process evidence is weak: no written corrective/preventive-action or complaint-handling procedures or records are available, while quality-assurance status and fire-drill status are unknown. No certifications, customer cases, or production facilities are explicitly documented.

Supplier typeThe supplier is identified as a limited company and trading company, with 41 employees, no stated parent-group affiliation, and a Shanghai registered and physical address. Its stated product scope centers on fasteners and related industrial products.

After-Sales capabilityThe supplier has in-stock service capacity, but it has no overseas warehouse, showroom, overseas agent, or branch. More importantly, no written corrective/preventive-action procedures or records and no written customer-complaint procedures or records are available, indicating a documented after-sales process is not demonstrated.

R&D capabilityThe supplier lists research and development of metal products and hardware products, and offers ODM services. However, no SDK is available, and the information does not provide measurable R&D resources, patents, or development outcomes; the documented capability is therefore limited but present.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, and full customization, together with ODM and OEM services for popular brands. These statements provide direct evidence of broad customization and design-manufacturing service capability.