What are the payment terms?

We accept T/T, L/C, and Western Union.

How are the products packaged?

Standard packaging is plastic bag + chipboard carton + plywood pallet. Custom packaging is available upon request.

ASME B 18.21.1 Helical Spring-Lock Washers with Black Plated 9/16"

Name: ASME B 18.21.1 Helical Spring-Lock Washers with Black Plated 9/16"
Brand: Ningbo Strong Bolt Trade Co., Ltd.
SKU: 2141042452

Zhejiang, ChinaNingbo Strong Bolt Trade Co., Ltd.

US$0.10

1,000 Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Type

Spring Lock Washer

Material

Carbon Steel

Model NO.

SAE J 2655/ASME B 18.21.1

Combination Washer Structure

Spring Lock Washer

Combination Washer Packaging

Spring Lock Washer

Spring Washer Type

Standard

Process

Cold Forging,Hot Forging,Machining

Transport Package

Small Box & Bulk & Customizing

Specification

9/16"

Trademark

STRONG BOLT

Origin

Ningbo, China

HS Code

7318150000

Production Capacity

2500tons/Year

Key features

Wide Material Selection: Available in Carbon Steel, Stainless Steel, Duplex, Brass, Copper, Plastic, and Aluminum.

Extensive Surface Treatments: Options include Zinc Plated, Galvanized, Nickel Plated, HDG, Anodized, Powder Coating, and more.

Advanced Processing Capabilities: Utilizes Cold/Hot Forging, CNC Machining, Stamping, Rolling, Bending, and Casting techniques.

15+ Years Industry Experience: Typical China supplier with over 15 years of experience in fastener manufacturing and export.

Global Standard Compliance: Professionally exporting under DIN, JIS, GB, ANSI, and BS standards for nonstandard fasteners.

Flexible Customization: Supports custom processes like Cold Forging, Hot Forging, and Machining based on drawings.

Diverse Packaging Options: Standard plastic bag and carton or customized packaging according to customer demands.

Multiple Trade Terms: Supports EXW, FOB, CIF, DDP, CFR, and other terms as discussed.

Company profile

Self-brandedYears of Export ExperienceR&D CapabilitiesCustomization from Designs

Ningbo Strong Bolt Trade Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service AvailableAverage Response Time: ≤3.39h

AI-Powered supplier vetting

SummaryNingbo Strong Bolt Trade Co., Ltd. is a China-based trading company established in 2014 with 16 employees. It reports strong customization and ODM capabilities, new product activity within the past year, and extensive export activity, with 90% of sales from exports and 10 years of export experience. Its stated product output covers several fastener categories, while quality control staffing is reported at 11–20 personnel. However, service-management procedures lack documented records, and the company reports no overseas warehouses, showrooms, agents or branches, or offline trade-show participation. Financial information is identified for 2021–2023, but the provided slices do not give sufficient evidence to assess financial strength. No certification information, customer cases, or SDK availability is provided.

Supplier typeThe supplier is identified as a trading company, specifically Ningbo Strong Bolt Trade Co., Ltd., established in 2014 in Ningbo, Zhejiang, China, with 16 employees and limited-company status. This clearly establishes its business type but does not indicate that it operates as a manufacturing entity.

After-Sales capabilityThe supplier has written procedures for service assessment, supplier approval, corrective and preventive actions, and complaint handling, but no written records are reported for these processes. It also lacks overseas warehouses, showrooms, agents or branches, and reports zero countries with overseas services, limiting evidence of established international after-sales infrastructure.

R&D capabilityThe supplier reports that it introduced new products during the past year and provides ODM services. However, it reports no available SDK, so its innovation evidence supports product development and design services but not software-development integration.

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

Product Q&A

Q:What materials are available for these washers?

We offer Carbon Steel, Stainless Steel, Duplex Stainless Steel, Brass, Copper, Plastic, and Aluminum.

Q:What surface treatments can be applied?

Options include Zinc Plated, Galvanized, Nickel Plated, HDG, Copper Plated, Anodized, Polishing, Powder Coating, Geomet, Dacromet, Passivation, and Electrophoresis.

Q:What is the lead time for orders?

Peak season lead time is one month, while off-season lead time is within 15 workdays.

Q:Do you accept custom orders?

Yes, we support custom processes including Cold Forging, Hot Forging, and Machining based on provided drawings.

Q:What standards do you follow for exports?

We export under DIN, JIS, GB, ANSI, and BS standards, as well as produce nonstandard fasteners.