How do you ensure product quality?

We perform strict 100% visual inspection of finished products by our packing staff.

How are the products packaged?

Products are packed in 25KG per box or bag, placed on strong wooden pallets.

What types of fasteners do you supply?

We supply various bolts, nuts, screws, and washers including DIN standard items like Hex bolts and Flat washers.

Stainless Steel Lock Wassher Spring Washers for Bolts and Nuts

Name: Stainless Steel Lock Wassher Spring Washers for Bolts and Nuts
Brand: Jiaxing Sini Fastener Co., Ltd.
SKU: 906580045

Zhejiang, ChinaJiaxing Sini Fastener Co., Ltd.

US$1,000.00-1,020.00

1 Ton

Sample price:US$0.05/piece.Request sample

Product profile

Customization

Available

Type

Flat Washer

Material

Carbon Steel

Spring Washer Type

Standard

Finish

Zinc-Plating, Plain,Black Oxide, Ect

Transport Package

25kg Per Box or Bag + Strong Wooden Pallets

Origin

Jiaxing, China

HS Code

73181900

Production Capacity

10000ton/Year

Key features

Customizable Finishes: Available in Zinc-Plating, Plain, Black Oxide, and other finishes based on requirements.

OEM and ODM Services: Full customization, minor customization, and flexible customization from samples or designs available.

Fast Delivery: Standard delivery time within 30 days for most orders.

Strict Quality Control: 100% visual inspection of finished products by dedicated packing staff.

Wide Product Range: Comprehensive selection of bolts, nuts, screws, and washers including DIN standards.

Secure Packaging: Items packed in 25KG boxes or bags with strong wooden pallets for safe transport.

Manufacturer Direct: Direct supply from a manufacturer with over 15 years of export experience.

Flexible Payment Terms: 30% deposit required with balance payment due before delivery.

Company profile

R&D CapabilitiesCustomization from Samples100% Finished Products InspectionManagement Certification

Jiaxing Sini Fastener 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: 15 Years CertifiedNearest Port: Shanghai Port; Ningbo PortAverage Response Time: ≤24h

AI-Powered supplier vetting

SummaryThe supplier operates in hardware and mechanical equipment, with stated import/export licensing and products including fasteners. It reports OEM and ODM capability, broad customization options, and manufacturing equipment that includes punching, rolling, deburring, laser cutting, bending, riveting, and hydraulic machines. Export sales account for 90% of total sales, and stated quotation terms include FOB, CFR, CIF, and EXW. However, the available evidence indicates important operational weaknesses: only one production line is reported, there is no valid manufacturing-capacity contract with related subcontractors, no inventory or overseas service infrastructure, no written supplier-service assessment procedure, and no documented corrective-action, complaint-handling, quality-assurance, or traceability systems. No certification information or specific customer cases are provided.

Supplier typeThe supplier is presented as a hardware and mechanical-equipment business, with licensed import/export and technology-import/export activities, plus sales and R&D of hardware products, mechanical equipment, and mechanical components. Its stated product scope includes fasteners such as carriage bolts, indicating a manufacturer/supplier focused on hardware and related mechanical products.

After-Sales capabilityThe supplier has no stated overseas agents or branches, overseas warehouse, overseas showroom, or overseas service countries, and it has no written procedures or records for corrective and preventive actions or customer-complaint handling. These explicit gaps indicate weak documented after-sales and international service infrastructure.

Production capacityThe supplier lists multiple processing machines and reports one production line, a one-month average lead time in both peak and off-season, and 90% export sales. Nevertheless, it lacks a valid manufacturing-capacity contract with related subcontractors, does not continuously reconcile production quantities, has no outsourcing SOP, and has no quality assurance or raw-material traceability, creating material production-control deficiencies.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization through its design and R&D capabilities. It also states that special parts can be manufactured, providing clear evidence of broad customization capability.