Stainless Steel Hex Long Nuts Coupling Nuts M3 M4 M5 M6

Name: Stainless Steel Hex Long Nuts Coupling Nuts M3 M4 M5 M6
Brand: Jiaxing Sini Fastener Co., Ltd.
SKU: 926050735

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

Material

Carbon Steel

Type

Hexagon Head

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN

Grade

4.8

Origin

Jiaxing, China

HS Code

73181600

Production Capacity

10000ton/Year

Key features

Customized Sizes and Tolerances: Diameter M2-M12, Length 12-500mm, Tolerance +/- 0.01-0.05mm, fully customizable.

Wide Material Selection: Available in Stainless Steel, Carbon Steel, Aluminum, and various alloys.

Multiple Surface Treatments: Options include Zinc, Blue, Yellow, Dacromet, Plated, Plain, and Hot DIP Galvanizing.

OEM and ODM Services: Full customization from samples and designs with flexible customization options.

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

Fast Delivery for Stock Items: Delivery within 2 days after payment receipt for in-stock products.

Competitive Pricing: Professional manufacturer offering competitive prices for bulk orders.

Flexible Payment Terms: 30% T/T advance, 70% before shipment; PayPal accepted for small amounts.

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: ≤15h

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.

Product Q&A

Q:What are your main products?

Fasteners, sheet metal parts, Bolt, nut, screws, washer, threaded rod, anchors, self tapping screws, self driling screws, stainless steel plate, etc.

Q:How long is your delivery time?

It depends on whether we have stock, if we have stock products, we can delivery in 2 days after receive the payment. And normally our production time is in 15-20 workdays for one container (20-26 ton).

Q:What is your after-sale service?

We produce your order strictly by your request.The product is remanufactured after sample confirmation. If there is quality problem. please provide photos or test reports, we will replace defective goods or return funds

Q:What is your payment term?

Mostly we use 30% advance payment by T/T, 70% before shipment.For small amount order, we have paypal account.

Q:How can I get the quotation?

Please send us information for quote: drawing, material, weight, quantity and request,we can accept PDF, ISGS, DWG, STEP file format. If you don't have drawing, please send the sample to us,we can quote base on your sample too.

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Jiaxing Sini Fastener Co., Ltd.

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Stainless Steel Hex Long Nuts Coupling Nuts M3 M4 M5 M6