The Minimum Order Quantity is 1000 PCS.

Do you support OEM/ODM?

Yes, we accept OEM and ODM services for custom requirements.

What standards do you follow?

We follow DIN, ANSI, GB, JIS, GOST, and BSW standards.

Nuts with External Tooth Washer K-Lock Nuts 304 Stainless Steel K Nut

Name: Nuts with External Tooth Washer K-Lock Nuts 304 Stainless Steel K Nut
Brand: Ningbo Zhonglian Fastener Manufacture Co., Ltd.
SKU: 2158291285

Zhejiang, ChinaNingbo Zhonglian Fastener Manufacture Co., Ltd.

US$0.50

1,000-99,999 Pieces

US$0.30

100,000-999,999 Pieces

US$0.10

1,000,000+ Pieces

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel,Stainless Steel

Type

Hexagon Head

Model NO.

GB6170

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN

Grade

4,A2

Certification

ISO9001

MOQ

1000PCS

Delivery Time

7 Days

Sample

Available

Durability

Enhanced

Transport Package

25kg/Carton+Pallet

Specification

M3-M12, 4#-1/2"

Trademark

FAST

Origin

Ningbo, Zhejiang

HS Code

7318160000

Production Capacity

2500tons/Month

Key features

Premium Material Options: Available in Carbon Steel and Stainless Steel with various grades.

Extensive Size Range: Sizes available from M2 to M42 to meet diverse application needs.

Multiple Surface Treatments: Options include Plain, Zinc-Plated, Black Oxide, HDG, and Dacromet.

OEM/ODM Services: Accepts custom manufacturing orders for specific requirements.

Strict Quality Control: 100% inspection at every production link with MTC provided.

Flexible Payment Terms: Supports T/T, LC, D/P, and FOB/CIF/CFR shipping terms.

Free Sample for New Clients: Free standard samples provided; client pays express charges.

Experienced Manufacturer: Established in 1997 with over 20 years of fastener expertise.

Company profile

Ningbo Zhonglian Fastener Manufacture Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedNearest Port: Ningbo Port, Shanghai portAverage Response Time: ≤7.24h CertifiedTerms of Payment: LC, T/T, D/P CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR

AI-Powered supplier vetting

SummaryNingbo Zhonglian Fastener Manufacture Co., Ltd. is identified as a Chinese limited company operating in Zhejiang and producing construction fasteners, including bolts, nuts, screws, washers, and non-standard fasteners. The supplied information shows ISO9001:2015 certification and also references ISO14001, ISOEN14399CE, and ISOEN15048 approvals. Reported manufacturing resources include automatic cold-forging equipment, hot-forging lines, heat-treatment lines, and an inspection center. The company states that it serves international markets and maintains overseas service institutions, but the evidence does not fully establish current service performance. Production information is inconsistent across the slices regarding establishment date, employee count, plant area, and capacity, so scale should be verified. Customization capability is not explicitly demonstrated. Trade records identify buyers in the United Kingdom and Vietnam, but the number of documented transactions is limited.

Supplier typeThe supplier is classified as a combined business entity and limited company in China, with a stated manufacturing address in Zhejiang. Its products, manufacturing equipment, and description identify it as a fastener manufacturer rather than only a trading intermediary.

CertificationsThe supplier explicitly provides an ISO9001:2015 certificate. Its company description also references ISO9001, ISO14001, ISOEN14399CE, and ISOEN15048 approvals, indicating multiple quality, environmental, and product-related certifications or approvals.

After-Sales capabilityThe supplier states that it provides considerate service and has six domestic direct-sale offices plus overseas regional service institutions in Hungary, Dubai, Malaysia, and the UK. These statements support a service network, although no specific after-sales procedures, response standards, or performance evidence are provided.

Production capacityThe supplier reports nearly 100 automatic cold-forging machines, six hot-forging lines, four imported automatic mesh-belt heat-treatment lines, a professional inspection center, and monthly capacity of up to 2,500 tons. It also lists a broad range of fastener products and international standards, providing explicit evidence of substantial manufacturing capability.

Client casesTrade records associate the supplier with CYNTECH ANCHORS LTD in the UK and CÔNG TY TNHH CST INDUSTRIES VIỆT NAM in Vietnam, covering hex screws, hex nuts, and stainless-steel flat washers. These records demonstrate identifiable international buyer activity, but only a small number of transactions are shown.