What is the difference between A2 and A4 stainless steel bolts?

A2 (304) is ideal for standard outdoor and industrial use, while A4 (316) contains molybdenum, offering higher corrosion resistance for marine, chemical, and salt-spray environments.

Do you provide matched nut & bolt or nut & washer kits?

Yes. We can supply pre-packed sets or assembly kits customized for distributors or hardware chains.

Custom Processing DIN934 Standard Hex Nuts 304 Stainless Steel Carbon Fully Threaded External Hex Nuts for Automotive Use

Name: Custom Processing DIN934 Standard Hex Nuts 304 Stainless Steel Carbon Fully Threaded External Hex Nuts for Automotive Use
Brand: Ningbo Mianxuan Import &Export Co., Ltd.
SKU: 2305790015

Zhejiang, ChinaNingbo Mianxuan Import &Export Co., Ltd.

US$0.10

300-9,999 kg

US$0.07

10,000-24,999 kg

US$0.04

25,000+ kg

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Type

Hexagon Head

Model NO.

DIN934

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, GOST, BSW, ISO

Grade

A2 A4

Surface

Plain, Zinc Plated (Blue, White, Black, Yellow), N

Quality

Tested 100%

Price

Factory Price

Lead Time

30-60 Days

Package

Standard Package or Customer's Packing

Box

Customer's Box/Plain Box

MOQ

Can Be Negotiated

Shipment

by Sea / Plane / Express / Truck

Exterior Finish

Customized

Sample

Available

Customized

Available

Service

One-Stop Service

OEM/ODM

Available

Head

Hexagonal

Transport Package

Bulk Packaging, Small Box(Glue Box, Color Box)

Specification

M5-M160

Trademark

Mianxuan, Customized

Origin

Ningbo China

HS Code

7318151001

Production Capacity

1000tons Per Month

Key features

Wide Size Range: Standard sizes M1-M160 available with non-standard options upon request.

Multiple Material Options: Carbon Steel, Stainless Steel, Brass, and other materials available.

Diverse Surface Finishes: Plain, Black, Zinc, Yellow Zinc, HDG, Dacromet, and other finishes.

Comprehensive Standards: Complies with DIN, ISO, ANSI/ASTM, GB, BSW, JIS, and other standards.

OEM/ODM Services: Custom production based on samples, drawings, and specific drive combinations.

Sample Availability: Free or low-cost samples provided for quality and dimension confirmation.

Strict Quality Control: 100% tested for torque, hardness, thread precision, and corrosion resistance.

Flexible Packaging: Standard bulk packaging or customer-specific branded boxes and packing.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceR&D CapabilitiesODM Services

Ningbo Mianxuan Import &Export Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2014-07-01Nearest Port: Ningbo, Zhapu, ShanghaiAverage Response Time: ≤3.32hTerms of Payment: LC, T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF

AI-Powered supplier vetting

SummaryNingbo Mianxuan Import & Export Co., Ltd. is identified as a China-based manufacturer/factory in Zhejiang, offering vehicle parts, CNC machining parts, metal stamping, castings, fasteners, and related products. It reports TS 16949 and ISO 9001 certifications, more than 10 production lines, 6–10 quality-control staff, and shipment inspection reports with material certificates. The supplier provides 3D software design, ODM, and several customization options, but reports no new products in the past year, no SDK, and no OEM service for popular brands. Service infrastructure is limited: no in-stock capability, overseas warehouse, or overseas showroom, while service assessment, complaint handling, and corrective-action procedures lack written records. Financial information is limited to year labels without substantive performance values. No customer cases are provided.

Supplier typeThe supplier is explicitly classified as a Manufacturer/Factory and a limited company based in Ningbo, Zhejiang, China. Its stated product scope covers vehicle parts, CNC machining parts, metal stamping, castings, fasteners, plastic parts, and rubber parts, supporting classification as a diversified manufacturing supplier.

CertificationsThe supplier reports holding TS 16949 and ISO 9001 management-system certifications. It also states that each shipment will include an inspection report with a corresponding material certificate, indicating documented quality-related deliverables.

After-Sales capabilityThe supplier reports no in-stock service capability, overseas warehouse, or overseas showroom. It also has no written procedures or records for service assessment, complaint handling, or corrective and preventive actions, while contract status for manufacturing capacity is unknown.

Production capacityThe supplier operates more than 10 production lines, has 6–10 quality-control staff, and offers a broad metal, machining, casting, plastic, rubber, and vehicle-parts scope. It lists Ningbo and Shanghai ports, 21 qualified suppliers for service capability, and a one-month off-season lead time; peak-season lead-time data is inconsistently stated, limiting a complete capacity assessment.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, and minor customization, in addition to ODM services. These options directly support customized product development, although no evidence is provided for SDK-based development or OEM service for popular brands.

Product Q&A

Q:What thread standards do you follow?

Our screws comply with DIN, ISO, ANSI, and JIS standards, and can also be customized according to customer drawings.

Q:What types of nuts do you manufacture?

We supply a full range of nuts including hex nuts, flange nuts, lock nuts, nylon-insert nuts, square nuts, cap nuts, weld nuts, T-nuts, wing nuts, and non-standard custom nuts.

Q:Do you provide samples before mass production?

Yes, we offer free or low-cost samples for quality and dimension confirmation prior to order.

Q:How do you control product quality?

Every batch is tested for torque, hardness, thread precision, and salt spray corrosion resistance, following ISO 9001 quality system standards.

Q:Do you offer OEM or customized production?

Yes. We can produce screws according to samples, technical drawings, or specific drive/head combinations, and offer custom packaging and labeling.