Heavy Duty ISO 4017 Carbon Steel Fully Threaded Hex Bolt and Nut Kit with Flat Spring Washers for Construction

Name: Heavy Duty ISO 4017 Carbon Steel Fully Threaded Hex Bolt and Nut Kit with Flat Spring Washers for Construction
Brand: Ningbo Mianxuan Import &Export Co., Ltd.
SKU: 2310052815

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

US$1.20

8,000-29,999 Pieces

US$0.08

30,000-99,999 Pieces

US$0.01

100,000+ Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

ISO 4017

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS

Grade

8.8

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Blue-White Zinc Plated

Product Name

Carbon Steel Zinc Plated Hex Bolt

Quality

100% Tested

Head

Hexagonal

Sample

Available

Service

One-Stop Service

Customized

Available

OEM/ODM

Available

Thread Coverage

Full Thread

Shipment

by Sea / Truck / Plane / Express

Package

Standard Package or Customer's Packing

Delivery

15-30 Days

Online Sales

24 Hours Online

Price

Factory Price

Box

Customer's Brand Box/Plain Box

MOQ

Can Be Negotiated

Transport Package

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

Specification

M5-M30

Trademark

Mianxuan, Customized

Origin

Ningbo Zhejiang

HS Code

8501109101

Production Capacity

1000tons Per Month

Key features

The hex bolt nut washer assembly provides a complete fastening solution including bolt, nut, flat washer, and spring washer, helping simplify sourcing and improve installation efficiency.

Manufactured from carbon steel with zinc plated finish, the DIN 933 hex bolt and nut set offers reliable mechanical strength and general corrosion resistance for industrial fastening applications.

The Grade 8.8 high strength bolt assembly is suitable for applications requiring stable clamping force and dependable load performance, including machinery, equipment, and steel structures.

The combination of flat washer and spring lock washer helps distribute tightening pressure and improves connection stability in environments subject to vibration.

As an OEM metric bolt nut washer kit manufacturer, we support customized sizes, bolt lengths, thread specifications, property classes, surface finishes, markings, and export packaging.

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: ≤4.98hTerms 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 offering vehicle parts, CNC machining, stamping, casting, die-casting, fasteners, plastic, and rubber 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-management documentation is weak: no written procedures or records are reported for assessments, corrective actions, or complaint handling. It has no in-stock capability, overseas warehouse, or overseas showroom. Financial records are indicated for 2023–2025, but their results are not provided, so financial credibility cannot be determined. No customer cases are supplied.

Supplier typeThe supplier is explicitly identified as a manufacturer/factory and limited company in Ningbo, Zhejiang, China. Its stated scope covers fasteners, metal products, machinery, vehicle parts, CNC machining, stamping, casting, die-casting, plastic, and rubber parts, indicating broad manufacturing and industrial-product coverage.

CertificationsThe supplier reports holding TS 16949 and ISO 9001 management-system certifications. It also states that each shipment will include an effective inspection report and corresponding material certificate, providing explicit evidence of documented quality-related controls.

After-Sales capabilityThe supplier reports no written procedures or records for service-capability assessment, corrective and preventive actions, or effective customer-complaint handling. It also lacks in-stock service, overseas warehouse, and overseas showroom capabilities, indicating a documented weakness in after-sales and service infrastructure.

Production capacityThe supplier reports more than 10 production lines, 6–10 quality-control staff, and a product range spanning vehicle parts, CNC machining, stamping, casting, die-casting, fasteners, plastic, and rubber parts. It is located near Ningbo and Shanghai ports and reports 21 qualified suppliers, but has no inventory capability and peak-season lead-time data is inconsistent or unclear.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, 3D software design services, and ODM services. These statements provide direct evidence of broad product and design customization capability.

Product Q&A

Q:What components are included in this bolt nut washer set?

This hex bolt and nut kit typically includes a hex bolt, hex nut, flat washer, and spring washer. Component combinations can be customized according to customer requirements.

Q:What is the difference between Grade 8.8 and other bolt grades?

A Grade 8.8 carbon steel bolt provides higher tensile strength and yield strength than lower grades such as 4.8 or 5.8, making it suitable for heavier-duty fastening applications.

Q:Can the bolt length and thread type be customized?

Yes. Metric hex bolt assemblies can be supplied with different lengths, thread pitches, fully threaded or partially threaded designs according to application requirements.

Q:Where are zinc plated bolt nut washer assemblies commonly used?

The zinc plated fastener kit is widely used in machinery assembly, automotive components, construction equipment, steel structures, and general industrial installations.

Q:Can you supply different standards besides DIN 933?

Yes. Hex bolt nut washer sets can be manufactured according to DIN, ISO, GB, ANSI/ASME, or customer drawings, depending on required dimensions and specifications.