What is the tolerance and precision level of your threads?

We use automated thread rolling with precision tooling. Thread tolerance typically meets 6g / 6H and can be customized for special fitting requirements.

Will stainless steel bolts rust over time?

Under severe chemical or chloride exposure, A2 may develop slight surface corrosion. A4/316 performs better in harsh environments. We also offer passivation treatment for enhanced protection.

Stainless Steel DIN 653 Flat Head Knurled Thumb Screw

Name: Stainless Steel DIN 653 Flat Head Knurled Thumb Screw
Brand: Ningbo Mianxuan Import &Export Co., Ltd.
SKU: 2052130915

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

US$0.10

5,000-19,999 Pieces

US$0.07

20,000-49,999 Pieces

US$0.04

50,000+ Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Type

Round Head

Model NO.

DIN 653

Connection

Common Bolt

Head Style

Round

Standard

DIN

Grade

8.8

Price

Factory Price

Quality

100% Tested

Service

One-Stop Service

Thread

Unc, Unf, Un, Metric Coarse, Fine

Surface

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

Lead Time

15-30 Days

Package

Standard Package or Customer's Packing

Box

Customer's Brand Box/Plain Box

MOQ

Can Be Negotiated

Shipment

by Sea / Truck / Plane / Express

Exterior Finish

Customized

Sample

Available

Customized

Available

Online Sales

24 Hours Online

OEM/ODM

Available

Transport Package

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

Specification

M1-M10

Trademark

Mianxuan, Customized

Origin

Ningbo, China

HS Code

73181500

Production Capacity

10000tons/Year

Key features

Customized Exterior Finish: Offers plain, zinc plated (blue, white, black, yellow), and other surface treatments.

Wide Material Selection: Available in Carbon Steel, Stainless Steel, Brass, and other materials.

OEM/ODM Service: Supports customized production based on samples, drawings, or specific requirements.

Strict Quality Control: Every batch tested for torque, hardness, thread precision, and salt spray resistance.

Flexible Packaging: Standard package or customer's brand box/plain box available.

Fast Lead Time: Typical lead time is 15-30 days, with off-season delivery within 15 workdays.

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

Global Shipment Options: Shipment available by sea, truck, plane, or express delivery.

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: ≤3.34hTerms 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 types of screws do you manufacture?

We produce a full range of industrial screws including self-tapping screws, self-drilling screws, machine screws, wood screws, drywall screws, concrete screws, and customized non-standard screws.

Q:What materials are available for your screws?

Our screws are available in carbon steel (C1022, C1018), stainless steel (A2/304, A4/316), hardened steel, alloy steel, and brass. Material selection depends on tensile strength and corrosion-resistance requirements.

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.