What certifications does the factory have?

The factory is certified with ISO 9001:2015 and IATF 16949:2016, and products pass SGS, ELV, and RoHS tests.

What is the minimum order quantity?

Specific MOQ details are not listed, but we support flexible customization and small batch orders via OEM.

How is the quality controlled?

We perform 100% inspection including visual, functional, hardness, salt spray, and dimension tests using calibrated tools.

Square Head Machine Bolt with Blue White Zinc Coating Customized M3 M4 M5 Fasteners

Name: Square Head Machine Bolt with Blue White Zinc Coating Customized M3 M4 M5 Fasteners
Brand: Shanghai Kinsom Precision Hardware Co., Ltd.
SKU: 886159535

Shanghai, ChinaShanghai Kinsom Precision Hardware Co., Ltd.

US$0.01-1.00

50,000 Pieces

Sample price:US$60.00/bag.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Square Head

Connection

Common Bolt

Head Style

Square

Standard

DIN, ANSI, GB, JIS

Grade

8.8

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Blue-White Zinc Plated

Transport Package

Standard

Specification

M3 M6 M8

Trademark

kinsom fasteners

Key features

Customizable Specifications: Size, material, and finish can be customized to specific needs.

OEM/ODM Service: OEM and ODM services are welcomed with drawing support.

Wide Material Range: Available in stainless steel, carbon steel, alloy steel, brass, and titanium.

High Quality Standards: Certified ISO 9001:2015 and IATF 16949:2016 factory.

Strict Quality Control: 100% inspection including hardness, salt spray, and dimension tests.

Experienced Manufacturer: Over 20 years of experience in forging and machining processes.

Versatile Applications: Suitable for machinery, construction, automotive, and electronics.

Flexible Packaging: Standard 25kg/carton or palletized packaging per customer request.

Company profile

Quality Assurance100% Finished Products InspectionQA/QC InspectorsFull Customization

Shanghai Kinsom Precision Hardware Co., Ltd.

Shanghai, China

Business Type: Manufacturer/Factory, Trading Company, Group Corporation CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2014-02-18 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤24h

AI-Powered supplier vetting

SummaryThe supplier is a manufacturing-oriented fastener and precision-machining supplier rather than a professional technical or 3D software design provider. It offers broad customization, including sample-based, design-based, full, minor, and flexible customization, and operates more than 10 production lines with multiple machining and forming machines. Finished-product inspection instructions are uniformly followed, with quality assurance and raw-material traceability identified. However, the supplier has no written procedures or records for supplier-service assessment, corrective and preventive actions, or customer complaint handling. It has no overseas agents, branches, warehouse, showroom, or offline trade-show participation. Financial records are indicated for 2022–2024, but no assessable financial results are provided. Innovation evidence is limited: no new products were reported in the past year, although ODM services are available. No certification or customer-case evidence is provided.

After-Sales capabilityThe supplier has in-stock service capacity and states that quality assurance and raw-material traceability are in place. However, it has no written procedures or records for corrective and preventive actions or effective customer-complaint handling, and it has no overseas agents, branches, warehouse, or showroom, limiting documented after-sales support infrastructure.

R&D capabilityThe supplier reports no new products during the past year, no SDK availability, and no professional technical-supplier or 3D software-design capability. It does provide ODM services and has one year of total R&D engineer experience reported, but the overall evidence does not demonstrate strong ongoing innovation capacity.

Production capacityThe supplier operates more than 10 production lines and lists diverse forming, machining, drilling, grinding, and cutting equipment for nails, screws, bolts, and CNC parts. It reports in-stock capacity, one-month average lead times in both peak and off-season periods, uniformly followed finished-product inspection instructions, and 11 years of export experience. However, it lacks a valid manufacturing-capacity contract with associated subcontractors, so the evidence supports substantial production capability but not fully controlled outsourced capacity.

Customization capabilityThe supplier explicitly offers customization from samples, customization from customer designs, full customization, minor customization, and flexible customization. ODM service is also available, providing direct evidence of broad product customization capability despite the absence of 3D software design services.