Do you provide OEM and ODM services?

Yes, OEM and ODM services are welcomed. You can send your drawings or samples for customization.

What is the range of sizes available?

We supply fasteners with shank diameters from M1.2 to M30 and overall lengths from 6mm to 120mm.

How do you ensure product quality?

We perform 100% visual and functional inspections using automatic optic sorters and conduct hardness, tensile, and salt spray tests.

Round Head Hex Socket Cap Screws with Flange Screw/Custom Black Class4.8 10.9 Machine Screw

Name: Round Head Hex Socket Cap Screws with Flange Screw/Custom Black Class4.8 10.9 Machine Screw
Brand: Shanghai Kinsom Precision Hardware Co., Ltd.
SKU: 843554695

Shanghai, ChinaShanghai Kinsom Precision Hardware Co., Ltd.

US$0.01-1.00

10,000 Pieces

Sample price:US$80.00/bag.Request sample

Product profile

Customization

Available

Material

High Strength Steel

Type

Round Head

Groove

Hexagon

Connection

Common Bolt

Head Style

Round

Standard

Non Standard

Grade

8.8

Transport Package

Standard Packing

Specification

M2-M30

Trademark

Customm label

Origin

Shanghai China

HS Code

7318150000

Production Capacity

5000-100000PCS/Day

Key features

Full Customization Support: Customize size, finish, material, and details based on customer drawings or samples.

Wide Material Selection: Available in Stainless Steel 304/316, Carbon Steel, Aluminum, Brass, and Titanium alloys.

Strict Quality Certification: ISO9001, IATF16949 certified with SGS, RoHS, ELV, and PPAP Level III compliance.

Comprehensive Testing Lab: 100% optical sorting inspection plus hardness, tensile, and salt spray tests.

Trusted Industry Supplier: Serving automotive giants like Geely, GM, and BYD with over 20 years experience.

Flexible OEM/ODM Service: Accepts custom designs and samples for precision metal parts and cold forged fasteners.

Competitive Delivery Terms: Fast sample delivery in 10-15 days and mass production in 15-20 days after payment.

Broad Size Range: Shank diameters from M1.2 to M30 and lengths from 6mm to 120mm available.

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.