Is OEM service available?

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

What payment terms do you accept?

We accept LC (Letter of Credit) and T/T (Telegraphic Transfer).

How do you ensure product quality?

We perform 100% inspection (visual and function) using professional inspection machines and have strict QA/QC processes.

Stainless Steel 304 Socket Countersunk Hex Flat Head Screw DIN7991 /Custom Machine Screw

Name: Stainless Steel 304 Socket Countersunk Hex Flat Head Screw DIN7991 /Custom Machine Screw
Brand: Shanghai Kinsom Precision Hardware Co., Ltd.
SKU: 934733915

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

Stainless Steel

Type

Countersunk Head

Groove

Cross

Connection

Common Bolt

Head Style

Counter Sunk Bolt

Standard

DIN

Grade

8.8

Transport Package

Standard Packaging

Specification

M4*20

Trademark

custom label

Origin

Shanghai China

Production Capacity

1000000PCS/Week

Key features

Custom Packaging & Branding: Custom labels, logos, and neutral packaging available for reselling and tracking.

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

Flexible Customization: Customizable shank diameter (M1.7-M30), length, head type, and surface treatment.

High Strength Fasteners: Hardness grades range from 4.8 to 12.9 for various industrial applications.

Robust Shipping Protection: Strong carton box and pallet packaging ensures goods safety during transit.

OEM/ODM Service: Full customization from samples or designs with professional cold forging.

Strict Quality Control: 100% visual and function inspection with professional testing machines.

Versatile Applications: Suitable for fixing parts, material transmission, and large drill bit applications.

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.

Product Q&A

Q:What materials are available for these screws?

We offer Stainless Steel 304/316, Carbon Steel 45#/22A/10B21, Alloy Steel, Aluminum 5052/6063, Brass, and Titanium/Ti Alloy.

Q:Can I customize the packaging and labels?

Yes, we provide custom labels, logos on boxes, neutral packaging, and specific paperwork like invoices and packing lists with your details.

Q:What is the range for shank diameter and length?

Shank diameter ranges from M1.7 to M30, and overall length ranges from 6mm to 120mm, both customizable to your needs.

Q:What surface treatments are offered?

Options include Zinc, Nickel, Gold, Brass, Black/Black Oxide, Sandblasting, and Plain with Oil/No finish.

Q:What is the lead time for orders?

The average lead time is one month for both peak season and off-season.

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Stainless Steel 304 Socket Countersunk Hex Flat Head Screw DIN7991 /Custom Machine Screw