What standards do your bolts comply with?

Our products comply with GB, DIN, ISO, ANSI/ASTM, BS, BSW, and other international standards.

How is the product packaged for shipping?

We use foam bags, cartons, or wooden cases to ensure safe and secure transportation.

What surface treatments are available?

We provide plain finish and passivation treatments for stainless steel bolts.

DIN 7991 Hex Socket Flat Head Machine Screw 304 Stainless Steel Countersunk Bolt M5 X 20 Plain Finish

Name: DIN 7991 Hex Socket Flat Head Machine Screw 304 Stainless Steel Countersunk Bolt M5 X 20 Plain Finish
Brand: Shenzhen Shuntian Hardware Product Co., Ltd.
SKU: 2192934472

Guangdong, ChinaShenzhen Shuntian Hardware Product Co., Ltd.

US$1.00

1,000-9,999 Pieces

US$0.10

10,000-99,999 Pieces

US$0.01

100,000+ Pieces

Product profile

Customization

Available

Material

Carbon Steel Stainless Steel Alloy Steel

Type

Countersunk Head

Model NO.

DIN7991

Groove

Hexagon

Connection

Common Bolt

Head Style

Counter Sunk Bolt

Grade

4.8/5.6/8.8/10.9

Minimumorder (MOQ)

According to Customer Demand

Non-Standards

OEM Is Available, According to Drawing or Samples

Transport Package

Foam Bags / Cartons / Wooden Cases

Specification

#8-3/8", M2.7-M31

Origin

China

Key features

Comprehensive Standards Compliance: Meets ASME/ANSI, DIN, GB, and ISO standards for global applicability.

Wide Material Selection: Available in Carbon Steel, Alloy Steel, Stainless Steel, Brass, and Aluminium.

Diverse Surface Finishes: Offers Plain, Black Oxide, Zinc Plated, H.D.G, Nickel, Chrome, and PTFE.

Fast Delivery: Standard parts delivered in 7-15 days; non-standard parts in 15-25 days.

High Precision Capability: Capable of strictly following drawing tolerances for high precision parts.

Free Samples: Samples provided free of charge for evaluation and testing purposes.

Company profile

High Repeat Buyers ChoiceManagement CertificationODM ServicesOEM Services

Shenzhen Shuntian Hardware Product Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 16yeas in Domestic market CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤0.04h

AI-Powered supplier vetting

SummaryShenzhen Shuntian Hardware Product Co., Ltd. is identified as a Chinese manufacturer established in 2009, operating in Shenzhen, Guangdong, with 24 employees and a 1,505 m² manufacturing plant. Its products include fasteners such as hexagon head bolts, bolts and nuts, as well as hand tools and precision CNC-machined parts. Export sales account for 51%–70% of total sales, indicating meaningful international business exposure. An SGS audit record is shown as valid from August 29, 2025 to August 28, 2026, but the audit type and evaluation result are coded and cannot be interpreted. The supplier’s description explicitly claims ODM and OEM support, while evidence is insufficient for after-sales services, financial credibility, customer cases, environmental compliance, overseas infrastructure, and several operational capabilities.

Supplier typeThe supplier is explicitly classified as a manufacturer and factory in Shenzhen, Guangdong, China. Its stated business covers industrial equipment and components, tools and hardware, including fasteners, hand tools, and CNC-machined parts.

R&D capabilityThe supplier explicitly states that it supports ODM and OEM projects and has an engineering team working from concepts, samples, and blueprints to production. Separate evidence for SDK availability, digitalization, ERP integration, or broader R&D systems is unavailable.

Production capacityThe supplier is a manufacturer with a 1,505 m² plant, 24 employees, and products including bolts, nuts, fasteners, hand tools, and CNC-machined parts. Export sales of 51%–70% and an active-looking SGS audit record support operational experience, but manufacturing capacity, inventory capability, and order fulfillment details are not sufficiently defined.

Customization capabilityThe supplier explicitly claims full customization support through ODM and OEM services, with engineering cooperation based on customer specifications, samples, and blueprints. This directly supports the existence of customization capability, although the scope and technical limits are not stated.

Product Q&A

Q:What materials are available for this bolt?

We offer 304, 316, and 316L stainless steel options to suit different environmental requirements.

Q:What is the thread diameter and length range?

Thread diameter ranges from M3 to M100 (1/4-4'), and thread length from 3mm to 450mm (3/8 - 9-1/2').

Q:Can I order custom sizes or non-standard bolts?

Yes, OEM is available according to drawings or samples, and custom sizes are available upon request.

Q:What is the minimum order quantity (MOQ)?

The MOQ is flexible and determined according to customer demand.

Q:What is the typical delivery time?

The standard delivery time is 3-7 days for most orders.

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DIN 7991 Hex Socket Flat Head Machine Screw 304 Stainless Steel Countersunk Bolt M5 X 20 Plain Finish