What materials are available for these screws?

Materials include stainless steel (SS304, SS316, SS2205, SS2507), alloy steel, and carbon steel.

What is the lead time for non-standard items?

Non-standard items take 12-18 working days, based on the quantity.

Free samples are provided for standard fasteners when in stock, but the customer must pay the freight cost.

DIN912 Hex Socket Head Hollow Vacuum Vented Screw

Name: DIN912 Hex Socket Head Hollow Vacuum Vented Screw
Brand: SHANGHAI TENGRI METAL PRODUCTS CO., LTD.
SKU: 2037074405

Shanghai, ChinaSHANGHAI TENGRI METAL PRODUCTS CO., LTD.

US$0.02

1,000 Pieces

Product specifications

Diameter

Length

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Type

Round Head

Model NO.

DIN912

Groove

Hexagon

Connection

Common Bolt

Head Style

Round

Standard

DIN

Grade

A2-70 A4-70

Product Name

DIN912 Screws

Drawing

Sample

Free Sample When Is in Stock

Thread

Unc, Unf

Service

Custom-Made Service

Color

Silver White

Delivery Time

Base on The Quantity

Size Standard

Metric/Inch

Price

Base on The Size, Material, Quantity

Payment Term

EXW, Fob, CIF, etc

Quality

100% After Inspection

Non-Standard Sample Time

7 -10 Days

Material Test Certificate

Have

Go-No Go Gauges Test

Yes

Transport Package

Plastic Bags and Cartons

Specification

M3-M30

Trademark

Tengri

Origin

China

HS Code

7318160000

Production Capacity

3000000 Pieces/ Month

Key features

Customizable Vented Diameter: The vented diameter (d) is fully customizable to meet specific project requirements.

Premium Material Options: Available in SS304, SS316, SS2205, SS2507, alloy steel, and carbon steel.

ISO 9001 Certified Quality: Passed ISO9001:2015, CQM, and IQNet certifications with 100% inspection.

Free Sample Service: Free samples provided for standard fasteners when in stock (buyer pays freight).

OEM/ODM Support: Accepts custom drawings and offers custom-made service for non-standard sizes.

Fast Delivery for Standard Sizes: Standard sizes in stock with a lead time of 5-7 working days.

Multiple Surface Treatments: Options include plain, black oxide, zinc plated, Darcomet, Geomet, and Zi-Ni.

Flexible Payment Terms: Supports T/T, PayPal, L/C, Western Union, and other convenient methods.

Company profile

Years of Export ExperienceFlexible CustomizationQuality AssuranceManagement Certification

SHANGHAI TENGRI METAL PRODUCTS CO., LTD.

Shanghai, China

Business Type: Manufacturer/Factory, Trading Company, Group CorporationExport Year: 2016-11-16Nearest Port: ShanghaiAverage Response Time: ≤1.05hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CIF, DDP, Others

AI-Powered supplier vetting

SummaryShanghai Tengri Metal Products Co., Ltd. is identified as the manufacturer of stainless-steel flat head nuts in M5 and M8 specifications. The supplier has documented corrective-action and complaint-handling procedures, quality assurance, inventory capability, written service-assessment procedures, and ERP-based operational management. It holds ISO9001:2015 and RoHS-related evidence and has conducted fire drills. Its service network is limited: it reports no overseas warehouses, showrooms, agents, or branches, and lists zero countries for overseas services. The supplier supports multiple customization modes and reported new products during the past year, but does not provide 3D software design, ODM, SDK, or recognized-brand OEM services. Manufacturing-contract status, detailed capacity, and customer case evidence remain insufficient for a definitive assessment.

Supplier typeThe supplier is identified as SHANGHAI TENGRI METAL PRODUCTS CO., LTD and is named as the manufacturer of stainless-steel flat head nuts in M5 and M8 specifications. This supports classification as a product manufacturer rather than only a trading or service intermediary.

CertificationsThe supplier reports an ISO9001:2015 certificate and RoHS product-certification capability. These are explicit certification-related credentials, although the slices do not provide certificate scope, validity dates, or issuing-body details.

After-Sales capabilityThe supplier has documented corrective/preventive-action and customer-complaint procedures with follow-up records, plus inventory capability and written service-assessment procedures. However, it reports no overseas warehouses, showrooms, agents, or branches, and lists zero countries for overseas services, limiting its overseas after-sales reach.

R&D capabilityThe supplier reports new products during the past year and uses ERP for digital management of production, procurement, quality control, and logistics. Its innovation-related offering is limited by the absence of 3D software design services, ODM services, and an available SDK.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. It does not provide 3D software design services or ODM services, indicating customization capability without evidence of complete design-development support.