What are the payment terms?

We accept LC, T/T, D/P, PayPal, Western Union, and Small-amount payment.

What is the lead time for production?

The average lead time is within 15 workdays for both peak and off-season periods.

Do you support OEM or ODM services?

Yes, we provide OEM and ODM services with flexible customization options.

DIN912 Hex Socket Head Hollow Vacuum Vented Screw with Customized Hole

Name: DIN912 Hex Socket Head Hollow Vacuum Vented Screw with Customized Hole
Brand: Qingdao Pengrui Machinery Co., Ltd.
SKU: 1934136925

Shandong, ChinaQingdao Pengrui Machinery Co., Ltd.

US$0.05-0.50

1,000 Pieces

Sample price:US$5.00/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Type

Cap Head

Groove

Socket

Connection

Common Bolt

Head Style

Round

Standard

DIN, GB, ANSI, JIS

Grade

4.8/8.8/10.9/12.9/5/8

Transport Package

Plastic Bag+Carton

Specification

M2-M24

Trademark

PDM

Origin

China

Production Capacity

200000/Month

Key features

Customized Hole Design: Features a through hole for air venting in vacuum equipment applications.

Multiple Material Options: Available in Carbon Steel, Stainless Steel, Aluminium, and Brass.

Wide Size Range: Sizes from 3mm to 80mm, customizable according to client requirements.

Various Grade Options: Grades include 4.8, 6.8, 8.8, 12.9, and others as needed.

Customizable Finish: Options include Plain, Zinc Plated, Black Oxide, H.D.G, and more.

OEM/ODM Service: Supports flexible customization, minor/full customization, and design-based orders.

Multiple Standard Compliance: Meets ISO, JIS, GB, ANSI, BSW, DIN standards or non-standard specs.

Secure Packaging: Packed in plastic bags inside standard cartons with pallets for protection.

Company profile

Importers and ExportersYears of Export ExperienceHigh Repeat Buyers Choice

Qingdao Pengrui Machinery Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 14 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤18h

AI-Powered supplier vetting

SummaryThe supplier presents established manufacturing and export capabilities, with ISO9001:2015 certification, two production lines, 6–10 quality-control staff, and stated contracts with affiliated subcontractors. It supports flexible customization, ODM, OEM for popular brands, and reports new products in the past year. Export activity has continued for 11 years, with 51%–70% of sales from exports and self-operated import/export rights. Service strengths include inventory capability, documented complaint and corrective-action procedures, quality assurance, and lead times within 15 working days in both peak and off-season periods. However, the supplier has no overseas warehouse, showroom, agents, branches, or stated overseas-service countries, and has not participated in offline trade shows. Supplier-service assessment lacks written procedures and complete records. Financial credibility cannot be assessed from the non-monetary information provided.

Supplier typeThe supplier is identified as a combined company rather than an offshore company, and its profile covers manufacturing, export trade, service, quality control, R&D, and sustainability capabilities. This supports classification as an integrated manufacturing and trading-oriented supplier, although the exact legal business structure is not further specified.

CertificationsThe supplier holds an ISO9001:2015 certificate. This is explicit evidence of a recognized quality-management-system certification, although no additional certifications are stated.

After-Sales capabilityThe supplier has documented procedures and records for customer complaints and corrective/preventive actions, provides inventory capability, and reports lead times within 15 working days in both peak and off-season periods. However, it has no overseas warehouse, showroom, agents, branches, or stated overseas-service countries, while its supplier-service assessment process has no written procedures or followed records.

R&D capabilityThe supplier reports two years of total R&D-engineer experience, new products developed during the past year, ODM capability, customization from designs and samples, an available SDK, and one national science and technology progress award. These stated capabilities provide explicit evidence of active R&D and innovation support.

Production capacityThe supplier operates two production lines, has 6–10 quality-control staff, maintains valid manufacturing-capacity contracts with affiliated subcontractors, and reports 30 qualified suppliers for service capability. It also states inventory capability and lead times within 15 working days in both peak and off-season periods, indicating established operational capacity.

Customization capabilityThe supplier explicitly offers flexible, minor, and full customization, including customization from customer designs and samples, as well as ODM services and OEM for popular brands. These stated services demonstrate broad customization and contract-manufacturing capability.

Client casesThe supplier names long-term customers including Richelieu Hardware, Hillman Agroup, VIPA, CFI, and BUFAB. These named customer relationships provide explicit evidence of customer experience, although the information does not state order scope, duration for each account, or independently verified performance outcomes.

Product Q&A

Q:What is the primary function of this screw?

It is designed with a through hole to let out accumulated air, making it ideal for vacuum equipment.

Q:What materials are available for this screw?

We offer Carbon Steel, Stainless Steel, Aluminium, and Brass.

Q:Can the size and grade be customized?

Yes, sizes range from 3mm to 80mm and grades include 4.8, 6.8, 8.8, 12.9, etc., all customizable.

Q:What surface finishes are offered?

Options include Plain, Zinc Plated (Clear/Blue/Yellow/Black), Black Oxide, H.D.G, and DAC.

Q:What is the Minimum Order Quantity (MOQ)?

The MOQ is 100 Pieces.

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DIN912 Hex Socket Head Hollow Vacuum Vented Screw with Customized Hole