What is the delivery time?

Sample order: 1-3 days after receipt of the full payment. Stock order: 3-7days after receipt of the full payment. OEM order: 15-35 days after receipt of the deposit.

Stainless Steel Investment Casting Bolt Joint High Precision Auto Fastener Components

Name: Stainless Steel Investment Casting Bolt Joint High Precision Auto Fastener Components
Brand: Qingdao Donrex Co., Ltd.
SKU: 2151025782

Shandong, ChinaQingdao Donrex Co., Ltd.

US$0.10-1.00

500 Pieces

Product profile

Customization

Available

Casting Method

Directional Crystallization

Application

Hardware

Surface Roughness

Ra12.5

Standard

OEM

Certification

ISO 9001:2008, TF16949

Transport Package

Bulk Packing

Specification

Customized specs

Trademark

OEM

Origin

Shandong

HS Code

73249000

Production Capacity

500000sets/Month

Key features

High Precision Casting: Silica Sol process ensures close dimensional tolerances and excellent surface finish for complex parts.

Wide Weight Range: Capable of casting parts from a few grams up to 120kg using Silica Sol or Water Glass processes.

Extensive Material Options: Supports Stainless Steel, Carbon Steel, Heat-resistant Steel, High Manganese, Tool Steel, and Copper Alloys.

Comprehensive Surface Treatment: Offers electroplating, chrome/zinc/nickel plating, polishing, sandblasting, powder coating, and more.

Strict Quality Assurance: 100% inspection on critical dimensions and appearance; ISO9001 and TS16949 certified.

Custom Secondary Operations: Provides heat treatment, machining, plating, painting, polishing, assembly, and custom packaging.

Advanced Testing Facilities: Equipped with CMM, salt spray test, dynamic balance detector, and mechanical properties testers.

High Performance Features: High strength, low deformation, good conductivity, smooth surface (Ra1.6), and excellent corrosion resistance.

Company profile

Full CustomizationR&D CapabilitiesODM ServicesManagement Certification

Qingdao Donrex Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 18 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤10.26h

AI-Powered supplier vetting

SummaryThe supplier offers broad customization, exports approximately 90% of sales, has exported for 18 years, and reports standardized finished-product inspection instructions. It holds CE and ISO9001:2015 certifications and has seven R&D engineers, but launched no new products last year and is explicitly not classified as a professional technical supplier or a provider of 3D software design. The supplier lacks stated inventory, overseas warehouse, overseas showroom, overseas agents or branches, and offline trade-show participation. Manufacturing capacity is constrained by the absence of a valid contract with related subcontractors. Customer evidence is limited: there is no cooperation with Fortune 500 companies, while repeat-buyer preference is reported at 50%–80%. Financial credibility cannot be assessed because no relevant financial information is provided.

CertificationsThe supplier reports CE product compliance certification and an ISO9001:2015 management-system certificate. These are explicit certifications supporting compliance and quality-management capability.

After-Sales capabilityThe supplier reports no overseas warehouse, overseas showroom, overseas agents or branches, and no overseas service countries. It does provide several quotation and payment options, but the stated international service infrastructure is limited.

R&D capabilityThe supplier has seven R&D engineers and offers multiple forms of customization, but it is not a professional technical supplier, does not provide 3D software design services, and launched no new products in the past year. The evidence shows customization capacity but weak recent product-innovation evidence.

Production capacityThe supplier has written and uniformly followed finished-product inspection instructions, reports one-month average lead times in both peak and off-season periods, and identifies 40 qualified suppliers for service capability. However, it has no inventory capability and no valid manufacturing-capacity contract with related subcontractors, creating an explicit production-structure deficiency.

Customization capabilityThe supplier explicitly provides customization from designs, customization from samples, full customization, minor customization, and flexible customization. This is direct evidence of a broad range of customization services.

Product Q&A

Q:Are you a factory or trading company?

We are a factory located in Qingdao city. It will take one hour to airport. Welcome all our clients come to visit us.

Q:What equipments do you have?

Our factory owns a full set of machining and inspecting equipments, including large CNC machining center, sodick EDM, CNC engraving machine, laser cutting machine, bending machine, laser welder, radial drilling machine, milling machine, CMM, etc.

Q:How does your factory do regarding quality control?

We test product quality from the very beginning to the very end. Our QC measure and check all the moulds and final products with CMM or other inspection tools regularly.

Q:Can you produce according to the samples or the technical drawing?

We have professional engineers who can well study samples and drawings. So we surely can produce according to your samples and technical drawings.

Q:How to order?

Step 1, please tell us what model and quantity you need; Step 2, then we will make a PI for you to confirm the order details; Step 3, when we confirmed everything, you can arrange the payment; Step 4, finally we deliver the goods within the stipulated time.