OEM Carbon Steel Hexagon Head Bolt for Construction Hardware

Name: OEM Carbon Steel Hexagon Head Bolt for Construction Hardware
Brand: Qingdao Zhengrong Precision Machinery Co., Ltd.
SKU: 800581182

Shandong, ChinaQingdao Zhengrong Precision Machinery Co., Ltd.

US$5.00

1 Piece

Sample price:US$5.00/piece.Request sample

Product profile

Customization

Available

Application

Fastener, Auto and Motorcycle Accessory, Hardware Tool, Machinery Accessory

Standard

Model NO.

45# steel 23

Surface Treatment

Polishing

Production Type

Mass Production

Machining Method

CNC Machining

Material

Nylon, Steel, Plastic, Brass, Alloy, Copper, Aluminum, Iron, PMMA

Condition

New

Certification

ISO9001

Customized

After-Sales Service

Online Service

Warranty

One Year

Tolerance

1 Micrometre / +-0.001mm

HRC

Above 60 After Heat Treatment

Quality Control

100% Inspection CMM Optional

Features

Precise, Small, Special, Complex

Process

CNC Turning, Milling, EDM, Grinding, Laser Cutting

Machining

High Precision CNC Machined Part

Classification

Shaft/Bearing/Housing/Fastener/Gear/Pin/Bracket

Transport Package

Carton

Specification

Steel SKS3

Trademark

Origin

Shandong, China

Key features

High Precision Machining: Guarantees tolerances down to +/- 0.001mm (1 micron) for exceptional accuracy.

Comprehensive Material Options: Machining capabilities for metals (steel, aluminum, copper), alloys, plastics, and nylon.

Wide Range of Processes: Includes CNC turning, milling, EDM, grinding, laser cutting, and wire cutting.

Customized Service Available: Offers full customization, minor customization, and flexible customization from samples or designs.

ISO9001 Certified Quality: Adheres to stringent ISO9000 standards with 100% inspection and CMM testing.

Fast Sample Turnaround: Sample orders completed within approximately 7 days for verification.

Flexible Production Lead Time: Typical production completed within 7-30 days depending on project complexity.

One Year Warranty: Provides a one-year warranty period for all manufactured parts.

Company profile

Exhibition ExperienceFast DeliveryQuality AssuranceR&D Capabilities

Qingdao Zhengrong Precision 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: 10 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤1.34h

AI-Powered supplier vetting

SummaryThe supplier manufactures mechanical parts, electronic parts, industrial automatic-control devices, and mechanical equipment, with CNC machining and aluminum-part production listed at 100,000 pieces annually per category. It supports sample-based, design-based, full, minor, and flexible customization, and reports new products within the past year and ODM services. The supplier has provided OEM services to well-known brands and exports to multiple regions, with 10 years of export experience and 51%–70% of sales from exports. However, after-sales procedures, complaint handling, and corrective/preventive-action records are not documented. Finished products are checked by packing staff, and there is no valid manufacturing-capacity contract with related subcontractors. Financial records are referenced for 2020–2022, but their adequacy cannot be assessed from the provided information. Certification holdings, specific customer cases, and formal sustainability documentation are not sufficiently evidenced.

Supplier typeThe supplier’s stated business scope covers manufacturing of mechanical parts, electronic parts, industrial automatic-control system devices, and mechanical equipment, together with import and export activities subject to applicable approvals. This identifies it as a manufacturing supplier with international trade capability.

After-Sales capabilityThe supplier has no written procedures or records for corrective and preventive actions or customer complaint handling. It has inventory capability and has attended a machinery-parts exhibition, but it reports no overseas warehouse, overseas showroom, overseas agent or branch, and no overseas service countries; finished products are checked by packing staff.

R&D capabilityThe supplier reports new products within the past year, offers ODM services, and provides several design and customization services. It does not have an available SDK, but the available evidence supports product-development and design capability for physical products.

Production capacityThe supplier lists annual output of 100,000 pieces for each of several CNC and precision-machining categories and reports in-stock capability. However, it has no valid contract with related subcontractors, so capacity coordination and subcontracting arrangements are not fully documented.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. These capabilities are stated consistently across its R&D and production information.

Product Q&A

Q:What kind of parts do you specialize in machining?

We excel at producing precise, small, special, and complex parts. Our expertise lies in creating intricate components that require tight tolerances and unique functionalities.

Q:What processing technologies do you offer?

We possess a comprehensive suite of CNC machining capabilities, including 3-4 axis CNC machining, turning, milling, centerless grinding, surface grinding, cylindrical grinding, EDM (Electrical Discharge Machining), wire cutting, and laser cutting. This extensive range allows us to tackle a wide variety of projects with the most appropriate technique.

Q:What tolerances can you guarantee?

We hold ourselves to the highest precision standards, guaranteeing tolerances down to +/- 0.001mm (1 micron or 1 micrometer). This ensures exceptional accuracy and functionality for your parts.

Q:What is the typical lead time for production?

Our lead times are flexible and depend on the complexity of your project. Typically, we can complete production within 7-30 days.