What advantages do you have?

1. Strict QC: Inspection before shipping. 2. Shipping: We have a shipping department and forwarder for faster delivery and protection. 3. Professional production of various metal fittings and fasteners.

What materials and standards do you support?

We support Carbon Steel with grades Gr.4.6 to 12.9. Standards include DIN, ANSI, JIS, EN, ISO, AS, GB, and GOST.

Can you customize the size and finish?

Yes, we offer customized sizes from M3 to M36 and finishes such as Zinc Plated, Black Oxide, Galvanized, and others according to customer requirements.

Customizable Carbon Steel Castle Nut Hex Castle Slotted Nut Cap Nut

Name: Customizable Carbon Steel Castle Nut Hex Castle Slotted Nut Cap Nut
Brand: Handan Haosheng Fastener Co., Ltd.
SKU: 2131086732

Hebei, ChinaHandan Haosheng Fastener Co., Ltd.

US$0.03

1,000-1,999 Pieces

US$0.01

2,000+ Pieces

Product specifications

m4-m30

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

Steel

Type

Carbon Steel Castle Nut

Model NO.

DIN

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, GOST, BSW

Grade

Gr.4.6,4.8,5.6,5.8,8.8,10.9,12.9

Finish

Zinc Plated, Black Oxide, Galvanized

Measurement System

Metric, Imperial (Inch)

Application

Heavy Industry, Mining, Retail Industry, General I

Color

Black

Packing

Export Pallet or According to Customer's Requireme

Sample

Avaliable

Delivery Time

5-15 Days

Size

M3-M36

Surface Treatment

Plain.Black.Zinc Plate. HDG

Transport Package

Carton

Specification

M3-M36

Trademark

Haosheng

Origin

China

HS Code

73181600

Production Capacity

6000ton/Month

Key features

Customizable Specifications: Available in Metric/Imperial sizes M3-M36 with various finishes like Zinc Plated and Black Oxide.

OEM/ODM Service: Professional manufacturer accepting OEM and ODM orders with competitive pricing and quality assurance.

Strict Quality Control: Professional QC team inspects every item from production to packaging, ensuring defect-free products.

Fast Delivery: Standard delivery time is 30-35 days after deposit; samples are available for quality testing.

Wide Material Range: Carbon steel grades from Gr.4.6 to 12.9, suitable for heavy industry, mining, and general applications.

Global Standards: Products comply with DIN, ANSI, JIS, GB, GOST, and BSW standards for international compatibility.

Secure Packaging: Export pallet packing or customized according to customer requirements to ensure safe shipping.

Experienced Manufacturer: 30 years of experience with a 20,000 sqm production base and advanced in-house testing equipment.

Company profile

Management CertificationImporters and ExportersHigh Repeat Buyers ChoiceYears of Export Experience

Handan Haosheng Fastener Co., Ltd.

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading CompanyExport Year: 2007-05-01Nearest Port: TIANJINAverage Response Time: ≤0.14hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FCA, FAS, DDP, DAP, CIP, CPT

AI-Powered supplier vetting

SummaryHandan Haosheng Fastener Co., Ltd. is a China-based combined business entity established in 2007, with 144 employees and a stated scope covering standard parts and power hardware processing and sales. The supplier demonstrates broad customization and ODM capabilities, reports new products within the past year, and provides OEM services for recognized brands. Production evidence includes bolt productivity of 60,000 tons and 10 quality inspectors, supported by inspection instructions and quality procedures. Service management procedures cover supplier assessment, corrective and preventive actions, and customer complaints. The supplier has inventory capability and accepts multiple trade and payment terms, but has no valid manufacturing-capacity contract with related subcontractors, no overseas warehouse, and no overseas showroom. Certification ownership, financial credibility, and specific customer cases are not sufficiently evidenced. Digitalization is underway, including ERP use and stated enterprise...

Supplier typeThe supplier is identified as a combined business entity and limited company operating in Handan, Hebei, China. Its stated business scope is the processing and sale of standard parts and power hardware, which is directly relevant to fastener supply.

After-Sales capabilityThe supplier has written and followed procedures for service-capability assessment, corrective and preventive actions, and customer complaints. It also reports inventory capability and multiple service quotation and payment terms, but lacks an overseas warehouse and showroom; overall after-sales capability is evidenced, although international physical service coverage is limited.

R&D capabilityThe supplier reports new products within the past year, provides ODM services, and has broad design-service capabilities. It also uses ERP for production, procurement, quality control, and logistics, while enterprise digital-process construction and big-data-related development are reported; however, no SDK is available.

Production capacityProduction evidence includes stated bolt productivity of 60,000 tons, 10 quality inspectors, thread rolling and cold heading equipment, and uniformly followed finished-product inspection instructions. Inventory capability and peak- and off-season lead-time statements support fulfillment capability, but the absence of a valid contract with related subcontractors is a documented capacity-management weakness.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. These capabilities are reported consistently across the R&D and design-service information, with ODM availability further supporting customized product development.

Client casesThe supplier states that it provides OEM services for recognized brands, which is evidence of brand-related customer experience. No customer names, project descriptions, order history, or independently verifiable case details are provided, so the depth of customer cases cannot be fully evaluated.

Product Q&A

Q:Are you a manufacturer or trading company?

We are a professional manufacturer with 30 years of experience. We accept OEM and ODM as per your needs and assure competitive prices and quality.

Q:Can you offer samples?

Yes, we can offer samples for you to test and check the quality before placing a large order.

Q:How does your factory handle quality control?

We have a professional QC team to inspect each item from the production links to packaging. Strict inspection is carried out by the QC department before shipping to avoid bad quality.

Q:What is your delivery time?

Normally it takes 30-35 days after receiving your deposit. For standard fasteners, the lead time is 30-60 days.

Q:What are your terms of payment?

T/T 30% as deposit, and 70% balance before delivery. We also accept LC, D/P, PayPal, etc.