What is the manufacturing process for the threads?

The company uses cold form rolled threads by displacing material rather than removing it, which increases strength.

What are the terms of payment?

Terms of payment include LC (Letter of Credit) and T/T (Telegraphic Transfer).

What is the average lead time for production?

The average lead time is one month for both peak season and off-season.

Rolled Thread Sucker Rod Coupling

Name: Rolled Thread Sucker Rod Coupling
Brand: Dongying Zhaoxin Industry and Trade Co, Ltd.
SKU: 2204641255

Shandong, ChinaDongying Zhaoxin Industry and Trade Co, Ltd.

US$2.00

100 Pieces

Sample price:US$2.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

After Sales Service

Warranty

10 Months

Manufacturing Process

CNC Milling

Surface Treatment

Phosphating

Operation Pressure

10 MPa

Material

Alloy

Rod Coupling

AISI 5140/4140

Length

4-5"

Size

5/8"~1-1/8"

Type

Fs or Sh

Transport Package

Wooden Case

Specification

5/8", 3/4", 7/8" 1" 1-1/8"

Trademark

Origin

China

HS Code

8431431000

Production Capacity

6000 PCS Per Month

Key features

High Strength Thread Rolling: Cold form rolled threads create compressive stress for maximum strength at the thread root.

AP Spec 11B Compliance: Manufactured fully in accordance with AP Spec 11B standard for Class T and SM couplings.

Premium Alloy Material: Made from high quality Alloy Steel AISI 5140/4140 for durability in oil well downhole applications.

Customizable Specifications: Customizable rod coupling material, length (4-5'), and size (5/8'-1-1/8') to meet specific needs.

Versatile Product Types: Available in Sucker Rod, Polished Rod, and Sub-couplings (Cross over) for various connection needs.

Comprehensive Size Range: Thread sizes available from 5/8' to 1-1/8', including Full Size and Slim Hole options.

Professional Surface Treatment: Features phosphating and rust-proof treatment to ensure longevity and corrosion resistance.

OEM/ODM Support: Manufacturer offers OEM and ODM services with 5 R&D engineers for custom solutions.

Company profile

Dongying Zhaoxin Industry and Trade Co, Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2014-04-14 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤11.71h CertifiedTerms of Payment: LC, T/T

AI-Powered supplier vetting

SummaryDongying Zhaoxin Industry and Trade Co., Ltd. is a China-based limited company in Shandong that manufactures and processes oilfield tools and equipment. The supplier reports ISO9001:2015, ISO14001:2015, and ISO45001:2016 certifications, a dedicated R&D team, more than 40 national patents, six to ten quality-control staff, and two production lines. It offers downhole tools, cementing tools, wellhead equipment, oil-well packers, tubing anchors, and torque anchors. The company states that it provides research, development, manufacturing, sales, and after-sales service. Export activity is documented since 2014, with markets in South America and Europe, although export sales represent only 11%–20% of total sales. Evidence is insufficient to assess financial credibility, customization capability, or specific customer cases.

Supplier typeThe supplier is a Chinese limited company engaged in manufacturing and processing machinery, specifically oilfield tools and equipment. Its stated activities cover research, development, manufacturing, sales, and after-sales service, indicating a manufacturer rather than only a trading intermediary.

CertificationsThe supplier explicitly reports ISO9000 international quality-system certification and current ISO9001:2015, ISO14001:2015, and ISO45001:2016 certificates. These certifications provide direct evidence of formal quality, environmental, and occupational-health-and-safety management systems.

After-Sales capabilityThe company explicitly states that its business includes sales and after-sales service for oilfield tools and equipment. However, the slices do not describe service coverage, staffing, response times, spare parts, or warranty terms.

R&D capabilityThe supplier reports a practical and experienced R&D team, more than 40 national patents, five years of R&D-engineer experience, and a stated focus on new products and technology. These claims directly support an established innovation function, although no patent titles or technical performance data are provided.

Production capacityThe supplier operates a manufacturing plant of 11,000 square meters, two production lines, and reports one-month order fulfillment in both off-peak and peak seasons. Its listed product scope covers multiple oilfield equipment categories, supporting production capability, although detailed capacity and equipment information is unavailable.