What is your quality control process?

We perform 100% inspection during production and conduct random sampling checks before shipment.

What certifications do your products have?

Our products are certified under ISO9001:2008 standards.

Where are your products commonly used?

They are widely used in smart home devices, lifting tables, door openers, farming machinery, and sports equipment.

Trapezoidal Thread Carbon Steel Round Screw Nuts

Name: Trapezoidal Thread Carbon Steel Round Screw Nuts
Brand: Ningbo Langchi Transmission Technology Co., Ltd.
SKU: 795133855

Zhejiang, ChinaNingbo Langchi Transmission Technology Co., Ltd.

Negotiable

1 Piece

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Round Head

Model NO.

Nblangchi-081

Connection

Common Bolt

Head Style

Round

Standard

DIN, GB, ISO

Grade

Start

Surface Treatment

Polish

Color

Natural

Thread

Trapezoidal 30°

Transport Package

Bubble Bag+Carton+Wooden Case or up to You

Specification

ISO9001

Trademark

Nblangchi

Origin

Ningbo, Zhejiang, China

HS Code

8483401000

Production Capacity

100, 000PCS/Month

Key features

Customizable Special Specifications: Products can be customized according to customer drawings and specific requirements.

Wide Material Selection: Available in carbon steel, stainless steel, copper, aluminum, brass, POM, and more.

Comprehensive Surface Treatments: Options include polishing, blacking, anodizing, chrome plating, zinc plating, and nickel plating.

Strict Quality Control: 100% inspection during production with random sampling before shipment.

ISO9001:2008 Certified: Manufacturing process meets international quality management standards.

Fast Sample Delivery: Samples delivered within 7-15 days for customer reference.

OEM and ODM Services: Full support for original equipment manufacturing and design services.

Extensive Application Range: Suitable for smart home, lifting tables, door openers, farming machinery, and sports equipment.

Company profile

Ningbo Langchi Transmission Technology Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2016-02-29 CertifiedNearest Port: Ningbo PortAverage Response Time: ≤18h CertifiedTerms of Payment: T/T

AI-Powered supplier vetting

SummaryNingbo Langchi Transmission Technology Co., Ltd. is a China-based limited company in Ningbo, Zhejiang, established in 2016, with 52 employees and a 3,650 m² manufacturing plant. The supplier describes itself as a manufacturer of lead screws, nuts, worms, and worm gears, while another record classifies its company nature as a trading company. It holds an ISO 9001:2015 certificate, operates more than 10 production lines, and has 6–10 quality-control staff. Products support multiple international thread standards and materials, with stated customization for special specifications, screws, nuts, and M0.5–M6 worm and worm-wheel modules. Export markets span Africa, East Asia, Europe, Australia, and North America. Off-peak lead time is within 15 working days and peak-season fulfillment is one month. Evidence is insufficient to assess after-sales service, financial credibility, or customer cases.

Supplier typeThe supplier is legally identified as a combined, limited company established in China, while its company nature is separately recorded as a trading company. Its own description presents it as a professional manufacturer of screws, nuts, worms, and worm wheels, indicating a mixed manufacturing and trading profile.

CertificationsThe supplier explicitly reports holding an ISO 9001:2015 management-system certificate. This provides documented evidence of a quality-management certification, although no additional certifications are stated.

R&D capabilityThe supplier supports international, DIN103, and ACME thread standards, multiple material options, one-start and multi-start screws, and left- and right-hand screw configurations. However, the stated R&D engineer experience is three years, and there is no evidence of patents, proprietary technology, or formal product-development results.

Production capacityThe supplier reports 52 employees, a 3,650 m² plant, more than 10 production lines, 6–10 quality-control staff, and ISO 9001:2015 certification. It also states an off-peak lead time within 15 working days and peak-season fulfillment within one month, supporting a demonstrated production and delivery capacity.

Customization capabilityThe supplier explicitly states that special specifications can be customized according to customer requests, including screws, nuts, and M0.5–M6 worm and worm-wheel modules. Its product description also covers varied thread configurations and materials, providing direct evidence of customization breadth.