What payment terms do you accept?

We accept T/T, LC, D/P, Western Union, PayPal, and small-amount payments.

What are the main applications for these fasteners?

They are widely used in wind towers, nuclear power, railways, automotive industry, construction, and electronic industry.

What is the diameter and length range?

The diameter ranges from M2 to M100, and the length ranges from 5mm to 5000mm.

Grade 12.9 Carbon Steel Internal and External Teeth Nut

Name: Grade 12.9 Carbon Steel Internal and External Teeth Nut
Brand: Tianchang Guer Fastener Trading Co., Ltd.
SKU: 2044113385

Anhui, ChinaTianchang Guer Fastener Trading Co., Ltd.

US$0.01

10,000-24,999 Pieces

US$0.009

25,000-49,999 Pieces

US$0.008

50,000-999,999,999,999 Pieces

US$0.003

1,000,000,000,000+ Pieces

Sample price:US$50.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Round Head

Model NO.

CG209

Groove

Cross

Connection

Common Bolt

Head Style

Round

Standard

DIN, GB, ANSI, BSW, JIS, GOST

Grade

4.8-12.9

Transport Package

2000PCS/Bag and 20000PCS/CTN

Specification

M2-M10

Trademark

Cool FASTENER CO., LTD

Origin

Anhui

Production Capacity

50000000PCS/Month

Key features

Wide Standard Compliance: Meets ISO, DIN, ANSI, JIS, GB, and other international fastener standards.

Extensive Customization: Custom sizes and non-standard types are available based on customer samples.

Diverse Surface Treatments: Options include Zinc Plated, HDG, Black Oxide, Dacroment, and various platings.

Broad Application Range: Suitable for wind towers, nuclear power, railways, automotive, and construction.

High Precision Tolerance: Manufacturing tolerance controlled within +/-0.01mm to +/-0.05mm.

Fast Delivery Guarantee: Short delivery time ensured by maintaining substantial stock inventory.

Low Minimum Order: Flexible Minimum Order Quantity starts at just 1 kg.

Multiple Payment Options: Supports T/T, LC, D/P, Western Union, PayPal, and small-amount payments.

Company profile

Importers and ExportersR&D CapabilitiesFast Delivery

Tianchang Guer Fastener Trading Co., Ltd.

Anhui, China

Business Type: Manufacturer/Factory, Trading Company CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 2 Years CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤3.41h CertifiedTerms of Payment: T/T, LC, D/P, etc.

AI-Powered supplier vetting

SummaryTianchang Guer Fastener Trading Co., Ltd. supplies fasteners and other custom metal components, including rivets, nuts, screws, bolts, pins, bushings, spacers, sleeves, and tubes. It states that it can manufacture nonstandard metal products based on customer drawings or samples, but its documented design and innovation capabilities are limited: it has no private mold, 3D software design, ODM, SDK, or stated recent new-product development capability. The supplier has written procedures for service evaluation, supplier approval, corrective action, and complaint handling, but lacks corresponding records or complete approvals. No supplier-management-system certification is reported. Production-related information includes fewer than five quality-control staff, stated lead times within 15 working days, and broad export-market coverage. No overseas warehouse, showroom, agent or branch, or offline trade-show participation is reported. A TUV Rheinland audit is identified, but the stated audit result is 0 and no...

Supplier typeThe supplier is identified as Tianchang Guer Fastener Trading Co., Ltd., with fasteners as its primary product and a product range covering rivets, nuts, screws, bolts, pins, bushings, spacers, sleeves, and tubes. Its description emphasizes manufacturing nonstandard metal products from customer drawings or samples, indicating a fastener and custom metal-parts supplier rather than a professional technical-services provider.

CertificationsThe supplier-management-system certification field is reported as NIL. Although a TUV Rheinland audit is listed with dates from April 23, 2025 to April 22, 2026, the stated audit result is 0 and the provided information does not identify a certification achieved or explain the result.

R&D capabilityThe supplier reports no private-mold R&D, no 3D software design service, no ODM service, no available SDK, and no new products during the past year. It reports one year of total R&D-engineer experience, so the available evidence indicates limited innovation infrastructure.

Production capacityThe supplier states that it manufactures nonstandard metal products and lists broad fastener-related capabilities. Reported lead times are within 15 working days in both off-peak and peak seasons, while quality-control staffing is fewer than five people; these details support order-production capability but provide limited evidence regarding scale and quality-control depth.

Customization capabilityThe supplier explicitly accepts customer design drawings or samples for custom metal parts and describes customization from samples. Sample completion is stated as 3–7 days when based on available yarns, and production is stated as 10–15 days after deposit and PP-sample confirmation, although the yarn-related wording is not fully consistent with the listed metal-product scope.

Product Q&A

Q:What standards do your fasteners comply with?

Our products comply with ISO 4017, DIN933, DIN931, DIN934, DIN912, DIN603, DIN6923, GB5783, ASTM, ANSI, JIS, and BS standards.

Q:Can you provide custom sizes or non-standard types?

Yes, we accept non-standard customization and can produce custom sizes or types based on your samples.

Q:What surface treatments are available?

We offer Zinc Plated (Yellow, White, Blue, Black), Hot Dip Galvanized (HDG), phosphorization, Black Oxide, Geomet, Dacroment, anodization, and various metal platings like Nickel, Brass, Tin, Copper, and Gold.

Q:What is the Minimum Order Quantity (MOQ)?

The Minimum Order Quantity is 1 kg.

Q:What are the lead times for production?

The average lead time is within 15 workdays for both peak and off-season periods.