Are you a manufacturer or trading company?

We are a fastener manufacturer in Ningbo, China, with many years of experience in bolts, nuts, threaded rods, and washers, offering OEM/ODM services.

Do you provide OEM/ODM service for fasteners?

Yes, we accept OEM/ODM services for custom screws, custom bolts, special nuts, and fasteners in carbon steel and stainless steel based on drawings and samples.

How is your price for screws, bolts and nuts?

We offer high-quality fasteners at reasonable prices with factory direct pricing. We provide quick quotations and competitive cost performance.

OEM Transmission Tower Double Arm Bolt with Square Nuts Per ANSI Standard

Name: OEM Transmission Tower Double Arm Bolt with Square Nuts Per ANSI Standard
Brand: Ningbo Zhonglian Fastener Manufacture Co., Ltd.
SKU: 2275845875

Zhejiang, ChinaNingbo Zhonglian Fastener Manufacture Co., Ltd.

US$0.01

1,000-999,999 Pieces

US$0.001

1,000,000+ Pieces

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Round Head

Model NO.

Double Arm Bolt

Connection

Common Bolt

Head Style

Round

Standard

DIN, ANSI

Grade

8.8

Application

Machinery, Chemical Industry, Environmental

Finish

Hot Galvanizing

MOQ

1000PCS

Delivery Time

25 Days

Durability

Enhanced

Sample

Free

Transport Package

25kg/Carton+Pallet

Specification

M5-40

Trademark

FAST

Origin

Ningbo, Zhejiang

HS Code

7318159001

Production Capacity

2500 Tons/Month

Key features

Hot-Dip Galvanized Finish: Provides exceptional corrosion resistance and long service life for outdoor pole structures.

Double Arm Bolt Design: Used in pairs to securely connect and reinforce two crossarms for stable double-arm structures.

Included Square Nuts: Each set comes with four dedicated square nuts to ensure reliable locking on steel hardware.

High-Strength Material: Manufactured from high-strength carbon steel (45#/Q235) with Grade 8.8 rating.

Custom Shank Length: Shank length is customized per crossarm assembly thickness, ranging from 12' to 36'.

ISO 9001 Certified: Quality assured by ISO 9001:2015 certification and strict QC inspection at every production step.

OEM/ODM Service: Accepts custom screws, bolts, and special nuts based on drawings and samples.

35+ Years Experience: Over 35 years of industry experience serving customers in more than 80 countries.

Company profile

Ningbo Zhonglian Fastener Manufacture Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedNearest Port: Ningbo Port, Shanghai portAverage Response Time: ≤7.02h CertifiedTerms of Payment: LC, T/T, D/P CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR

AI-Powered supplier vetting

SummaryNingbo Zhonglian Fastener Manufacture Co., Ltd. is identified as a Chinese limited company operating in Zhejiang and producing construction fasteners, including bolts, nuts, screws, washers, and non-standard fasteners. The supplied information shows ISO9001:2015 certification and also references ISO14001, ISOEN14399CE, and ISOEN15048 approvals. Reported manufacturing resources include automatic cold-forging equipment, hot-forging lines, heat-treatment lines, and an inspection center. The company states that it serves international markets and maintains overseas service institutions, but the evidence does not fully establish current service performance. Production information is inconsistent across the slices regarding establishment date, employee count, plant area, and capacity, so scale should be verified. Customization capability is not explicitly demonstrated. Trade records identify buyers in the United Kingdom and Vietnam, but the number of documented transactions is limited.

Supplier typeThe supplier is classified as a combined business entity and limited company in China, with a stated manufacturing address in Zhejiang. Its products, manufacturing equipment, and description identify it as a fastener manufacturer rather than only a trading intermediary.

CertificationsThe supplier explicitly provides an ISO9001:2015 certificate. Its company description also references ISO9001, ISO14001, ISOEN14399CE, and ISOEN15048 approvals, indicating multiple quality, environmental, and product-related certifications or approvals.

After-Sales capabilityThe supplier states that it provides considerate service and has six domestic direct-sale offices plus overseas regional service institutions in Hungary, Dubai, Malaysia, and the UK. These statements support a service network, although no specific after-sales procedures, response standards, or performance evidence are provided.

Production capacityThe supplier reports nearly 100 automatic cold-forging machines, six hot-forging lines, four imported automatic mesh-belt heat-treatment lines, a professional inspection center, and monthly capacity of up to 2,500 tons. It also lists a broad range of fastener products and international standards, providing explicit evidence of substantial manufacturing capability.

Client casesTrade records associate the supplier with CYNTECH ANCHORS LTD in the UK and CÔNG TY TNHH CST INDUSTRIES VIỆT NAM in Vietnam, covering hex screws, hex nuts, and stainless-steel flat washers. These records demonstrate identifiable international buyer activity, but only a small number of transactions are shown.

Product Q&A

Q:What are your main products?

We are a China fastener manufacturer producing bolts, screws, threaded rods, nuts, washers, anchors, rivets, stamping parts, machined parts, and hardware in carbon steel and stainless steel.

Q:How do you ensure quality in every process?

We perform QC inspection at every production step, maintain strict quality control, provide MTC and mill certificates, and undergo ISO and factory inspections.

Q:What is your delivery time for fasteners?

The delivery time is typically 30-45 days, which is flexible according to order quantity. We ship from Ningbo port.

Q:What are your payment terms?

We require 30% T/T in advance and 70% balance against B/L copy. For small orders under 1000 USD, 100% payment is required in advance.

Q:Can you provide samples of bolts and nuts?

We provide free samples for standard fasteners. New customers are required to pay the express cost for sample shipping.