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Curved Washer Bulk Hot Dip Galvanized Utility Grade Steel With MTC Certificate For Insulator Cap Curved Seating
US$2.00
10,000 Pieces
Sample price:US$20.00/piece.Request sample
Product profile
Customization
AvailableTechnics
Cold PressingStandard
Non-GBModel NO.
Curved WasherUsage
Substation Fittings, Line FittingsType
FastenersGrade
Class 4.8 & 6.8, Class 8.8, Class 10.9 & 12.9Size
M3-M100Finish
Zinc Plated/Hot DIP GalvanizedMaterial
Low Carbon Steel/Medium Carbon Steel/Alloy SteelDelivery Time
Normally in 30-40 Days.Quality
100% Professional TestService
Customized OEM ODM ServiceTransport Package
Customized BasedSpecification
Customized BasedTrademark
SOKUNOrigin
ChinaKey features
Made from utility grade carbon steel with mill certificates confirming composition and strength, and each heat is documented so the curved washer traces back to source steel.
The curved profile matches the insulator cap seating radius for common mounting bolt sizes, and the hot dip galvanized coating is verified by mass measurement with salt spray tested batches.
Insulator caps present a spherical seating face, and mismatched washers cause edge loading that cracks cap hardware, while this curved washer conforms to the radius and spreads load evenly.
The curved washer seats firmly on the cap radius and keeps insulator cap joints stable under line tension and vibration, so crews install it quickly and maintenance stays low.
Blanks are formed with tooling matched to cap radii, heat treated as required and deburred, then hot dip galvanized with coating checks, and OEM or ODM drawing based radii are supported.
Production runs under an ISO 9001 quality system, and every batch is issued with MTC, material certificates and coating reports for utility insulator hardware compliance files.
Coating thickness results are documented so each galvanizing lot can be traced, and heat number records keep the curved washer matched to the certified material delivered to the project.
Parts ship with certificates, or as matched sets with insulator bolts and clevis hardware for cap seating installations, packed ready for bulk utility insulator hardware orders.
MOQ from 2,000 pieces applies, with free samples, 15 to 25 day lead time and factory direct quotation supporting utility insulator hardware procurement.
10
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 15 Years CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤6.69h
AI-Powered supplier vetting
SummarySokun is a limited company with 21 employees, related companies, and product coverage including fasteners, machined parts, and stamping parts. It supports customization from samples and designs, offers ODM services, and reports OEM service for well-known brands. Quality processes include quality assurance, documented inspection instructions, and complaint-handling records, although finished-product inspection is random and only one quality inspector is reported. Production-related strengths include in-stock capability, CNC and punching equipment, and one-month stated lead times in both peak and off-season periods. Key limitations are the absence of a valid manufacturing-capacity contract with related subcontractors, no overseas warehouse, branches, agents, or showrooms, and no documented R&D audit materials, new products in the past year, or R&D patents. Financial credibility cannot be determined from the provided information.
After-Sales capabilityThe supplier has a clear customer-complaint procedure with followed records and accepts several quotation and payment terms. However, it has no overseas warehouse, showroom, agent, or branch, and reports zero countries with overseas services, limiting evidence of localized after-sales support.
R&D capabilityThe supplier provides ODM and multiple customization-based design services, but reports no new products during the past year, no available SDK, no R&D audit documentation, and zero R&D patents. These facts indicate design support but limited documented evidence of independent innovation.
Production capacityProduction evidence includes CNC and punching equipment, in-stock capability, one-month lead times in both peak and off-season, and a product scope aligned with machined and stamping parts. Nevertheless, there is no valid manufacturing-capacity contract with related subcontractors, which creates a documented capacity-governance weakness.
Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, flexible customization, and minor customization, and also offers ODM services. This is direct evidence of broad customization capability.
Product Q&A
Q:1. What types of power line hardware and power fittings do you supply?
A:
We supply a wide range of power line hardware and power fittings for transmission and distribution systems, including suspension
clamps, strain clamps, connecting hardware, pole line hardware, U bolts, eye bolts, grounding hardware, guying hardware, anchors,
insulator fittings, OPGW/ADSS fittings, and related utility fasteners.
We also support custom products based on drawings, samples, and project specifications.
Q:2. Do you manufacture custom and non-standard power line hardware?
A:
Yes. We manufacture custom and non-standard power line hardware according to customer drawings, samples, technical specifications,
and application requirements.
Our engineering team can review dimensions, materials, tolerances, surface treatment, and manufacturing feasibility before
production. OEM and ODM services are available for utilities, EPC contractors, equipment manufacturers, wholesalers, and
distributors.
Q:3. What power line fasteners can you manufacture?
A:
We manufacture a broad range of power line fasteners and pole line bolts, including U bolts, pole line square head machine bolts,
carriage bolts, double arming bolts, eye bolts, spool bolts, threaded rods, nuts, washers, and other galvanized fasteners used in
utility structures.
Custom dimensions, threads, lengths, and configurations can also be produced according to drawings or project requirements.
Q:4. Can you supply complete power line hardware according to a BOM or project list?
A:
Yes. We can supply mixed power line hardware based on BOM lists, drawings, or project specifications.
Different products such as clamps, bolts, shackles, link plates, eye fittings, grounding components, pole line hardware, and
accessories can be consolidated into one order and shipment.
This helps EPC contractors, utilities, and distributors simplify purchasing and reduce the number of suppliers required for a
project.
Q:5. What information do you need to quote power line hardware?
A:
For an accurate quotation, please provide as much of the following information as possible:
* Product name or BOM list
* Drawings in PDF, CAD, DWG, STEP, or similar formats
* Dimensions and thread specifications
* Material requirements
* Surface treatment or galvanizing requirements
* Mechanical or load requirements
* Applicable standard, if required
* Quantity and packaging requirements
If complete specifications are not available, you can also send photos or samples for technical evaluation.
Send Inquiry
*To:
Ningbo Yinzhou Sokun Import and Export Co., Ltd.
Ningbo Yinzhou Sokun Import and Export Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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