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High Strength Customized Carbon Steel Black Round Nut Retaining Nut Groove Lock Nut for Hook Spanner
US$0.01
1,000-4,999 Pieces
US$0.005
5,000+ Pieces
Sample price:US$5.00/piece.Request sample
Product profile
Customization
AvailableMaterial
Carbon SteelType
Round HeadModel NO.
Round NutConnection
Common BoltHead Style
RoundStandard
CustomizedGrade
Gr4/6/8/10/12Application
Machinery,Chemical Industry,Environmental,BuildingThread Type
Internal ThreadSurface Treatment
BlackPrecision Grade
Industrial GradeTransport Package
Carton, PalletSpecification
M1-M160Trademark
GONUOOrigin
ChinaHS Code
7318160000Production Capacity
25000/MonthKey features
High Strength Grades: Available in Gr4, Gr6, Gr8, Gr10, and Gr12 for diverse load requirements.
Customized Standards: Standards are fully customizable to meet specific project specifications.
Versatile Material Options: Choose from Carbon Steel, Stainless Steel, Brass, Aluminum, or Titanium.
Black Surface Treatment: Black finish provides aesthetic appeal and basic corrosion resistance.
Multi-Industry Application: Suitable for machinery, chemical, environmental, and building sectors.
Round Head Design: Round head style ensures secure fitting and compatibility with spanners.
Industrial Precision Grade: Manufactured to industrial grade precision for reliable performance.
Company profile
Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2011-10-08Nearest Port: Ningbo ShanghaiAverage Response Time: ≤0.65hTerms of Payment: LC, T/T, PayPalInternational Commercial Terms(Incoterms): FOB, CFR, CIF, DDP
AI-Powered supplier vetting
SummaryNingbo Yinzhou Gonuo Hardware Co., Ltd. is identified as a specialized manufacturer of nuts, serving industrial equipment, tools and hardware, automotive parts, and machinery sectors. It demonstrates broad customization capability, including sample-, drawing-, minor-, flexible-, and full-customization services, supported by engineering assistance and new product activity in the past year. The supplier reports ISO9001:2015 certification, documented service procedures, corrective/preventive-action processes, and complaint-handling procedures. Production information indicates nut output of 1,000 tons, while quality inspection staffing appears limited and finished products are checked by packing staff. The supplier exports to multiple regions and is located near Ningbo and Shanghai ports. It lacks SDK, ODM, in-stock, overseas warehouse, and overseas showroom capabilities; fire drills were not conducted regularly during the past year. Financial information is limited to year references, so credibility cannot...
Supplier typeThe supplier is explicitly described as a specialized manufacturer dedicated to researching, producing, and selling nuts. Its stated trade coverage includes industrial equipment, tools and hardware, automotive parts, and manufacturing machinery, confirming a manufacturing-oriented industrial supplier profile.
CertificationsThe supplier reports an ISO9001:2015 certificate, providing explicit evidence of a quality management system certification. No additional certifications are identified in the provided information.
After-Sales capabilityThe supplier reports written procedures and followed records for service capability assessment, corrective and preventive actions, and customer complaint handling. This supports the existence of structured after-sales and issue-resolution processes, although actual service performance outcomes are not provided.
R&D capabilityThe supplier reports new products during the past year, has 41–50 years of total R&D engineer experience, and provides engineering support from drawing review through process design and sample validation. However, it reports no available SDK and no ODM service, so the evidence supports product-development capability but not a full collaborative development platform.
Production capacityThe supplier reports nut production of 1,000 tons and serves multiple export markets, with peak-season lead time of one month and off-season lead time within 15 workdays. However, it reports no in-stock capacity, no overseas warehouse, and finished-product checking by packing staff; outsourcing procedures and contracts are also of unknown status.
Customization capabilityCustomization is explicitly offered from samples, designs, minor requirements, flexible requirements, and full specifications. The engineering team supports drawing review, process design, and sample validation for non-standard nuts involving thread type, dimensions, mechanical properties, and surface treatment.
Product Q&A
Q:What materials are nuts made of?
A:
Common materials are carbon steel, stainless steel, brass, and nylon. Carbon steel offers strength but rusts; stainless steel resists corrosion; brass is non-magnetic and anti-corrosive; nylon prevents loosening and vibration.
Q:What's the difference between a nut and a bolt?
A:
Nuts have internal threads and pair with externally threaded bolts. Bolts pass through parts, and nuts secure them.
Q:How to prevent nuts from loosening?
A:
Use lock nuts, apply thread - locking compounds, or add mechanical lock devices like spring washers.
Q:How to prevent nuts from corroding?
A:
Pick corrosion - resistant materials (stainless steel, galvanized steel), apply anti - corrosion coatings, and maintain regularly.
Q:How to choose nut size and specification?
A:
Match nuts to bolts. Consider bolt thread diameter, pitch, load, and space. Refer to standards or experts.
Send Inquiry
*To:
NINGBO YINZHOU GONUO HARDWARE CO., LTD.
NINGBO YINZHOU GONUO HARDWARE CO., LTD.*Content:
Supplier replies will be sent to your registered email
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