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Pan Head Sems Combination Bolt with Captive Washer Irregular Bolt
US$0.01-0.20
10,000 Pieces
Sample price:US$15.00/piece.Request sample
Product profile
Customization
AvailableMaterial
Stainless SteelType
Round HeadConnection
Common BoltHead Style
RoundStandard
DIN, ANSI, GB, JIS, BSW, GOSTGrade
8.8Application
Machinery, Chemical Industry, EnvironmentalFinish
Hot-WorkingCondition
NewCraftwork
Cold HeadingDelivery
According to The Order QuantityTransport Package
PE Bag + CartonsSpecification
OEMTrademark
GSOrigin
ChinaKey features
Corrosion-Resistant Materials: Available in 304 stainless steel, zinc-nickel alloy, and galvanized options for excellent rust resistance.
Integrated Installation Design: Pre-assembled with flat and spring washers to simplify installation and improve efficiency.
Anti-Loosening Performance: Equipped with a spring washer to increase friction and prevent loosening due to vibration.
Customizable Specifications: Supports custom lengths and sizes to meet specific industrial and mechanical requirements.
Stable Torque Transmission: Cup head hexagon socket design prevents slipping during installation for high fastening force.
OEM/ODM Service: Factory direct with customized service available for size and production requirements.
Comprehensive Certifications: Certified under ISO9001:2015, IATF 16949, SGS, and ROHS standards.
Multiple Material Options: Materials include Carbon steel, SUS304, SUS316, and Brass for diverse applications.
Company profile

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2010-12-01Nearest Port: Shenzhen, Shanghai, NingboAverage Response Time: ≤6.38hTerms of Payment: LC, T/T, PayPalInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF
AI-Powered supplier vetting
SummaryNingbo Yinzhou Gangsheng International Trade Co., Ltd. is a China-based limited trading company that also identifies as a manufacturer/factory, with operations in Zhejiang and a factory location reported in Guangdong. It focuses on lithium-battery energy-storage products, including portable power stations and generators, and reports applications across portable, residential, UPS, and industrial/commercial energy storage. The supplier states that its products hold CE, FCC, and PSE certifications and that its management systems hold BSCI and ISO 9001 certifications. Reported operational indicators include eight production lines, 11–20 quality-control staff, and annual output of 100,000 power-station and generator units. It reports 90% export sales, self-operated import/export rights, and exporting since 2010. Evidence supports production experience, export capability, and certification claims, but is insufficient to confirm after-sales capability, financial credibility, customization services, or named...
Supplier typeThe supplier is identified as a trading company in its basic information, while its business-entity classification also states "Trading Company,Manufacturer/Factory." It reports a factory in Guangdong/Shenzhen, production lines, quality-control staff, and product output, supporting a hybrid trading-and-manufacturing profile.
CertificationsThe company states that its products have passed CE, FCC, and PSE certifications, and reports BSCI and ISO 9001 supplier-management-system certifications. These are explicit certification claims, although the provided information does not include certificate numbers, validity dates, or issuing bodies.
R&D capabilityThe supplier reports a strong R&D team, engineers with more than 10 years of lithium-ion vehicle-battery R&D experience, and an Industry 4.0 intelligent manufacturing system. It also describes a focus on innovative lithium-battery energy-storage products and sustainable technology, providing positive evidence of innovation orientation, although the separate data reports total R&D-engineer experience as less than five years and creates an unresolved inconsistency.
Production capacityThe supplier reports a Guangdong factory, eight production lines, 11–20 quality-control staff, an independent product test line, advanced testing equipment, and annual production of 100,000 power stations and generators. These stated facilities and output figures provide explicit evidence of established production capability.
Product Q&A
Q:What materials are available for these bolts?
A:
Materials include Zinc-nickel alloy, Carbon steel, SUS304, SUS316, and Brass.
Q:Can the bolt size be customized?
A:
Yes, we provide OEM/ODM services and can manufacture sizes according to your specific requirements.
Q:What is the anti-loosening feature of this bolt?
A:
It is equipped with a spring washer that generates elastic deformation to increase friction and prevent loosening from vibration.
Q:Does the bolt come with washers?
A:
Yes, the bolt is pre-assembled with a flat washer and a spring washer into a single unit.
Q:What certifications does the product have?
A:
The product is certified under ISO9001:2015, IATF 16949, SGS, and ROHS.
Send Inquiry
*To:
Ningbo Yinzhou Gangsheng International Trade Co., Ltd.
Ningbo Yinzhou Gangsheng International Trade Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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