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Irregular Bolt Black-Plated Torx Drive Self-Tapping Screw Fasteners
US$0.01-0.15
10,000 Pieces
Sample price:US$15.00/piece.Request sample
Product profile
Customization
AvailableMaterial
Carbon 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
Customizable Size and OEM/ODM: Factory direct support for custom sizes, OEM, and ODM services based on specific requirements.
High-Strength Carbon Steel Material: Manufactured from C1018/C1022 carbon steel for cost-effectiveness, with stainless steel options available.
Torx Drive Anti-Slip Design: 6-point star-shaped recess maximizes tool contact to prevent slippage during installation.
Self-Tapping Efficiency: Sharp threads and tapered tip allow direct cutting into wood, plastic, or thin metal without pre-drilling.
Strict Quality Certification: Certified by ISO9001:2015, IATF 16949, SGS, and ROHS with 100% inspection.
Professional Manufacturing Capacity: Over 23,000 sqm factory with 200+ sets of leading equipment for standard and non-standard parts.
Flexible Packaging Options: Supports bulk, small box, or custom pallet packaging to meet diverse shipping needs.
Company profile

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2010-12-01Nearest Port: Shenzhen, Shanghai, NingboAverage Response Time: ≤6.82hTerms 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 screws?
A:
Mainly carbon steel (C1018/C1022) for cost-effectiveness, with stainless steel (304/316) options for enhanced durability.
Q:Can the size be customized?
A:
Yes, we provide OEM/ODM services and can manufacture sizes according to your specific requirements.
Q:Do I need to pre-drill holes before installation?
A:
No, the self-tapping structure allows direct thread cutting into wood, plastic, or thin sheet metal without pre-drilling.
Q:What certifications does the product have?
A:
The product is certified by ISO9001:2015, IATF 16949, SGS, and ROHS, ensuring high quality standards.
Q:What are the payment terms?
A:
Payment terms are TT 30% deposit in advance, with the 70% balance paid before shipment.
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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