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DIN7991 Carbon Steel Black Flat Countersunk Head Hex Socket Cap Screw
US$0.10
300-2,999 kg
US$0.08
3,000-7,999 kg
US$0.07
8,000+ kg
Sample price:US$0.00/piece.Request sample
Product profile
Customization
AvailableMaterial
Carbon SteelType
Countersunk HeadModel NO.
DIN7991Groove
HexagonConnection
Common BoltHead Style
Counter Sunk BoltStandard
DIN, GB, ANSI, BSW, JIS, ISOGrade
10.9Thread
Unc, Unf, Un, Metric Coarse, FineSurface
Plain, Zinc Plated (Blue, White, Black, Yellow), NQuality
100% TestedPrice
Factory PriceLead Time
15-30 DaysPackage
Standard Package or Customer's PackingBox
Customer's Brand Box/Plain BoxMOQ
Can Be NegotiatedShipment
by Sea / Truck / Plane / ExpressExterior Finish
CustomizedSample
AvailableCustomized
AvailableService
One-Stop ServiceOnline Sales
24 Hours OnlineOEM/ODM
AvailableTransport Package
Bulk Packaging, Small Box(Glue Box, Color Box)Specification
M3 - M24Trademark
Mianxuan, CustomizedOrigin
Ningbo, ChinaHS Code
73181600Production Capacity
30000tons/YearKey features
Comprehensive Standard Compliance: Meets DIN, ISO, ANSI, JIS, GB, and BSW standards for global compatibility.
Wide Material Selection: Available in Carbon Steel, Stainless Steel, Brass, and other alloys.
Customizable Surface Finish: Options include Plain, Zinc Plated, Yellow Zinc, HDG, and Dacromet.
Flexible Size Range: Standard sizes M3-M24 with non-standard options available upon request.
OEM and ODM Services: Full customization for samples, drawings, packaging, and labeling.
Rigorous Quality Testing: 100% tested for torque, hardness, thread precision, and salt spray resistance.
Sample Availability: Free or low-cost samples provided for quality and dimension confirmation.
Competitive Factory Pricing: Direct factory prices with negotiable MOQ for bulk orders.
Company profile
Business Type: Manufacturer/FactoryExport Year: 2014-07-01Nearest Port: Ningbo, Zhapu, ShanghaiAverage Response Time: ≤3.67hTerms of Payment: LC, T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF
AI-Powered supplier vetting
SummaryNingbo Mianxuan Import & Export Co., Ltd. is identified as a China-based manufacturer/factory offering vehicle parts, CNC machining, stamping, casting, die-casting, fasteners, plastic, and rubber products. It reports TS 16949 and ISO 9001 certifications, more than 10 production lines, 6–10 quality-control staff, and shipment inspection reports with material certificates. The supplier provides 3D software design, ODM, and several customization options, but reports no new products in the past year, no SDK, and no OEM service for popular brands. Service-management documentation is weak: no written procedures or records are reported for assessments, corrective actions, or complaint handling. It has no in-stock capability, overseas warehouse, or overseas showroom. Financial records are indicated for 2023–2025, but their results are not provided, so financial credibility cannot be determined. No customer cases are supplied.
Supplier typeThe supplier is explicitly identified as a manufacturer/factory and limited company in Ningbo, Zhejiang, China. Its stated scope covers fasteners, metal products, machinery, vehicle parts, CNC machining, stamping, casting, die-casting, plastic, and rubber parts, indicating broad manufacturing and industrial-product coverage.
CertificationsThe supplier reports holding TS 16949 and ISO 9001 management-system certifications. It also states that each shipment will include an effective inspection report and corresponding material certificate, providing explicit evidence of documented quality-related controls.
After-Sales capabilityThe supplier reports no written procedures or records for service-capability assessment, corrective and preventive actions, or effective customer-complaint handling. It also lacks in-stock service, overseas warehouse, and overseas showroom capabilities, indicating a documented weakness in after-sales and service infrastructure.
Production capacityThe supplier reports more than 10 production lines, 6–10 quality-control staff, and a product range spanning vehicle parts, CNC machining, stamping, casting, die-casting, fasteners, plastic, and rubber parts. It is located near Ningbo and Shanghai ports and reports 21 qualified suppliers, but has no inventory capability and peak-season lead-time data is inconsistent or unclear.
Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, 3D software design services, and ODM services. These statements provide direct evidence of broad product and design customization capability.
Product Q&A
Q:What thread standards do you follow?
A:
Our screws comply with DIN, ISO, ANSI, and JIS standards, and can also be customized according to customer drawings.
Q:What stainless steel grades do you supply for bolts?
A:
We supply multiple grades including A2-70, A2-80, A4-70, A4-80, 304, 316, and 410SS, suitable for different mechanical strength and corrosion-resistance requirements.
Q:Do you provide samples before mass production?
A:
Yes, we offer free or low-cost samples for quality and dimension confirmation prior to order.
Q:How do you control product quality?
A:
Every batch is tested for torque, hardness, thread precision, and salt spray corrosion resistance, following ISO 9001 quality system standards.
Q:Do you offer OEM or customized production?
A:
Yes. We can produce screws according to samples, technical drawings, or specific drive/head combinations, and offer custom packaging and labeling.
Send Inquiry
*To:
Ningbo Mianxuan Import &Export Co., Ltd.
Ningbo Mianxuan Import &Export Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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