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Xiamen QS High Strength B18.2.1 A193 B7 Xylan Coated Hexagonal Head Screw
US$5.60
10-99 kg
US$5.50
100-999 kg
US$5.20
1,000+ kg
Sample price:US$5.60/kg.Request sample
Product profile
Customization
AvailableMaterial
Carbon SteelType
Hexagon HeadModel NO.
1/2INCH-4INCHConnection
Common BoltHead Style
HexagonalStandard
DIN, ANSI, GB, JIS, BSW, GOSTGrade
10.9Application
Machinery, Chemical Industry, Environmental, BuildingFinish
XylanScrew Thread
FullyColor
BlueLength
CustomizableService Life
LongDecay Resistance
HighTransport Package
Plywood Cases/Wooden CasesSpecification
1/2inch-4inchTrademark
Qishine, QSOrigin
ChinaKey features
High Strength Material: Crafted from Chromium-Molybdenum steel (A193 B7) for exceptional tensile strength and toughness.
Superior Corrosion Resistance: Features Xylan coating to enhance protection against corrosion and wear in harsh environments.
Customizable Length: Length is fully customizable to meet specific project requirements.
Comprehensive Certifications: Certified by API, CE, TUV, and ISO standards for global reliability.
Precision Engineering: Engineered to meet strict ASME B18.2.1 and ASTM A193 B7 specifications.
Versatile Applications: Ideal for oil & gas, petrochemical, construction, and power generation sectors.
OEM Service Available: Customization from samples is available for tailored product solutions.
Reliable Packaging: Supplied in durable plywood or wooden cases for safe transport.
Company profile
Business Type: Manufacturer/Factory, Trading Company CertifiedR&D Capacity: OEM Service Available CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 11 Years CertifiedNearest Port: Xiamen PortAverage Response Time: ≤1.63h
AI-Powered supplier vetting
SummaryThe supplier is a Xiamen-based limited trading company offering fasteners, gaskets, and flanges. It reports annual fastener productivity of 7,500 tons, exports 90% of sales, serves South America, Europe, and North America, and states one-month lead times in both peak and off-peak seasons. Customization from samples is available. However, the supplier reports no available SDK, no new products launched in the past year, no inventory, no overseas agents or branches, no overseas warehouse or showroom, and no offline trade-show participation. Quality and service controls show material gaps: there are no written corrective/preventive-action or complaint-handling procedures, and quality-control test equipment is reported as zero. An ISO 9001:2015 certificate is stated, but financial strength, customer cases, and several traceability and outsourcing controls cannot be adequately assessed from the provided information.
CertificationsThe supplier states that it holds an ISO 9001:2015 certificate. The provided information confirms the stated certification but does not provide certificate validity, scope, issuer, or audit details.
After-Sales capabilityAfter-sales and service infrastructure appears limited: there are no written corrective/preventive-action or customer-complaint procedures or records, no inventory, no overseas warehouse, no overseas showroom, no overseas agents or branches, and no overseas service countries reported. Service assessment has records but no written procedure, and some qualified supplier names were provided.
R&D capabilityThe supplier reports no available SDK and no new products launched during the past year. These explicit statements indicate limited demonstrated innovation capability for the evaluated areas.
Production capacityThe supplier reports fastener productivity of 7,500 tons annually and one-month order lead times in both peak and off-peak seasons, with export markets in South America, Europe, and North America. However, it also reports no in-stock capability, while outsourcing procedures and manufacturing contracts are unknown; the stated output supports capacity, but the overall manufacturing model is not fully validated.
Customization capabilityThe supplier explicitly offers customization from samples. This supports a demonstrated sample-based customization service, although no details are provided on engineering resources, tooling, or development lead times.
Product Q&A
Q:What material is used for this screw?
A:
The screw is crafted from Chromium-Molybdenum steel (A193 B7), providing high tensile strength and toughness.
Q:Does the product come with certifications?
A:
Yes, the products are API, CE, TUV, and ISO certified, and come with EN 10204 type 3.1 certificates.
Q:Is the length of the screw customizable?
A:
Yes, the length is fully customizable to meet specific project requirements.
Q:What industries is this screw suitable for?
A:
It is widely used in oil & gas, petrochemical, construction, and power generation industries.
Q:What is the minimum order quantity?
A:
The minimum order quantity is 1.
Send Inquiry
*To:
Xiamen Qishine Industry Co., Ltd.
Xiamen Qishine Industry Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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