Professional Grade Carbon Steel Knurled Torx Screw CE Certified Metric Factory for Drywall and Wood Deck Hardened Zinc Coated
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Product Highlights
- Factory Direct Supply: Direct manufacturing from Jiaxing, Zhejiang, China without trading company intermediaries.
- Comprehensive Quality Control: 100% inspection by QC department before shipment with traceable inspection reports available.
- Wide Standard Coverage: Meets DIN, ANSI, GB, JIS, BSW, GOST, ISO, and ASTM standards with customized options.
- Free Samples Available: Free samples provided for standard fasteners; customer covers express shipping charges.
- Advanced Testing Equipment: Equipped with tensile testers, hardness testers, salt spray testers, and 3D detectors.
- Customized Manufacturing: OEM service available based on customer drawings or samples for non-standard parts.
- Diverse Material Options: Available in Carbon Steel, Alloy Steel, and Stainless Steel with various grades.
- Flexible Payment Terms: Accepts T/T and L/C with 30% deposit for production and balance before shipment.
Product Attributes
- Customization
- Available
- Material
- Carbon Steel
- Type
- Hexagon Head
- Model NO.
- M4.2-M4.8
- Connection
- Common Bolt
- Head Style
- Hexagonal
- Standard
- DIN, ANSI, GB, JIS, BSW, GOST, Customized
- Grade
- 12.9
- Application
- Machinery, Chemical Industry, Environmental, Building
- Finish
- Hot Galvanizing
- Transport Package
- Cartons+Pallets
- Specification
- M4.2-M4.8
- Trademark
- YUNXI
- Origin
- China
- HS Code
- 7318159090
- Package Size
- 26.00cm * 24.00cm * 15.00cm
- Package Gross Weight
- 23.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Professional Grade Carbon Steel Knurled Torx Screw CE Certified Metric Factory for Drywall and Wood Deck Hardened Zinc Coated
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Product Description
| Name | Carbon Steel Screw |
| Place of Origin | Jiaxing, Zhejiang, China |
| Size | ST2.9-ST6.3 or non-standard |
| Finish | Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Magni,Geomet,H.D.G.,Electrophoresis etc. |
| Test Equipments | Caliper, Go&No-go gauge, Tensile test machine, Hardness tester, Salt spraying tester, H.D.G thickness tester, 3D detector,Projector, Magnetic flaw detecte... |
| Material | Carbon Steel, Alloy Steel, Stainless Steel |
| Grade | ASTM Gr.2 Gr.5,A325,Gr.8; Class 8.8, 10.9, 12.9; A2-70, A4-70, A4-80.etc |
| Standard | GB, DIN, ISO, ANSI/ASTM, BS, BSW, etc |
| Non-standards | OEM is available, according to drawing or samples |
| Samples | Samples are free. |
| Package | bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand |
| Payment | T/T,L/C |
1.BOLT : Hex bolt , carriage bolt, heavy hex bolt, flange head bolt, achor bolt etc.
Standard:DIN933/931,DIN6921, DIN912,DIN603,DIN7985,DIN7991,ASME/ANSI B18.2.1 ASME/ANSIB18.2.3.1M,GB, BSW, ISO
2.Nut : DIN934,DIN6923,DIN985,ISO4032 hex heavy hex nut, A194 2H nuts,A563/A563M cap nut, nylon nuts, etc.
Rod : threaded rod DIN975,DIN976, threaded bar DIN975 stud bolt, B7 stud bolt etc.
3.Screw :self drilling screw, self tapping screw; Hex lag screw,machine screw,furniture screw,wood screw, etc.
4.Washer :flat washer DIN125, spring washer DIN127, lock washer,square washer,spring lock washer, etc.
Jiaxing Yunxi Technology Co., Ltd. ensures that every bolt and nut produced meets or exceeds international standards and the specific requirements of customers.
Regarding the appearance, size, hardness, coating thickness, go/no-go Gauge, tensile strength, Proof load of the products, we can strictly control all of these aspects internally. For other mechanical performance tests, we can also entrust a third party to conduct the testing.
We will organize and analyze the test data, finally generate a traceable inspection report and archive it for preservation.

A1: We are factory.
Q2: Can I visit your factory?
A2: Yes! Warmly welcome to visit our factory. It would be Great if you can inform us in advance.
Q3:The quality of your products?
A3:The company has advanced production and testing equipment .Every products will be 100% inspected by our qc department before shipment
Q4:How about your price?
A4:High quality products with reasonable price. Please give me a inquire, I will quoted you a price for you refer at once.
Q5:Could you provide free samples?
A5:We can provide free samples for standard fastener, But the clients will pay the Express charges.
Q6: What's your Delivery Time?
A:Standard parts: 7-15days,Non-standard parts: 15-25days.We will make the delivery as soon as possible with the guarantee quality.
Q7: How should I order and make payment?
A7:By T/T, for samples 100% with the order; for production, 30% paid for deposit by T/T before production arrangement, the balance to be paid before shipment.
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASI2531757". Items marked "" are certified.
Company Profile
Jiaxing Yunxi Technology Co., Ltd. is located in Zhejiang Province of China - a place known as the "City of fasteners". We are a professional manufacturer of fasteners, specializing in providing a large quantity of standard fasteners, as well as small-batch, multi-specification, and non-standard customized bolts, nuts, screws, etc.
Haiyan Lewei Hardware & Tools Co., Ltd. Is another company of ours, specializing in import and export business. We have a technical, production and sales team with over 20 years of experience in fasteners. We can quickly assess and quote based on your drawings and samples, and flexibly arrange production. We are your reliable choice for R&D trial production as well as emergency replenishment.
Small Bolts, Big Manufacturing
We select high-quality raw materials to ensure the quality from the very beginning. Forming is like shaping the bones, thread processing is like carving the soul, heat treatment is like infusing the soul, and surface treatment is like donning armor. We understand that each bolt bears the responsibility of safety. Therefore, Jiaxing Yunxi Technology Co., Ltd. Will continue to delve deeply into every detail of the manufacturing process, using reliable products to connect and safeguard a safer and more robust world.
Jiaxing Yunxi Technology Co., Ltd. Ensures that every bolt and nut produced meets or exceeds international standards and the specific requirements of customers.
Regarding the appearance, size, hardness, coating thickness, go/no-go Gauge, tensile strength, Proof load of the products, we can strictly control all of these aspects internally. For other mechanical performance tests, we can also entrust a third party to conduct the testing. We will organize and analyze the test data, finally generate a traceable inspection report and archive it for preservation.
Our products are widely used in industries such as mechanical equipment, automotive components, and new energy. No matter which industry you come from, we are willing to be a solid and reliable partner in your supply chain.
About Our Factory & Business Background
- Address
- Jiaxing, Zhejiang, China
Our Production Capability & Technical Expertise
- Main Products
- Standard Bolts and Nuts, No-Standard Bolts and Nuts, Grease Nipple, Custom Fastener
FAQ
- Are you trading company or manufacturer?
- We are factory.
- Can I visit your factory?
- Yes! Warmly welcome to visit our factory. It would be Great if you can inform us in advance.
- The quality of your products?
- The company has advanced production and testing equipment .Every products will be 100% inspected by our qc department before shipment
- How about your price?
- High quality products with reasonable price. Please give me a inquire, I will quoted you a price for you refer at once.
- Could you provide free samples?
- We can provide free samples for standard fastener, But the clients will pay the Express charges.
- What's your Delivery Time?
- Standard parts: 7-15days,Non-standard parts: 15-25days.We will make the delivery as soon as possible with the guarantee quality.
- How should I order and make payment?
- By T/T, for samples 100% with the order; for production, 30% paid for deposit by T/T before production arrangement, the balance to be paid before shipment.
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