**Product Specifications**
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About Our Company
Shenzhen Conghui Precision Hardware Co., Ltd is a professional manufacturer specializing in precision industrial fasteners and accessory parts for over 15 years. We offer a wide range of products including screws, nuts, bolts, washers, rivets, anchors, and CNC parts. Our products meet international standards such as GB, ISO, DIN, JIS, AISI, NFE, and BSW. We have been successfully exporting to markets in North America, Southeast Asia, and Europe, and are widely used in industries like machinery, electronics, construction, and furniture. We are committed to providing high-quality products and excellent service. We believe in long-term partnerships and mutual benefits. To help you evaluate our products before placing an order, we can provide free samples (you only pay shipping costs). FAQ
1) Q: Are you a trading company or a manufacturer?
A: We are an industry and trade company.
2) Q: What is your product range?
A: Our product range includes screws, nuts, knobs, bolts, washers, rivets, anchors, and CNC parts. We strictly follow various quality standards like GB, ISO, DIN, JIS, AISI, NFE, and BSW. Non-standard products are also accepted.
3) Q: Why should I choose you? What are your advantages and the industries you serve?
A: With 9 years of production and management experience in the fastener industry, we are dedicated to providing comprehensive solutions from design to after-sales support. Customer satisfaction is our top priority.
4) Q: In which industries are your products commonly used?
A: Our products are widely used in machine assembly, electronics, construction, and furniture cabinets.
Customer Service
· 1. Full refund within 3 days if no questions asked.
· 2. Well-trained and experienced staff available to assist you.
· 3. Short lead time.
· 4. International standards compliance.
· 5. OEM, ODM, and customized services available.
· 6. Small quantity orders accepted.
· 7. Custom designs based on your requirements.
· 8. Packaging and delivery according to your specifications.
Feel free to contact us if you have any questions or special requests!
- Model NO.: CH-F004
- Type: Hexagon Head with Flange
- Head Style: Hex Head with Flange Bolt
- Grade: 4.8
- Finish: Blue-White Zinc Plated
- Certificate: ISO9001:2008, SGS Testing Report & RoHS
- OEM: Available
- Transport Package: General Export Package
- Origin: Guangdong, China
- Material: Carbon Steel
- Connection: Common Bolt
- Standard: DIN, ANSI, GB, JIS, BSW, GOST
- Application: Machinery, Chemical Industry, Environmental, Building
- Product Name: Steel Hex Flange Head Bolt M4-M20 (DIN6921)
- Payment Terms: T/T, Western Union, PayPal, etc.
- Trademark: CONGHUI
- Specification: M4-M20
- HS Code: 7318130000
Steel Hex Flange Head Bolt M4-M20 (DIN6921)
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Product Description
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| Product Name | Steel Hex Flange Head Bolt M4-M20 (DIN6921) |
| Material | Stainless Steel: SS201, SS303, SS304, SS316, SS410, SS420 Carbon Steel: 4.8, 6.8, 8.8, 10.9, 12.9 Titanium: GR1-GR5 Aluminum, Brass, etc. |
| Size | M4-M20 |
| Head Type | Flat, JIS pan, Oval, Round, Binding, I.HD, Brazier, PF. HD, Button, Fillister, Ansi.Pan, Pan washer, Indented Hex, etc. |
| Standard | ISO, GB, DIN, JIS, ANSI, BSW, ASME |
| Certificate | ISO9001:2008, SGS testing report & RoHS |
| Screw Drivers | Phillips, Slotted, Square, Crossed, Y-type, T-type, Torx, PZ drives, Hex socket, etc. |
| Finishing | Zn-plated, Ni-plated, Tin-plated, Radiant Plated, Passivated, Brass plated, Cd-plated, Phosphate Anodize, Cr-plated, Black Oxide, etc. |
| Heat Treatment | Tempering, Hardening, Spheroidizing, Stress Relieving, etc. |
| Package | General export package, or as per customer's request |
| Delivery Time | Approximately 7–15 days after confirmation of all details. Fast delivery available for urgent orders. |
| Customer Service | Replacement at our cost for any rejected products that do not match the PO drawings. |
Product Gallery
Other Products
About Our Company
Shenzhen Conghui Precision Hardware Co., Ltd is a professional manufacturer specializing in precision industrial fasteners and accessory parts for over 15 years. We offer a wide range of products including screws, nuts, bolts, washers, rivets, anchors, and CNC parts. Our products meet international standards such as GB, ISO, DIN, JIS, AISI, NFE, and BSW. We have been successfully exporting to markets in North America, Southeast Asia, and Europe, and are widely used in industries like machinery, electronics, construction, and furniture. We are committed to providing high-quality products and excellent service. We believe in long-term partnerships and mutual benefits. To help you evaluate our products before placing an order, we can provide free samples (you only pay shipping costs). FAQ
1) Q: Are you a trading company or a manufacturer?
A: We are an industry and trade company.
2) Q: What is your product range?
A: Our product range includes screws, nuts, knobs, bolts, washers, rivets, anchors, and CNC parts. We strictly follow various quality standards like GB, ISO, DIN, JIS, AISI, NFE, and BSW. Non-standard products are also accepted.
3) Q: Why should I choose you? What are your advantages and the industries you serve?
A: With 9 years of production and management experience in the fastener industry, we are dedicated to providing comprehensive solutions from design to after-sales support. Customer satisfaction is our top priority.
4) Q: In which industries are your products commonly used?
A: Our products are widely used in machine assembly, electronics, construction, and furniture cabinets.
Customer Service
· 1. Full refund within 3 days if no questions asked.
· 2. Well-trained and experienced staff available to assist you.
· 3. Short lead time.
· 4. International standards compliance.
· 5. OEM, ODM, and customized services available.
· 6. Small quantity orders accepted.
· 7. Custom designs based on your requirements.
· 8. Packaging and delivery according to your specifications.
Feel free to contact us if you have any questions or special requests!
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