Carbon Steel Black Oxide Hex Socket Csk/Countersunk Head Screw

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  • Model No.: DIN7991
  • Type: Countersunk Head Bolt
  • Connection: Standard Bolt
  • Standards: DIN, GB, ANSI, JIS
  • Certifications: ISO, RoHS, SGS
  • Available Materials: Stainless Steel, Carbon Steel
  • Brand: JR
  • Size Range: M3 to M24
  • HS Code: 3917400000
  • Material: Carbon Steel
  • Head Style: Countersunk (CSK)
  • Socket Type: Hexagon
  • Grade: 10.9
  • Standards Available: DIN, ISO, JIS, ANSI, BSW
  • Size: 3mm to 24mm
  • Packaging: Plastic Bag + Carton Box + Wooden Pallet
  • Origin: China
Product Description
1. **Certification:** ISO, ROHS, SGS
2. **Standards:** DIN, ANSI, ASTM, JIS, BSW
3. **Strength Grades:** 4.8, 8.8, 10.9, 12.9, A2-70, A4-70, A4-80
4. **Finishing Options:** Yellow Zinc Plated, Blue Zinc Plated, White Zinc Plated, Galvanized, HDG, Chromate, Dacromet
5. **Material Options:** Carbon Steel, Stainless Steel (SS304, SS316), A2, A4
6. **Sizes:** M2 to M100, Length: 5mm to 300mm
7. **Minimum Order Quantity (MOQ):** 500 pcs
8. **Port of Shipment:** Shenzhen, Shanghai
9. **Packing Options:** Plastic Bags + Chipboard Boxes
Product Name Carbon Steel Black Oxide Hex Socket Countersunk Head Screw
Material Carbon Steel
Color Black
Standards DIN, GB, ISO, JIS, BA, ANSI
Grade 4.8, 8.8, 9.9, 10.9, 12.9
Finish Black Oxide
Thread Type Coarse, Fine
Application Construction, Machinery

Production Show
Carbon Steel Black Oxide Hex Socket Csk/Countersunk Head Screw
Carbon Steel Black Oxide Hex Socket Csk/Countersunk Head Screw


Company Show
Carbon Steel Black Oxide Hex Socket Csk/Countersunk Head Screw Packing Details
Carbon Steel Black Oxide Hex Socket Csk/Countersunk Head Screw

Certification
Carbon Steel Black Oxide Hex Socket Csk/Countersunk Head Screw

FAQ
Q: Are you a trading company or manufacturer?
A: We are a factory and offer OEM services.
Q: What is your delivery time?
A: Typically 7–10 days if in stock, 15–20 days if not. Lead time depends on order quantity.
Q: Do you provide samples? Are they free?
A: Yes, we can provide samples at no cost, but shipping charges apply.
Q: What are your payment terms?
A: 30% T/T in advance, balance before shipment, or L/C.
If you have any other questions, feel free to contact us via email or phone. We're here to help!

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