Qbh Building Construction/Steel Structure/Solar Panel/Machinery/Bridge/Railway/Metro/Marine/Signal Tower/Toy/Furniture External Threaded Fasteners

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Product Description

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Basic Specifications

Connection
Common Bolt
Head Style
Hex Head, Round Head, etc.
Standard
DIN, ANSI, GB, JIS, GOST, BSW, ASTM, ISO, etc.
Grade
4.8, 6.8, 8.8, 10.9, 12.9, SS304, SS316, etc.
Process
Cold Forming/Hot Forging
Transport Package
25kg Carton + 900kg/Pallet
Specification
M3~M56
Origin
China

Product Highlights

Fasteners Application

Heavy Hex Bolts and Nuts Series

Property ASTM A325/A325M ASTM A490M
Style Heavy Hex Bolts and Nuts Heavy Hex Bolts
Size Range 1/2" - 1-1/2" / M12-M36 M16-M36
Class 8.8, 10.9, 12.9 A490M
Finish Zinc, HDG, Dacromet, Geomet Black, Z.P., H.D.G., Nickle
Material Carbon Steel Alloy/Carbon Steel
Bolt Product Details
Fastener Variety

DIN Standard Bolt Series

Standard Style Size Material
DIN 931 Hex Bolt with Single Chamfered Nut M4-M64 Carbon Steel
DIN 933 Full Thread Hex Bolt with Spring Washer M4-M24 Stainless Steel (SS304/SS316)
DIN 960 Half Thread Hex Bolt M8-M100 Carbon Steel
DIN 6914 Heavy Hex Bolts M12-M64 Alloy/Medium Carbon Steel
Technical Info

Nut & Washer Series

Standard Description Size Class
DIN 934 / ISO 4032 Standard Hex Nut M5-M56 Gr. 4, 5, 6, 8, 10
DIN 6915 Heavy Hex Nut M12-M64 CL. 10
Railway and Metro Bolts
Solar Panel Fasteners
Marine Grade Fasteners

Manufacturing Process

Cold Forging: Wiredrawing → Cold Forging → Tapping → Heat Treatment (if needed) → Finish → Packing

Hot Forging: Cutting Material → Hot Forging → Turning → Tapping → Heat Treatment (if needed) → Finish → Packing

Material Chemical Composition (%)

Grade C Si Mn P S Cr Mo/B
1008 0.06 0.06 0.33 0.013 0.003 0.01 -
1035 0.34 0.13 0.73 0.012 0.002 0.02 -
10B21 0.20 0.04 0.81 0.017 0.007 0.017 0.0021 (B)
40CR 0.40 0.21 0.54 0.015 0.008 0.95 -
42CRMO 0.42 0.27 0.92 0.013 0.004 1.01 0.20 (Mo)
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Packing & Service

Bulk Packing
Small Packing
Pallet Loading
  • Professional Manufacturer: Customized according to buyers' specifications.
  • Guaranteed Quality: Rigorous durability testing and technical design.
  • Cost Effective: Competitive factory-direct pricing.
  • 15+ Years Experience: Extensive industrial selection and solution support.
  • Free Samples: Available for standard fasteners.
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Frequently Asked Questions

1. What is your experience in the fastener industry?
Our core team has been specialized in fastener exports since 2005, providing professional selling and smooth logistics services worldwide.
2. How do you ensure competitive pricing?
We provide high-quality products at reasonable prices through efficient factory-direct supply chains. Contact us for an immediate quote for reference.
3. How is quality control managed?
Our quality control department inspects every production link for every shipment. We can provide MTC and mill certificates upon completion of the goods.
4. What is the typical delivery time?
In-stock items ship within 2-5 days. For 1-2 containers, production takes 18-25 days. Priority production is available for urgent large-scale orders.
5. What are the standard packaging options?
Standard packing is 20-25kg per carton, with 36-48 cartons per pallet (approx. 900-960kg). Customized logos and small box packaging are available upon request.
6. What payment terms do you accept?
We accept T/T and L/C for general orders. For small orders or samples, we can also accept PayPal and Western Union.

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