Heavy Hexagon Bolts
Standard: ISO 7412
Thread Type: Coarse Thread, Partial Thread
Commodity: Heavy Hexagon Bolts
Also Named: Structural Steel Screws
Material: Carbon Steel
Property Class: 8.8、10.9
Diameter: M12、M16、M20、(M22)、M24、(M27)、M30、M36
Finish: Plain, Black, Zinc Plated, Hot Dipped Galvanized, Oxidation, Dacromet, Phosphating, Cadmium Electroplate, Nickel Plated
Head Type: Large Hexagon Head
Drive Type: External Hexagon
Alternative Standard: DIN 6914、ISO 7412
MOQ: 1000kgs
Lead Time: 30 to 60 days
Product Introduction
AYA Fasteners (Hebei) Co., Ltd. is one of the most experienced manufacturers and suppliers of heavy hexagon bolts in China. Please feel free to buy high quality heavy hexagon bolts made in China here from our factory. For price consultation, contact us.

As a global supplier of customized fastening solutions, AYA's service process is also as close to customers as AYA's products. From describing needs to follow-up services, AYA will promptly and spare no effort to help customers solve any fastening problems that arise, to eliminate the concern of customers.
Product Description
Product Name | Heavy Hexagon Bolts |
Also Named | Structural Steel Screws |
Material | Carbon Steel |
Standard | ISO 7412 |
Property Class | 8.8、10.9 |
Diameter | M12、M16、M20、(M22)、M24、(M27)、M30、M36 |
Finish | Plain, Black, Zinc Plated, Hot Dipped Galvanized, Oxidation, Dacromet, Phosphating, Cadmium Electroplate, Nickel Plated |
Head Type | Large Hexagon Head |
Drive Type | External Hexagon |
Thread Type | Coarse Thread, Partial Thread |
Dimensions Table

| Screw Thread d | M12 | M16 | M20 | (M22) | M24 | (M27) | M30 | M36 | |
| P | Pitch | 1.75 | 2 | 2.5 | 2.5 | 3 | 3 | 3.5 | 4 |
| b | L≤100 | 25 | 31 | 36 | 38 | 41 | 44 | 49 | 56 |
| 100<L | 32 | 38 | 43 | 45 | 48 | 51 | 56 | 63 | |
| c | max | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 |
| min | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | |
| da | max | 14.7 | 18.7 | 23.24 | 25.24 | 27.64 | 31.24 | 34.24 | 41 |
| ds | max | 12.7 | 16.7 | 20.84 | 22.84 | 24.84 | 27.84 | 30.84 | 37 |
| min | 11.3 | 15.3 | 19.16 | 21.16 | 23.16 | 26.16 | 29.16 | 35 | |
| dw | min | 19.2 | 24.9 | 31.4 | 33.3 | 38 | 42.8 | 46.5 | 55.9 |
| e | min | 22.78 | 29.56 | 37.29 | 39.55 | 45.2 | 50.85 | 55.37 | 66.44 |
| k | Nominal Size | 7.5 | 10 | 12.5 | 14 | 15 | 17 | 18.7 | 22.5 |
| max | 7.95 | 10.75 | 13.4 | 14.9 | 15.9 | 17.9 | 19.75 | 23.55 | |
| min | 7.05 | 9.25 | 11.6 | 13.1 | 14.1 | 16.1 | 17.65 | 21.45 | |
| k1 | min | 4.9 | 6.5 | 8.1 | 9.2 | 9.9 | 11.3 | 12.4 | 15 |
| r | min | 0.6 | 0.6 | 0.8 | 0.8 | 1 | 1.2 | 1.2 | 1.5 |
| s | max | 21 | 27 | 34 | 36 | 41 | 46 | 50 | 60 |
| min | 20.16 | 26.16 | 33 | 35 | 40 | 45 | 49 | 58.8 | |
Product Details

Product Advantages

Advantages Of Heavy Hexagon Bolts
1. Possess a thicker head than the standard hex bolts and are greatly strong to distribute the clamping load amicably.
2. They are rust and water-resistant, which means you can use them for a long time.
3. Whether an automotive application or construction project, these heavy hexagon bolts are great for use in various areas.
4. These bolts are strong and sturdy to meet the industrial needs of the versatile projects that the clients want to accomplish.
5. AYA produces the fasteners keeping in mind the global market’s demands and catering to the client's individual needs.
6. AYA produces robust bolts that will meet your standard industrial requirement for a long time.
Quality Inspection

Every link in the production will be supervised by quality control personnel to ensure that the final product meets customer expectations.
Sophisticated testing instruments and experienced quality control personnel can provide customers with more accurate quality inspection reports.
Packaging & Container Loading

AYA's product packaging can not only provide very good protection to the product, but also improve the beauty of the product.
AYA provides custom labeling services.
Usage Scenarios

Why Choose AYA?

AYA provides exclusive services to 1000+ members from all over the world every year, with a unique chain service solution system, you only need to click the mouse to get exclusive fastening solution and enjoy door-to-door services.
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