Structural Steel Bolts
Standard: ISO 7411
Thread Type: Coarse Thread, Partial Thread
Commodity: Structural Steel Bolts
Also Named: Heavy Hex Bolts
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: Hexagon Head
Drive Type: External Hexagon
Alternative Standard: ISO 7411、ANSI B 18.2.3.6M、ANSI/ASME B 18.2.3.7M
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 structural steel bolts in China. Please feel free to buy high quality structural steel bolts made in China here from our factory. For price consultation, contact us.

As a global supplier of customized fastening solutions, AYA's senvice 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 | Structural Steel Bolts |
Also Named | Heavy Hex Bolts |
Material | Carbon Steel |
Standard | ISO 7411 |
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 | 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 | 30 | 38 | 46 | 50 | 54 | 60 | 66 | 78 |
| 100<L≤200 | / | 44 | 52 | 56 | 60 | 66 | 72 | 84 | |
| L>200 | / | / | 65 | 69 | 73 | 79 | 85 | 97 | |
| 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
1. These premium quality structural steel bolts are used in every industry that requires structural strength and durable bolts.
2. We produce a massive amount of structural steel bolts to meet the requirement of every type of industry globally, following international standards.
3. Speedy manufacturing, the product's flexibility, sterile strength, sustainability, etc. are a few features of the steel structural bolts.
4. It provides great usage for existing and new machinery mating objects to bond correctly and without any hassle.
5. AYA produces the best structural steel bolts to cater to its clients' binding and structural needs while maintaining their thickness and quality.
6. AYA provides value-for-money steel bolts that adhere to environmental standards and can be flexibly decomposed.
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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