Socket Head Cap Bolt
Standard: ISO 21269
Thread Type: Fine Thread, Full Thread
Commodity: Socket Head Cap Bolt
Also Named: Allen Head Bolts
Material: Carbon Steel
Property Class: 4.8、5.6、5.8、6.8、8.8、9.8、10.9、12.9
Diameter: M8、M10、M12、M14、M16、M20、M24、M30、M36、M42、M48、M56、M64
Finish: Plain, Black, Zinc Plated, Hot Dipped Galvanized, Oxidation, Dacromet, Phosphating, Cadmium Electroplate, Nickel Plated
Head Type: Cap Head
Drive Type: Internal Hex
Alternative Standard: ISO 12474
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 socket head cap bolt in China. Please feel free to buy high quality socket head cap bolt 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 | Socket Head Cap Bolt |
Also Named | Allen Head Bolts |
Material | Carbon Steel |
Standard | ISO 21269 |
Property Class | 4.8、5.6、5.8、6.8、8.8、9.8、10.9、12.9 |
Diameter | M8、M10、M12、M14、M16、M20、M24、M30、M36、M42、M48、M56、M64 |
Finish | Plain, Black, Zinc Plated, Hot Dipped Galvanized, Oxidation, Dacromet, Phosphating, Cadmium Electroplate, Nickel Plated |
Head Type | Cap Head |
Drive Type | Internal Hex |
Thread Type | Fine Thread, Full Thread |
Dimensions Table

| Screw Thread d | M8 | M10 | M12 | M14 | M16 | M20 | M24 | M30 | M36 | M42 | M48 | M56 | M64 | ||
| P | Pitch | Fine thread -1 | 1 | 1.25 | 1.5 | 1.5 | 1.5 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 |
| Fine thread -2 | / | 1 | 1.25 | / | / | 1.5 | / | / | / | / | / | / | / | ||
| dk | max | For plain heads | 13 | 16 | 18 | 21 | 24 | 30 | 36 | 45 | 54 | 63 | 72 | 84 | 96 |
| For knurled heads | 13.27 | 16.27 | 18.27 | 21.33 | 24.33 | 30.33 | 36.39 | 45.39 | 54.46 | 63.46 | 72.46 | 84.54 | 96.54 | ||
| min | 12.73 | 15.73 | 17.73 | 20.67 | 23.67 | 29.67 | 35.61 | 44.61 | 53.54 | 62.54 | 71.54 | 83.46 | 95.46 | ||
| ds | max | 8 | 10 | 12 | 14 | 16 | 20 | 24 | 30 | 36 | 42 | 48 | 56 | 64 | |
| min | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | 19.67 | 23.67 | 29.67 | 35.61 | 41.61 | 47.61 | 55.54 | 63.54 | ||
| k | max | 8 | 10 | 12 | 14 | 16 | 20 | 24 | 30 | 36 | 42 | 48 | 56 | 64 | |
| min | 7.64 | 9.64 | 11.57 | 13.57 | 15.57 | 19.48 | 23.48 | 29.48 | 35.38 | 41.38 | 47.38 | 56.26 | 63.26 | ||
| s | Nominal Size | 6 | 8 | 10 | 12 | 14 | 17 | 19 | 22 | 27 | 32 | 36 | 41 | 46 | |
| max | 6.14 | 8.175 | 10.175 | 12.212 | 14.212 | 17.23 | 19.275 | 22.275 | 27.275 | 32.33 | 36.33 | 41.33 | 46.33 | ||
| min | 6.02 | 8.025 | 10.025 | 12.032 | 14.032 | 17.05 | 19.065 | 22.065 | 27.065 | 32.08 | 36.08 | 41.08 | 46.08 | ||
| t | min | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 15.5 | 19 | 24 | 28 | 34 | 38 | |
Product Details

Product Advantages

Advantages
1. The socket head cap bolts can be installed and applied quickly and easily with the basic screwdriver.
2. The socket head cap bolts have less weight than the same size bolt products due to their socket structure.
3. It's superior and durable due to its high-level steel materials under our strict quality system.
4. It has a low maintenance cost due to its long service life and excellent quality.
5. AYA has registered as a European brand and built over 20 brand agents in South America.
6. AYA has built an intelligent digital system to help our customer track and inspect their goods with an easy click.
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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