Square Head Nut
Standard: DIN 557
Thread Type: Coarse Thread
Commodity: Square Head Nut
Also Named: Square Nut DIN 557
Material: Steel
Property Class: 5
Diameter: M5/ M6/ M8/ M10 SW16/ M10/ M12 SW18/ M12/ M16
Finish: Plain/ Black/ Zinc Plated/ Thick-Film Passivated( ZSML)/ Zinc Flake, Silver( ZFSHL)/ Hot Dipped Galvanized/ Organic/ Geomet/ Dacromet/ Phosphating/ Cadmium Electroplate/ Nickel Plated
Drive Type: External Hex
Alternative Standard: UNI 5597
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 square head nut in China. Please feel free to buy high quality square head nut 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 | Square Head Nut |
Also Named | Square Nut DIN 557 |
Material | Steel |
Standard | DIN 557 |
Alternative Standard | UNI 5597 |
Property Class | 5 |
Diameter | M5/ M6/ M8/ M10 SW16/ M10/ M12 SW18/ M12/ M16 |
Finish | Plain/ Black/ Zinc Plated/ Thick-Film Passivated( ZSML)/ Zinc Flake, Silver( ZFSHL)/ Hot Dipped Galvanized/ Organic/ Geomet/ Dacromet/ Phosphating/ Cadmium Electroplate/ Nickel Plated |
Drive Type | External Hex |
Thread Type | Coarse Thread |
Dimensions Table
| Thread Size d | M5 | M6 | M8 | M10 SW16 | M10 | M12 SW18 | M12 | M16 | |
| P | Pitch | 0.8 | 1 | 1.25 | 1.5 | 1.5 | 1.75 | 1.75 | 2 |
| dw | min | 6.7 | 8.7 | 11.5 | 14.5 | 15.5 | 16.5 | 17.2 | 22 |
| e | max | 11.3 | 14.1 | 18.4 | 22.6 | 24 | 25.4 | 26.9 | 33.9 |
| min | 9.93 | 12.53 | 16.34 | 20.24 | 21.54 | 22.84 | 24.02 | 30.11 | |
| m | max=nominal size | 4 | 5 | 6.5 | 8 | 8 | 10 | 10 | l3 |
| min | 3.52 | 4.52 | 5.92 | 7.42 | 7.42 | 9.42 | 9.42 | 12.3 | |
| m1 | min | 2.5 | 3.2 | 4.1 | 5.2 | 5.2 | 6.6 | 6.6 | 8.6 |
| s | max=nominal size | 8 | 10 | 13 | 16 | 17 | 18 | 19 | 24 |
| min | 7.64 | 9.64 | 12.57 | 15.57 | 16.57 | 17.57 | 18.48 | 23.16 | |
| per 1000 units ≈ kg | 1.31 | 2.77 | 5.5 | 10.7 | 13 | 16.3 | 19.1 | 38.2 | |
Product Details
Product Advantages
Advantages Of Square Head Nut
1. Because of the four-sided shape, square head nut and square headed bolts are very simple to tighten.
2. When measuring the position of nuts, the square shape also acts as a quick gauge.
3. Laborers can tighten and loosen a square nut DIN 557 without having it in sight.
4. The square thread nut are ideal for use in tight locations.
5. The larger surface area of DIN 557 square nut allows them to more easily resist loosening.
Quality Inspection
AYA has a professional quality testing laboratory for the QC of the raw materials and final finished products. Our products is manufactured strictly in terms of the requirements of customers and markets. All the key points are optimized to create a high efficient production process.
Packaging & Container Loading
AYA has always attached great importance to the R&D of the packaging to improve the appearance as well as the durability in the process of shipment.
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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