Round U Bolts
Standard: ASME B 18.31.5
Thread Type: UNC Thread, Partial Thread
Commodity: Round U Bolts
Also Named: Steel U Bolts
Material: Carbon Steel
Property Class: 4.8~12.9
Diameter: 1/4 U04C012 、1/4 U04C013 、1/4 U04C022 、1/4 U04C017 、1/4 U04C020 、1/4 U04C031 、1/4 U04C023 、 1/4 U04C027 、 1/4 U04C034 、1/4 U04C030 、1/4 U04C032 、 5/16 U05C021 、5/16 U05C022 、5/16 U05C023 、5/16 U05C026 、5/16 U05C045 、5/16 U05C027 、5/16 U05C047 、5/16 U05C032 、5/16 U05C056 、5/16 U05C037 、3/8 U06C022 、3/8 U06C023 、3/8 U06C025 、3/8 U06C027 、3/8 U06C026 、3/8 U06C031 、3/8 U06C036 、3/8 U06C066 、3/8 U06C041 、3/8U06C055 、1/2U08C045 、1/2U08C050 、1/2U08C085 、1/2U08C055 、1/2U08C060 、1/2U08C072 、1/2U08C084 、1/2U08C104 、3/4U12C138 、7/8U14C161 、7/8U14C173 、7/8U14C193 、1U16C217
Finish: Plain, Black, Zinc Plated, Hot Dipped Galvanized, Oxidation, Dacromet, Phosphating, Cadmium Electroplate, Nickel Plated
Alternative Standard: DIN 3570、JIS B 2809
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 round u bolts in China. Please feel free to buy high quality round u 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 | Round U Bolts |
Also Named | Steel U Bolts |
Material | Carbon Steel |
Standard | ASME B 18.31.5 |
Property Class | 4.8~12.9 |
Diameter | 1/4 U04C012 、1/4 U04C013 、1/4 U04C022 、1/4 U04C017 、1/4 U04C020 、1/4 U04C031 、1/4 U04C023 、 1/4 U04C027 、 1/4 U04C034 、1/4 U04C030 、1/4 U04C032 、 5/16 U05C021 、5/16 U05C022 、5/16 U05C023 、5/16 U05C026 、5/16 U05C045 、5/16 U05C027 、5/16 U05C047 、5/16 U05C032 、5/16 U05C056 、5/16 U05C037 、3/8 U06C022 、3/8 U06C023 、3/8 U06C025 、3/8 U06C027 、3/8 U06C026 、3/8 U06C031 、3/8 U06C036 、3/8 U06C066 、3/8 U06C041 、3/8U06C055 、1/2U08C045 、1/2U08C050 、1/2U08C085 、1/2U08C055 、1/2U08C060 、1/2U08C072 、1/2U08C084 、1/2U08C104 、3/4U12C138 、7/8U14C161 、7/8U14C173 、7/8U14C193 、1U16C217 |
Finish | Plain, Black, Zinc Plated, Hot Dipped Galvanized, Oxidation, Dacromet, Phosphating, Cadmium Electroplate, Nickel Plated |
Thread Type | UNC, Partial Thread |
Dimensions Table
| Nominal Diameter | 1/4 U04C012 | 1/4 U04C013 | 1/4 U04C022 | 1/4 U04C017 | 1/4 U04C020 | 1/4 U04C031 | 1/4 U04C023 | 1/4 U04C027 | 1/4 U04C034 | 1/4 U04C030 | 1/4 U04C032 | 5/16 U05C021 | 5/16 U05C022 | 5/16 U05C023 | 5/16 U05C026 | |
| d | ||||||||||||||||
| PP | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 18 | 18 | 18 | 18 | |
| L | Nominal Size | 1.25 | 1.25 | 2.25 | 1.75 | 2 | 3.125 | 2.25 | 2.75 | 3.438 | 3 | 3.25 | 2.188 | 2.188 | 2.188 | 2.688 |
| max | 1.28 | 1.28 | 2.28 | 1.78 | 2.03 | 3.155 | 2.28 | 2.78 | 3.468 | 3.03 | 3.28 | 2.218 | 2.218 | 2.218 | 2.718 | |
| min | 1.22 | 1.22 | 2.22 | 1.72 | 1.97 | 3.095 | 2.22 | 2.72 | 3.408 | 2.97 | 3.22 | 2.158 | 2.158 | 2.158 | 2.658 | |
| n | Nominal Size | 0.563 | 0.75 | 0.75 | 1 | 1 | 1 | 1.125 | 1.125 | 1.125 | 1.25 | 1.25 | 1.375 | 1.375 | 1.5 | 1.5 |
| max | 0.593 | 0.78 | 0.78 | 1.03 | 1.03 | 1.03 | 1.155 | 1.155 | 1.155 | 1.28 | 1.28 | 1.405 | 1.405 | 1.53 | 1.53 | |
| min | 0.533 | 0.72 | 0.72 | 0.97 | 0.97 | 0.97 | 1.095 | 1.095 | 1.095 | 1.22 | 1.22 | 1.345 | 1.345 | 1.47 | 1.47 | |
| b | max | 0.81 | 0.685 | 1.56 | 1.06 | 1.06 | 1.56 | 1.31 | 1.435 | 2.435 | 1.435 | 1.435 | 1.435 | 1.06 | 1.06 | 1.185 |
| min | 0.69 | 0.565 | 1.44 | 0.94 | 0.94 | 1.44 | 1.19 | 1.315 | 2.315 | 1.315 | 1.315 | 1.315 | 0.94 | 0.94 | 1.065 | |
| Nominal Diameter | 5/16 U05C045 | 5/16 U05C027 | 5/16 U05C047 | 5/16 U05C032 | 5/16 U05C056 | 5/16 U05C037 | 3/8 U06C022 | 3/8 U06C023 | 3/8 U06C025 | 3/8 U06C027 | 3/8 U06C026 | 3/8 U06C031 | 3/8 U06C036 | 3/8 U06C066 | 3/8 U06C041 | |
| d | ||||||||||||||||
| PP | 18 | 18 | 18 | 18 | 18 | 18 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | |
| L | Nominal Size | 4.5 | 2.688 | 4.75 | 3.188 | 5.625 | 3.688 | 2.25 | 2.25 | 2.5 | 2.75 | 2.625 | 3.125 | 3.625 | 6.625 | 4.125 |
| max | 4.53 | 2.718 | 4.78 | 3.218 | 5.685 | 3.718 | 2.28 | 2.28 | 2.53 | 2.78 | 2.655 | 3.155 | 3.655 | 6.685 | 4.155 | |
| min | 4.47 | 2.658 | 4.72 | 3.158 | 5.565 | 3.658 | 2.22 | 2.22 | 2.47 | 2.72 | 2.595 | 3.095 | 3.595 | 6.565 | 4.095 | |
| n | Nominal Size | 1.75 | 1.75 | 1.75 | 1.75 | 2 | 2 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3 | 3 |
| max | 1.78 | 1.78 | 1.78 | 1.78 | 2.03 | 2.03 | 2.03 | 2.03 | 2.53 | 2.53 | 2.53 | 3.03 | 3.03 | 3.03 | 3.03 | |
| min | 1.72 | 1.72 | 1.72 | 1.72 | 1.97 | 1.97 | 1.97 | 1.97 | 2.47 | 2.47 | 2.47 | 2.97 | 2.97 | 2.97 | 2.97 | |
| b | max | 2.06 | 1.06 | 3.06 | 1.06 | 3.06 | 1.06 | 1.31 | 1.31 | 1.31 | 1.185 | 1.31 | 1.31 | 1.31 | 3.06 | 1.31 |
| min | 1.94 | 0.94 | 2.94 | 0.94 | 2.94 | 0.94 | 1.19 | 1.19 | 1.19 | 1.065 | 1.19 | 1.19 | 1.19 | 2.94 | 1.19 | |
| Nominal Diameter | 3/8 U06C055 | 1/2 U08C045 | 1/2 U08C050 | 1/2 U08C085 | 1/2 U08C055 | 1/2 U08C060 | 1/2 U08C072 | 1/2 U08C084 | 1/2 U08C104 | 3/4 U12C138 | 7/8 U14C161 | 7/8 U14C173 | 7/8 U14C193 | 1 U16C217 | |
| d | |||||||||||||||
| PP | 16 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 10 | 9 | 9 | 9 | 8 | |
| L | Nominal Size | 5.5 | 4.5 | 5 | 8.5 | 5.5 | 6 | 7.25 | 8.375 | 10.375 | 13.813 | 16.063 | 17.313 | 19.313 | 21.688 |
| max | 5.56 | 4.53 | 5.06 | 8.59 | 5.56 | 6.06 | 7.31 | 8.465 | 10.465 | 13.933 | 16.183 | 17.433 | 19.433 | 21.808 | |
| min | 5.44 | 4.47 | 4.94 | 8.41 | 5.44 | 5.94 | 7.19 | 8.285 | 10.285 | 13.693 | 15.943 | 17.193 | 19.193 | 21.568 | |
| n | Nominal Size | 3.5 | 3.5 | 3.5 | 4 | 4 | 4.5 | 5.625 | 6.75 | 8.75 | 10.875 | 12.875 | 14.125 | 16.125 | 18.125 |
| max | 3.53 | 3.53 | 3.53 | 4.03 | 4.03 | 4.53 | 5.685 | 6.81 | 8.84 | 10.965 | 12.995 | 14.245 | 16.245 | 18.245 | |
| min | 3.47 | 3.47 | 3.47 | 3.97 | 3.97 | 4.47 | 5.565 | 6.69 | 8.93 | 11.055 | 12.755 | 14.005 | 16.005 | 18.005 | |
| b | max | 2.31 | 1.685 | 1.56 | 3.06 | 1.56 | 1.56 | 2.06 | 2.06 | 2.06 | 4.06 | 4.31 | 4.31 | 4.31 | 4.81 |
| min | 2.19 | 1.565 | 1.44 | 2.94 | 1.44 | 1.44 | 1.94 | 1.94 | 1.94 | 3.94 | 4.19 | 4.19 | 4.19 | 4.69 | |
Product Details
Product Advantages
Advantages Of Round U Bolts
1. The round U bolts are easy to install and remove.
2. They are relatively cost-effective and affordable compared with similar items.
3. It has a long service life because of its high-quality raw material and superior surface treatment.
4. It's always applied to fix the steel tubes easily and quickly with a low maintenance cost in the long term.
5. AYA has over 200 experienced official staff for kinds of fasteners tasks.
6. AYA has distributed our high-quality products to over 200 counties.
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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