
Black Oxide Flange Bolts
Standard: ISO 15072
Thread Type: Fine Thread / Partial Thread
Commodity: Black Oxide Flange Bolts
Also Named: Flange Allen Head Bolt
Material: Carbon Steel
Property Class: 8.8, 9.8, 10.9, 12.9
Diameter: M8, M10, M12, (M14), M16
Finish: Plain, Black Oxide, Zinc Plated, Hot Dipped Galvanized, Oxidation, Dacromet, Phosphating, Cadmium Electroplate, Nickel Plated
Head Type: Hexagon Head
Drive Type: External Hex
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 black oxide flange bolts in China. Please feel free to buy high quality black oxide flange 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 | Black Oxide Flange Bolts |
Also Named | Flange Allen Head Bolt |
Material | Carbon Steel |
Standard | ISO 15072 |
Property Class | 8.8, 9.8, 10.9, 12.9 |
Diameter | M8, M10, M12, (M14), M16 |
Finish | Plain, Black Oxide, Zinc Plated, Hot Dipped Galvanized, Oxidation, Dacromet, Phosphating, Cadmium Electroplate, Nickel Plated |
Head Type | Hexagon Head |
Drive Type | External Hex |
Thread Type | Fine Thread / Partial Thread |
DIMENSIONS TABLE

| Screw Thread | M8 | M10 | M12 | (M14) | M16 | |||
| d | ||||||||
| P | Pitch | Fine thread, 1 | 1 | 1 | 1.25 | 1.5 | 1.5 | |
| Fine thread, 2 | / | 1.25 | 1.5 | / | / | |||
| a | max | 3 | 3 | 4.5 | 4.5 | 4.5 | ||
| min | 1 | 1 | 1.5 | 1.5 | 1.5 | |||
| b | L≤125 | 22 | 26 | 30 | 34 | 38 | ||
| 125<L≤200 | 28 | 32 | 36 | 40 | 44 | |||
| L>200 | / | / | / | / | 57 | |||
| c | min | 1.2 | 1.5 | 1.8 | 2.1 | 2.4 | ||
| da | max | Type F | 9.2 | 11.2 | 13.7 | 15.7 | 17.7 | |
| Type U | 10 | 12.5 | 15.2 | 17.7 | 20.5 | |||
| dc | max | 17 | 20.8 | 24.7 | 28.6 | 32.8 | ||
| ds | max | 8 | 10 | 12 | 14 | 16 | ||
| min | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | |||
| du | max | 8.8 | 10.8 | 12.8 | 14.8 | 17.2 | ||
| dw | min | 14.9 | 18.7 | 22.5 | 26.4 | 30.6 | ||
| e | min | 10.95 | 14.26 | 16.5 | 19.86 | 23.15 | ||
| k | max | 8.5 | 9.7 | 12.1 | 12.9 | 15.2 | ||
| k1 | min | 3.8 | 4.3 | 5.4 | 5.6 | 6.8 | ||
| f | max | 2.1 | 2.1 | 2.1 | 2.1 | 3.2 | ||
| r1 | min | 0.4 | 0.4 | 0.6 | 0.6 | 0.6 | ||
| r2 | max | 0.5 | 0.6 | 0.7 | 0.9 | 1 | ||
| r3 | max | 0.36 | 0.45 | 0.54 | 0.63 | 0.72 | ||
| min | 0.16 | 0.2 | 0.24 | 0.28 | 0.32 | |||
| r4 | Ref. | 5.7 | 5.7 | 5.7 | 5.7 | 8.8 | ||
| s | max | 10 | 13 | 15 | 18 | 21 | ||
| min | 9.78 | 12.73 | 14.73 | 17.73 | 20.67 | |||
| V | max | 0.25 | 0.3 | 0.35 | 0.45 | 0.5 | ||
| min | 0.1 | 0.15 | 0.15 | 0.2 | 0.25 | |||
PRODUCT DETAILS

PRODUCT ADVANTAGES

ADVANTAGES OF Black Oxide Flange Bolts
1. Black oxide flange screws has a lower price than the other types due to its surface techniques.
2. It has an unique appearance contrasted to the other galvanizing types to match the function.
3. It does not require an added washing machines in between head and items attached.
4. With the flange kind, it can utilize a fantastic amount of torque for solidation.
5. AYA has an overall QC system consisting of products experts and educated QC staffs..
6. AYA has created over 100 brand-new bolts for our worldwide consumers in last year.
QUALITY INSPECTION

PACKAGING & CONTAINER LOADING

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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