Zhengzhou Huitong Pipeline Equipment Co.,Ltd.
Zhengzhou Huitong Pipeline Equipment Co., Ltd.
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| Product Name | High quality hex bolts |
| Material | 45# steel, 4OCr, 35crMoA, 40MnB, 40MnVB and other alloy steel |
| Color | white, blue, yellow, black, OEM |
| Standard | DIN, ISO, ANSI, BS, JIS |
| Grade | 8.8, 10.9 and 12.9 |
| Diameter | M10-M48, 3/8-2" |
| Length | 30MM-1000MM |
| Finishing | zinc plate(white, blue, yellow, black), Cr3+, black oxide, Ni plate, brass plate, electrophoresis, dacromet, hot-dipped galvanized, etc. |
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The Most Precise Tolerances That GuJietong Can Process | 1) Shaft diameter below 6mm and maximum pore size tolerance up to 0.003mm 2) Shaft diameter larger than 6mm and pore size tolerance is 0.005mm 3) Linearity below 100mm distance etc, tolerance is up to 0.005mm 4) 100mm or more distance linear tolerance is up to 0.01mm 5) A form tolerance is up to 0.003 - 0.005mm 6) Position tolerance is up to 0.01mm |
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Production Equipment | 1) CNC Machining Center 2) CNC Lathe 3) CNC Milling Machine 4) Precision Cutting Machine |
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Measuring Instruments and Equipment | 1) micrometer 2) smooth plug gauge 3) thread gauge 4) Image measuring instrument 5) Coordinate Measuring Machine 6) Roughness tester 7) routine inspection of calipers |
| Preferred Drawing Formats | JPEG, PDF, CAD, IGS, STP |
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Preferred Industries | 1) Communication Equipments 2) Medical Equipments 3) Photo electricity Equipments 4) Auto Industry 5) Mechanical Equipments 6) Other customized Parts |
| Types of our fasteners | Various Bolts, Screws, Studs(Threaded rods), Nuts, Washers, Rivets, Non standard Products, Precious parts, stampling, Casting parts, etc. |
| Other services are consulted in dealing | If you have any inquiry, just feel free to contact and let me know which exactly item(type) you need, I will do my best to service you here. |
| Producing standard |
d |
P | K | S | |||||||
| A | B | A | B | A | B | ||||||
| max | min | max | min | max | min | max | min | ||||
| ISO4017 | M20 | 2.5 | 12.715 | 12.285 | 12.85 | 12.15 | 30 | 29.67 | 30 | 29.16 | |
| DIN933 | M20 | 2.5 | 12.72 | 12.28 | 12.85 | 12.15 | 29.67 | 29.16 | |||