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**Product Information**
- **Model Number:** GB, DIN, ISO, ANSI/ASTM, BS, BSW, JIS, and more
- **Type:** Hexagon Head Bolt
- **Head Style:** Hexagonal
- **Grade:** A2, A4, 4.8, 6.8, 8.8, 10.9, 12.9
- **Finish:** Polished
- **Trademark:** NGL
- **Specification:** M3 – M60
- **HS Code:** 7318151001
**Material:** Carbon Steel, Stainless Steel
**Connection:** Common Bolt
**Standard:** DIN
**Application:** Industrial Machinery
**Surface Treatment:** Passivation, Polishing
**Packaging:** 25kg per carton, then on Euro pallets
**Origin:** Ningbo, Zhejiang, China
**Port of Shipment:** Shanghai or Ningbo
**Export Markets:** Global (Europe, East Asia, North America, Middle East, etc.)
**Additional Information**
- **Trademark:** NGL
- **Packing:** Bulk in master cartons, then on pallets
- **Quality Certification:** SGS
- **Production Capacity:** 20 tons per week
**Product Description**
We are a professional supplier of high-quality fasteners, committed to providing top-notch quality and excellent service. Our products are widely used in various industries across the globe, including Europe, East Asia, North America, and the Middle East.
Our product range includes a wide variety of special bolts and non-standard bolts, such as hex head bolts, custom-made stainless steel bolts, carbon steel bolts, galvanized bolts, zinc-plated bolts, and many types of nuts, screws, and washers.
Whether you need standard or customized solutions, we can produce according to your drawings or samples. We offer free samples upon request and support flexible payment terms like T/T.
**Key Specifications**
| Name | Details |
|------|---------|
| Place of Origin | Ningbo, Zhejiang, China |
| Size | M3 – M60 or non-standard as per customer design |
| Finish | Plain, Zinc Plated, Black Oxide, Hot Dip Galvanized, etc. |
| Head Type | Hexagon Head |
| Material | Stainless Steel, Carbon Steel, Alloy Steel, etc. |
| Grade | A2-70, A4-80, 4.8, 8.8, 10.9, 12.9, etc. |
| Standard | GB, DIN, ISO, ANSI/ASTM, BS, BSW, JIS, etc. |
| Non-Standard Options | OEM available, based on drawings or samples |
| Samples | Free samples available |
| Packaging | Bulk in master cartons, then on pallets, or as per customer requirements |
| Payment Terms | T/T (Telegraphic Transfer) |
If you're interested in our products, feel free to contact us via phone or email for a quote or stock inquiry. We look forward to serving you!
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Low-temperature 1-color Pyrometer
This classification includes one color infrared pyrometers measuring range is 250℃-2200℃. The one color pyrometers currently on market are mostly narrow-band pyrometers. Its principle of temperature measurement is to determine the temperature by detecting the radiant energy that occurs in a narrow wavelength range of an object. The temperature a pyrometer measured is the average temperature in an area, and the measuring result is affected by emissivity, lens contamination and background radiation.
To use 1-color pyrometer mode, the measured area of the object should be large (it can fully fill the target field of view) , object surface should be relatively flat (not curved), measurement direction should less than 30 degrees, and the physical and chemical state of the measured object surface should be stable (not in the process of oxidation, gasification or liquefaction) , the optical channel should with less dust and without blocking and attenuation.
Main applications include: inductioin heating,heat treatment,Galvanized wire ,also suitable for temperature measurement in a good environment. Products in this catalog are usually applied to metallurgical industry(rod and wire mills.Hot rolling mills), foundry, cement kiln, induction heating, heat treatment, heating furnace, vacuum furnace, monocrystalline silicon, polysilicon, semiconductor and other industrial temperature measurement.1-color pyrometer, monochromatic infrared pyrometer, one color pyrometer, one-color infrared pyrometer
Changzhou Sijie Optoelectronics Technology Co.,Ltd. , https://www.sjinfrared.com