M8 7/16'' Shoulder Metal Bolts – Ideal for Automotive Aerospace and Machinery Applications
| Attribute | Value |
|---|---|
| Usage | Fastening |
| Style | shoulder bolt |
| Size | Various sizes available |
| Head Style | cap head/shoulder bolt |
| Strength | High |
| Finish | Plain/black |
| Manufacturer | JIA SHAN Hardware Company |
| Length | As customisation |
| Package | Small Packing+Carton Packing+Pallet |
| Standard | DIN |
| Package Quantity | 100 pieces |
| Shape | Self Tapping Screws |
| Measurement System | INCH, Metric |
| Port | Shenzhen |
| Quality | Inspection before shipment |
| Color | As customisation |
| Material | stainless steel |
- Machinery: Crucial in parts that require precise alignment and movement, such as sliding components in transmission systems, where the shoulder bolt ensures smooth movement without thread interference.
- Automotive Industry: Common in suspension, engine, and braking systems, linking components like bushings and bearings, allowing rotation or sliding in moving parts with ease.
- Electronics: Helps maintain spacing between circuit boards and chips, preventing electrical interference while supporting component stability.
- Mold Manufacturing: Provides stable sliding in guiding mechanisms, helping to maintain precision and extend the life of the mold components.
- Furniture Hardware: Used in hinges and sliding rails in furniture, where it facilitates controlled movement of parts, ensuring functionality and durability.
Basic knowledge of stainless steel:
Stainless steel is an alloy material with corrosion resistance, and its main components are an alloy of elements such as iron, chromium and nickel. These elements can effectively resist oxidation and corrosion, so that stainless steel has a high degree of durability and aesthetics.
Stainless steel maintenance methods:
- Cleaning: Keep stainless steel products clean using mild detergents and soft cloth. Avoid acidic and alkaline components to prevent surface damage.
- Stain remover: For stubborn dirt, use special stainless steel stain remover following product instructions. Alcohol or vinegar can also be effective cleaners.
| No. | C% | Cr% | Ni% | Mo% |
|---|---|---|---|---|
| 304 | 0.07 | 17.5-19.5 | 8.0-10.5 | / |
| 316 | 0.08 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 |
| 301 | 0.15 | 16.0-18.1 | 6-8 | / |
| 310 | 0.08 | 24-26 | 19-22 | / |
| 304L | 0.03 | 18-20 | 8-12 | / |
| 316L | 0.03 | 16-18 | 10-14 | 2-3 |
| 321 | 0.08 | 17-19 | 9-12 | / |
201, 304, 316 are austenitic stainless steel, according to the performance of the non-magnetic, some of the performance of the weak magnetic because of the smelting of the composition of the segregation or improper heat treatment leads to the austenite in a small amount of martensite or ferrite.
Austenitic stainless steel corrosion resistance comes from the formation of chromium oxide protective layer on the metal surface. When the material temperature is heated to 450 degrees -900 degrees, the structure changes, will form chromium carbide along the edge of the crystal and can not form a protective layer of chromium oxide, thus reducing the corrosion resistance, this is also known as 'intergranular corrosion'.
304 stainless steel is a general-purpose stainless steel that is widely used to make equipment and machine parts that require good all-round performance (corrosion resistance and formability). To maintain corrosion resistance, the steel must contain more than 18% chromium and more than 8% nickel content.
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