Overview
| brand | Cantonese snail | Nominal diameter | twenty |
| length | one hundred and sixty | material quality | Carbon steel grade 8.8 |
| Applicable scope | Automotive Fasteners | producing area | Zhongshan |
| colour | colour | Functional purpose | |
| Packaging specifications | four hundred | model | M20 * 160 |
| Customized or not | no | Order number | Yue Luo-132 6870 6820-14804 |
| Standard type | American Standard | Delivery time | Within 72 hours |
| Performance level | Grade 8.8 | Material grade | Carbon steel grade 4.8 |
Product Details
"Various stainless steel materials have different characteristics due to their different material contents, so their corrosion resistance also varies. Below is a brief explanation of several commonly used materials: 304 is a versatile stainless steel widely used in the production of equipment and machinery that require good comprehensive performance (corrosion resistance and formability).
301 stainless steel exhibits obvious work hardening phenomenon during deformation and is used in various occasions that require high strength.
302 stainless steel is essentially a variant of 304 stainless steel with higher carbon content, which can achieve higher strength through cold rolling.
302B is a type of stainless steel with high silicon content, which has high resistance to high-temperature oxidation.
303 and 303Se are free cutting stainless steels containing sulfur and selenium, respectively, used in situations where easy cutting and high surface gloss are the main requirements.
303Se stainless steel is also used to make machine parts requiring hot heading, because under such conditions, this stainless steel has good Hot working.
304L is a variant of 304 stainless steel with low carbon content, used in situations where welding is required. The lower carbon content minimizes the precipitation of carbides in the heat affected zone near the weld, which may lead to intergranular corrosion (welding erosion) of stainless steel in certain environments.
304N is a type of stainless steel containing nitrogen, which is added to improve the strength of the steel.
316 (18Cr-12Ni-2.5Mo) material: Due to the addition of Mo, its corrosion resistance, atmospheric corrosion resistance, and high-temperature strength are particularly good, and can be used under harsh conditions; Excellent work hardening (non magnetic)"
A rivet is a nail shaped object used to connect two parts (or components) with through holes and a cap at one end. In riveting, the riveted parts are connected using self deformation or interference. There are many types of rivets, and they are not limited to form.
"5. Closing value
After determining the geometric parameters of the material and nut, the change in the closing value has a significant impact on the reuse characteristics of the locking nut. As the closing value increases, the deformation of the threaded piece increases when it opens, the strain of the threaded piece increases, and the phenomenon of strain cyclic hardening intensifies. Additionally, the pressure FN of the threaded piece increases, showing a trend of increasing the screwing out torque; On the other hand, the width of the threaded piece decreases, the total area of the threaded piece decreases, the friction force with the bolt decreases, the strain of the threaded piece increases, and the Low-cycle fatigue performance decreases, which has a tendency to reduce the maximum screw out torque. Under the combined action of multiple factors, it is difficult to predict the variation of the maximum torque with the number of repeated uses, and it can only be observed through experiments"
Cylindrical pins are widely used and usually have matching pin holes. For the tail of cylindrical pins that are exposed outside the pin holes, they usually do not have a guiding function and cannot achieve the need for quick installation of workpieces.
