Overview
| brand | Cantonese snail | Nominal diameter | two point five |
| length | eight | material quality | Carbon steel 14H |
| Applicable scope | Fasteners for bridge engineering | producing area | Dongguan |
| colour | black | Functional purpose | |
| Packaging specifications | three thousand | model | M2.5 * 8 |
| Customized or not | no | Order number | Yue Luo-132 6870 6820 |
| Standard type | Japanese standard | Delivery time | Within 24 hours |
| Performance level | Level 12.9 | Material grade | Carbon steel 22H |
Product Details
Stainless steel screws usually refer to steel screws that have the ability to resist corrosion from air, water, acids, alkali salts, or other media. Stainless steel screws are generally not easy to rust and are durable, and can be used in fields such as environmental protection equipment, medical equipment, communication equipment, etc.
"The tooth shape of the American national thread (with a tooth shape angle of 60 and a height of H/8) is different from that of the Wyeth thread (with a tooth shape angle of 55 and a height of H/6). In regions and industries affected by American industry, American national threads are widely used. In the World War II, because the thread standards used by the Allies were not uniform, the logistical supply difficulties caused serious economic losses and casualties to the Allies. Just after the end of World War II, allied countries such as the United States, Britain, and Canada immediately began to develop a unified thread standard among the allies, and in 1948, they issued a unified thread standard.
Due to the dominant economic and military strength of the United States within the Allied forces at that time, the unified thread was mainly developed based on the national thread standards of the United States. The first letter "U" of the unified thread code "UN" originated from the "unification" among the Allies; The latter letter "N" comes from the code name "N" for American national threads. From then on, Unified Thread began to occupy the original market of Wyeth Thread in the UK"
Whether stainless steel plate or heat-resistant steel plate, austenitic steel plate has the best comprehensive performance, with sufficient strength, excellent plasticity, and low hardness, which is also one of the reasons why they are widely used. Austenitic stainless steel is similar to most other metal materials in terms of tensile strength, yield strength, and hardness, which increase with the decrease of temperature; Plasticity decreases with decreasing temperature. Its tensile strength increases relatively uniformly within the temperature range of 15-80 ° C. More importantly, as the temperature decreases, the impact toughness of stainless steel screws decreases slowly and there is no brittle transition temperature. So stainless steel can maintain sufficient plasticity and toughness at low temperatures.
"GBT 3098.19-2004
Blind rivets in China are divided into:
GB/T12615 Closed end flat round head blind rivets;
GB/T12616 Closed end countersunk head pull mandrel rivets;
GB/T 12617 Open end countersunk head pull mandrel rivets;
GB/T 12618 Open end flat round head blind rivets;
The international standard is DIN7337;
There are 1990 versions and 2004. 2006 versions, with the 2006 version being the main version"
The shaft circlip is a kind of Machine element installed on the grooved shaft and used to fix the hole movement of components. The inner diameter of the shaft clamp spring is slightly smaller than the assembly shaft diameter. When installing the shaft snap ring, it is necessary to use a snap ring pliers. Insert the pliers into the hole of the retaining ring, expand the retaining ring, and then place the shaft snap ring in the shaft groove.
