Stainless steel nuts are components that tightly connect mechanical equipment, and can only be connected by screws on the inside, nuts and screws of the same specification. For example, M4-0.7 nuts can only be combined with M4-0.7 screws. (In the nut, M4 means the inner diameter of the nut is about 4mm, and 0.7 means the distance between the two threads is 0.7mm. );
Although many people may have used this stainless steel round nut, they do not really realize the importance and advantages of this nut. According to the introduction of the article, you should be able to understand what kind of characteristics this nut has. When a nut needs to be used in the future, it should be considered that such a nut plays a more important role.
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The same is true for products made in the United States. For example, a 1/4-20 nut can only be combined with a 1/4-20 screw. (A 1/4 finger nut has an inner diameter of about 0.25" and 20 fingers have 20 teeth per inch. Features of Stainless Steel Round Nuts
Stainless steel nuts have the advantages of not easy to rust, anti-corrosion, thermal conductivity, and strong electrical conductivity. Another major use is injection, where it is embedded in plastic parts after heating, or injected directly from a mold.
Panasonic to Push New Solar Cell Modules and Outdoor PV Inverters
Panasonic recently introduced new solar cell modules and power conditioners, with the order placed on June 23, 2014. The company highlighted that these products are designed for high conversion efficiency and significant annual energy generation, making them ideal for residential and commercial use.
Among the new offerings is the "HIT 244α" solar module, which boosts the conversion efficiency from 18.7% to 19%, with a maximum output of 244W—up from 240W in the previous model. Panasonic attributes this improvement to the use of low-reflection glass, which minimizes light reflection and enhances performance. The suggested retail price for this model is 135,000 yen (excluding tax).
Another model, the "HIT 250α," is also available upon request. It improves upon the existing product by increasing the conversion efficiency from 19.1% to 19.5%, with a maximum output of 250W (up from 245W). In addition to the improvements seen in the HIT 244α, this model incorporates technology that reduces resistance losses, further boosting efficiency. The suggested retail price is 163,000 yen (excluding tax).
Panasonic’s HIT solar cells are known for their superior temperature characteristics compared to traditional crystalline silicon panels. They maintain higher output even at elevated temperatures. For example, the HIT 244α, with a maximum output of 244W, is expected to generate approximately 286.9 kWh annually. A conventional crystalline silicon panel would need around 262W to achieve the same output.
These annual generation estimates were calculated using the “Display of Related Industry Autonomous Rules (2012)†guidelines from the Japanese Photovoltaic Energy Association (JPEA). The calculation assumes a module installation in Chuo Ward, Osaka City, at a 30-degree tilt angle, with a 5% loss due to the power conditioner.
The new power conditioner, the "VBPC246B," is an outdoor-rated unit with a rated output of 4.6 kW. One of its key features is the inclusion of four Maximum Power Point Tracking (MPPT) circuits, offering greater flexibility than most competitors' models, which typically have only 2 or 3 MPPTs. This allows better optimization of energy production across different conditions. The suggested retail price is 410,000 yen (excluding tax).
The VBPC246B has a rated power conversion efficiency of 96%, which places it among the highest in its class for outdoor power conditioners with similar output. Even at lower power levels—such as 1 kW—the efficiency remains around 96%, ensuring efficient performance during cloudy or rainy days, which helps maximize annual energy generation.
This model follows the release of another outdoor power conditioner, the VBPC59K, launched in October 2013, which also uses SiC diodes for improved efficiency and reliability.