These USAE washers are a hybrid of USS standard washer and SAE attributes. They have more contact area and greater holding power with a USS-standard outside diameter, offering washers up to 36 percent larger than regular hardened washers. The inside diameter fits SAE standards, making a smaller ID for a more precise fit on bolts and studs. All American made, the USAE washers are made out of mild steel, case-hardened to 60 HRc and have a black oxide finish. They are 37 percent thicker than standard washers. They come in a range accommodating bolts from ¼ to 1 inch, with the bolt size stamped on each washer. Tolerances on all USAE washers are ±.010 inch.
Conventional wisdom holds that MIT, Cal Tech, and Stanford are three of the country’s best undergraduate engineering schools. Unfortunately, when conventional wisdom visits the topic of best engineering schools, it too often leaves out some of the most distinguished programs that don’t happen to offer PhD-level degrees.
Airbus Defence and Space has 3D printed titanium brackets for communications satellites. The redesigned, one-piece 3D-printed brackets have better thermal resistance than conventionally manufactured parts, can be produced faster, cost 20% less, and save about 1 kg of weight per satellite.
A group of researchers at the Seoul National University have discovered a way to take material from cigarette butts and turn it into a carbon-based material that’s ideal for storing energy and creating a powerful supercapacitor.
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