MATERIALS: New PEM®high tensile strength studs provide robust fastening solutions for the most demanding applications requiring superior thread strength and hardness. These Type HFG8TM (unified) and Type HF109TM (metric) clinch studs are specially heat-treated to achieve greater tensile strength up to Grade 8 (unified) and Property Class 10.9 (metric) meeting 150 ksi/1040 MPa minimum. Their large-diameter heads serve to reduce compressive stress on panels and promote development of full thread strength.These carbon alloy steel studs have been introduced in thread sizes up to 5/16-18 / M8 and in lengths up to 1 inch/25 mm. (Longer lengths can be specially ordered.) Appropriate sizes of the Grade 8 and Property Class 10.9 products meet SAE J429 and ISO 898-1/SAE J1199 specifications, respectively. They additionally carry the appropriate head markings.
The studs install permanently in carbon steel or HSLA steel sheets as thin as .040 inch/1.5 mm with hardness up to HRB 89 on the Rockwell “B” scale. Installation is accomplished easily (without welding) using standard punch and anvil or automated equipment. The studs enable reliable, secure, and simplified attachment of components or assemblies with only a mating part necessary to complete the process.
Some of our culture's most enduring robots appeared in the 80s. The Aliens series produced another evil android, and we saw light robot fare in the form of Short Circuit. Two of the great robots of all time also showed up: The Terminator and RoboCop.
Major global metropolitan areas are implementing a vast number of technology, energy, transportation, and Internet projects to make the metropolis a friendlier, greener, safer, and more sustainable place to be.
Here’s a look at robots depicted in movies and on TV during the 1950s and 1960s. We tried to collect the classics here, omitting the scores of forgettable B movies such as Santa Claus Conquers the Martians and Dr. Goldfoot and the Bikini Machine. Stay tuned for slideshows of robot stars from later decades.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.