Tension Control Bolts Price - DIN603 ANSI B18.5 Round Head Square Neck Carriage Bolts – Dingshen Metalworks

Carriage Bolts Guardrail bolts Round Head Square Neck Standard: DIN603, ASME/ANSI B18.5, Various configurations are available Metric Szie: M6-M36 with various lengths Inch Size: 1/4”-1.1/2” with various lengths Material Grade: ISO 898-1 4.8, 8.8, 10.9; ASTM A307 A; SAE J429 2, 5, 8 Finish: Plain, Black Oxide, Zinc Plated, Hot Dipped Galvanized and so on Packing: Bulk about 25 kgs each carton, 36 cartons each pallet Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports Please feel free to contact us for more details.

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    An engineer and a historian discuss how technology and human behavior are shaping the sustainable energy revolution.

    In the first in a series of events exploring the intersection of engineering and humanities perspectives on common themes, Stanford faculty members John O. Dabiri, professor of civil and environmental engineering and of mechanical engineering, and Ian Morris, professor of classics, engaged in a moderated discussion about the future of sustainable energy. The two spoke at length about their different viewpoints on a central question: What can we expect the transition from fossil fuels to renewable energy to look like in light of new technologies and age-old human behavior?

    Morris, whose most recent book explored the role of energy in shaping inequality and violence over the past 20,000 years, said that the three critical periods of energy transition – from foraging to farming to fossil fuel societies – have resembled the messy process of natural selection. “Changing our behavior is a process driven by the same forces that drive biological evolution,” he said. “We respond positively to things that allow us to do what we want to do in an easier way without taking too many risks. So if you have electric cars that cost less and run on less than internal combustion engines, then people will buy them. If you don’t, they won’t.”

    Dabiri, whose research focuses on new ways to capture wind energy, said that engineers should think a little more about the context of their work – how renewable energy solutions will look different in Palo Alto than they will in Mumbai – as well as how a deeper understanding of human nature could help motivate people to change their behavior. “We often as engineers come in to the problem thinking if we come up with a cool enough gadget, people will flock to it. That might be true of the iPhone,” he said. “Until we come up with the iPhone equivalent for climate change, for solar energy, for wind energy, it’s going to be an uphill battle for massive adoption of these technologies.”



    Anchor Cement is a fast-setting, general purpose grouting material designed to anchor bolts or railings into concrete for a super tight grip. Fast Set Cement Mix is formulated for setting fence posts quickly and easily. Simply pour the mix into the hole and add water. The product sets in minutes, allowing fence to be hung the same day.