Good Quality for ASTM A490 A490M Heavy Hex Structural Bolt for Birmingham Manufacturer

ASTM A490 A490M Heavy Hex Structural Bolts The bolts are intended for use in structural connections. These connections are covered under the requirements of the Specification for Structural Joints Using ASTM A490 Bolts, approved by the Research Council on Structural Connections, endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.   Dimension: ASME B18.2.6, ASME/ANSI B18.2.3.7M Inch Size: 1/2"-1.1/2" with various length Metric Size: M12-M36 with various length Grade: ASTM A490 A490M Type-1 Finish: Black Oxide, Zinc Plating, Dacromet, 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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    Christening of Multiple Application General Autonomous robot, Rita, with snowplow attachment. Consider this for entertainment purposes only, not a reflection of MAGA-Rita’s actual potential. My wife even suggested that we go to the front sidewalk, but as soon as the camera was turned off and my videographer wife left, Rita got to real work removing several inches of wet snow on top of hard pack (ice) from my driveway. Then she performed the same task on the front sidewalk, all the way from the edge of my neighbor’s driveway, to the opposite end of my own portion of sidewalk; 50 to 60 feet, down to pavement–of course, none of that was caught on camera! So, she has the weight, the thrust and the blade angle to tackle even packed snow.

    Her performance in the clip is reflective of the learning curve of my own dexterity. I still have a lead thumb which will with practice become more delicate, more precise in maneuvering the joystick. Since that thumb is paralyzed, the learning curve will be steep, but not insurmountable. It’s February, with Arctic Clippers, Siberian Expresses, marginal Lake Effects from Michigan and Erie, the longest month of the year, despite calendar limitations. There’s plenty of snow yet to come, plenty of practice ahead. The next video will give a more complete picture of her actual performance.

    To Evatech, Rita’s makers:

    Modifications.
    Flasher. The ‘party hat’ is a broken Cree LED forehead lamp in strobe mode and covered with a plastic pill bottle

    Counterweight. I clamped and zip-tied a 10lb dumbbell to her tail boom as a counterweight to the plow. The weight is wrapped in old socks to protect the powder coat. The clamps hold the weight to the boom, the zip-ties keep the weight parallel to her chassis.

    Hitch pins. As an experiment, I replaced the nuts and bolts on the angle adjustment with cotterless hitch pins to speed the process of changing blade angle. Next time, I’ll try it with nuts and bolts and wrenches to compare results. I might start carrying wrenches in my pocket when I clear snow.