2017 Good Quality ASTM A194 2HM Heavy Hex Nuts for Zambia Manufacturer

ASTM A194/A194M 2HM Heavy Hex Nuts API 6A Flange Valve Wellhead Heavy Hex Nuts Dimension Standard: ASME B18.2.2, ASME B18.2.4.6M, ISO 4033, Din934 H=D Inch Size: 1/4”-4” with various lengths Metric Size: M6-M100 with various lengths Other Available Grade: ASTM A194/A194M 2H, 2HM, 4, 4L, 7, 7L, 7M, 8, 8M, 16 and so on. Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc. Packing: Bulk about 25 kgs each carton, 36 cartons each pallet Advantage: High Quality, Competitive Price, Timely Delivery,Technical Support, Supply Test Reports Please feel free to contact us for more details.

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    It doesn’t seem to matter what brand you buy… quadcopters and their brushless motors come stock with the achilles heel of multirotor flight.

    That’s right I’m talking about the lowly prop nut. And they are the first things you should replace on your copter.

    The standard aluminum prop cone may work great on airplanes. But on multirotors they are a disaster waiting to happen.

    People try all sorts of ways to keep their propellers from falling off. Some swear by using thread lock, but the problem with that is if any of the thread lock gunk gets on your plastic propellers it can act like a solvent and weaken them.

    Other people use rubber band prop savers. But propeller balance is critical on multirotors. You can forget about getting jello free video with these things.

    I’ve seen tons of crashes that could have been avoided just by upgrading to nylon Locking aircraft nuts. These things are the best I’ve used to keep your props where they should be.

    Replacement is easy… Take one of your old aluminum nuts to the hardware store with you.

    Most stores have some type of guage in the hardware section… Just screw your existing prop nut onto the guage to confirm what size it is

    And find that size in the nylon locking nut section

    How convenient, my hardware store even sells them in packages of four.

    To install them just remove the old nuts and screw on the nylock nuts.

    The internal nylon washer goes on the top. If your previous prop nuts acted as their own washers make sure you also get the proper size washers at the hardware store. Washers make sure even pressure is applied to the propeller reducing the chance of a prop breaking.

    Also don’t tighten the nut down too much… Just enough so the nylon washer locks in and the nut prevents the prop from spinning on the shaft.

    That’s it… You have just greatly increased your copter’s safety and reliability!



    In this video we take a high level look at how I built up my version of a fully open source Motorized Camera Slider (OpenSlider), a designed based on Thomas Sanladerer’s Camera Slider work.

    Thomas Sanladerer Channel: https://www.youtube.com/channel/UCb8Rde3uRL1ohROUVg46h1A

    Rails and Gantry can be found at:
    https://openbuildspartstore.com/v-slot-linear-rail/ (20mm X 40mm X ??)
    https://openbuildspartstore.com/v-slot-gantry-set/ (20mm X 80mm)

    stl’s can be found at:

    https://www.thingiverse.com/thing:2353694

    STEP files can be found:

    https://grabcad.com/library/openslider-motorized-camera-slider-1

    Arduino Sketch can be found:

    https://github.com/RJ-Make/OpenSlider

    The entire project is was designed around PETG, with the exception of all the mounts (Rail, Control Box, Battery and X Mount), which need to be printed in a stiff material (strong PLA or ABS.)

    Full list of Items needed be to purchased. You don’t need to purchases everything on this list, it just depends on what kind of Finnish you want for your slider.

    Be sure to check back with this list as I’m most certain I forgot some things..

    Uxcell 25Pcs Double Sided Protoboard https://tinyurl.com/yd4s38rc

    30Pcs 2 Pole 5mm Pitch PCB Mount Screw Terminal Block ttps://tinyurl.com/y8d84ga4

    Magnets For Refrigerator 6mm x 2mm https://tinyurl.com/y9l6rkln

    Elegoo MEGA 2560 R3 Board ATmega2560 ATMEGA16U2 https://tinyurl.com/ybmgu6fr

    uxcell 10 Pcs PCB Mount 5.5mmx2.1mm 3 Poles DC Power Connector Socket https://tinyurl.com/y7lnt5ll

    Gowoops 5PCS of Boost Converter Module XL6009 3-30V https://tinyurl.com/yc2l5ghm

    Display Development Tools TFT Resistive Touch Shield for Arduino https://tinyurl.com/ycee6tkx

    Aketek 10 Set Connector Male Female 4 Pin https://tinyurl.com/y9h2m66y

    CTYRZCH 5 PCS KY-040 Rotary Encoder Module Brick https://tinyurl.com/yab2upuj

    OctagonStar DRV8825 Stepper Motor Driver https://tinyurl.com/y9cxzgua

    Straight Round Shank 4.2mm Diameter Drilling Twist Drill Bit https://tinyurl.com/yc7hw3h7

    Forney 20857 Tap Magic Industrial Pro Cutting Fluid https://tinyurl.com/ybpe9kc4

    Tonsiki Adjustable M3-M8 3mm-8mm HSS T-Handle Reversible Ratchet Wrench Tapping Threading Tool https://tinyurl.com/y9vkpusg

    uxcell M6x12mm Stainless Steel Knurled Hex Socket Head https://tinyurl.com/y956w8fk

    Glarks 150Pcs M5 Stainless Steel Button Head Hex Socket https://tinyurl.com/y8l95lgf

    uxcell 20x Alloy Steel Knurl Socket Cap Head Hex Key Bolts Screws M5x20mm https://tinyurl.com/yaf67yh7

    FBApayipa 15 Pcs AC 6A/250V 10A/125V 2 Solder Lug SPST On/Off Mini Boat Rocker Switch https://tinyurl.com/y9ldxsqu

    E-accexpert® RGB Extension Cable Line 4 Color 20m https://tinyurl.com/y9rx8n3p

    Uxcell a16041200ux134?8 Flat Cable Wire Strain Relief Bush Grommet, 50 Piece, 15 mm Long https://tinyurl.com/yc4ozwjz

    SOLOOP 260 pcs Assortment Ratio 2:1 Environmentally Heat Shrink Tubing Wire Cable Wrap Sleeve https://tinyurl.com/y8aue9g8

    Linear Motion 8 mm Shaft, 330 mm Length https://tinyurl.com/y9emhoer

    3maker 5Pcs Aluminum GT2 20T Timing Pulley 8mm Bore https://tinyurl.com/y8ef4qk8

    5 Meters GT2 2mm pitch 6mm wide Timing Belt https://tinyurl.com/yaypmc7z

    Nema 17 Stepper Motor Bipolar 2A 59Ncm(84oz.in) 48mm Body 4-lead https://tinyurl.com/ycnlqplv

    uxcell M3x6mmx0.5mm Stainless Steel Round Flat Washer for Bolt Screw 100Pcs https://tinyurl.com/yapzrjdf

    Qunqi 5PCS Aluminum GT2 Timing Belt Pulley 20 Teeth Bore 5mm Width 6mm and Wrench https://tinyurl.com/y759ebvz

    Roll-In Spring M5 T Nut for 20mm T-Slot/V-Slot Aluminum Extrusions (Pack of 25) https://tinyurl.com/y8bgt6ru

    10 pcs New A3144 A3144E OH3144E 3144 Hall Effect Sensor https://tinyurl.com/y8joatu7

    uxcell 8mm Woodworking Drill Bit Depth Stop Collar Ring Locator Tool 5 Pcs https://tinyurl.com/ydel58x2

    Keep It Clean 14196 Wire Loom 3/8″ Black Ultra Wrap Wire Loom – 10 Feet https://tinyurl.com/ydfnhc69

    Jeremywell 608-2RS Ball Bearing 8mm x 22mm x 7mm Rubber Sealed Deep Groove, Width Double Sealed https://tinyurl.com/ydxjrty6

    ILED Battery Plate Adapter for SONY NP-F970 NP-F550 NP-F750 Li-battery with DC Diameter 2.5 Jumper Cable https://tinyurl.com/y9nuj6v9

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