Free shipping over €99 (Select Countries)

DE
EUR
EUR
GBP
Albania
Andorra
Armenia
Austria
Australia
Azerbaijan
Belarus
Belgium
Bosnia
Bulgaria
Croatia
Canada
Cyprus
Czech Republic
Denmark
Estonia
Finland
France
Georgia
Germany
Greece
Hungary
Iceland
India
Indonesia
Ireland
Israel
Italy
Jersey
Jordan
Kazakhstan
Kuwait
Latvia
Liechtenstein
Lithuania
Luxembourg
Macedonia
Malaysia
Malta
Moldova
Monaco
Montenegro
Netherlands
New Zealand
Norway
Oman
Pakistan
Philippines
Poland
Portugal
Qatar
Romania
Russia
San Marino
Saudi Arabia
Serbia
Singapore
Slovakia
Slovenia
South Korea
Spain
Sweden
Switzerland
Taiwan
Thailand
Turkey
Ukraine
United Arab Emirates
United Kingdom
United States
Vatican City
Vietnam

+31-30-8080557

Live Chat

Help

Community

Dubro 4-40 Steel Hex Nuts (4 Pack) DUB561
Dubro 4-40 Steel Hex Nuts (4 Pack) DUB561
Lade das Bild in den Galerie-Viewer, Dubro 4-40 Steel Hex Nuts (4 Pack) DUB561
Dubro 4-40 Steel Hex Nuts (4 Pack) DUB561
SKU: DUB561

Du-Bro 4-40 Steel Hex Nuts (4 Pack)

€129 (VAT inc.)
€129
€000
(Save €-1.29)
Ausverkauft

Select Product Format

Read more
In stock

Overview

4-40 Steel Hex Nuts (4 Pack) from Du-Bro - DUB561

Product Specifications:

Thread Size

4-40

Material

Steel

Color

Chrome

Q&A

Product questions & answers

NOTE: Questions submitted on this page are answered by customers who have previously purchased this item. If you have a support related question that requires immediate assistance, please visit our Help Center

Ask a Question
Customers who bought this item also bought

FlightLine FW-190 Main Landing Gear Doors

StarStarStarStarStar
1 review (5.0)

SKU: FLW204091

    €3 09

    VIEW PRODUCT

    FlightLine FW-190 Main Landing Gear DoorsFlightLine FW-190 Main Landing Gear Doors

    FlightLine FW-190 Scale Weapons and Small Plastic Parts Set

    StarStarStarStarStar
    0 reviews (0.0)

    SKU: FLW204095

      €8 39

      VIEW PRODUCT

      FlightLine FW-190 Scale Weapons and Small Plastic Parts SetFlightLine FW-190 Scale Weapons and Small Plastic Parts Set

      FlightLine FW-190 Horizontal Stabilizer

      StarStarStarStarStar
      0 reviews (0.0)

      SKU: FLW20403

        €18 09

        VIEW PRODUCT

        FlightLine FW-190 Horizontal StabilizerFlightLine FW-190 Horizontal Stabilizer

        FlightLine FW-190 Battery Hatch / Cockpit

        StarStarStarStarStar
        0 reviews (0.0)

        SKU: FLW20405

          €18 09

          VIEW PRODUCT

          FlightLine FW-190 Battery Hatch / CockpitFlightLine FW-190 Battery Hatch / Cockpit
          SKU: DUB561

          Du-Bro 4-40 Steel Hex Nuts (4 Pack)

          €129 (VAT inc.)
          €129
          €000
          (Save €-1.29)
          Ausverkauft

          Select Product Format

          Read more
          In stock
          Add To Wishlist

          Customer Reviews

          Customer Reviews
          0.0 Based on 0 Reviews
          5 ★
          0% 
          0
          4 ★
          0% 
          0
          3 ★
          0% 
          0
          2 ★
          0% 
          0
          1 ★
          0% 
          0
          Write a Review

          Thank you for submitting a review!

          Your input is very much appreciated. Share it with your friends so they can enjoy it too!

          Filter Reviews:
          102231
          Lemon 7-Channel DSMX Compatible Telemetry Receiver Gen 2.1 with Gyro Stabilization Product Image
          03/20/2025
          Lemon 7 channel Gen 2.1 with Gyro
          • Quality 5
          • Value for the Money 5
          • Ease of Use / Assembly 4
          • Performance 5
          Great receiver. Very easy to program with Spektrum nx8+ Motion You Tube video made it easy.
          William M.
          Lemon 7-Channel DSMX Compatible Telemetry Receiver Gen 2.1 with Gyro Stabilization
          Freewing Lippisch P.15 64mm EDF Jet - PNP Product Image
          03/20/2025
          First Purchase from Motion RCFa
          • Quality 5
          • Value for the Money 5
          • Ease of Use / Assembly 5
          • Performance 5
          Fast delivery, easy to deal with.
          Brent J.
          Freewing Lippisch P.15 64mm EDF Jet - PNP
          Admiral 450mAh 3S 11.1V 30C LiPo Battery with JST Connector Product Image
          03/19/2025
          Good battery
          • How would you rate the overall quality of the product? 5
          • How would you rate the value of the product for the money? 4
          • How difficult or easy is the product to assemble, use, or operate? 5
          • How well does the product perform / function? 5
          Good battery and delivery nuts on money
          Simo W.
          Admiral 450mAh 3S 11.1V 30C LiPo Battery with JST Connector
          Freewing PJ50 Private Jet Twin 70mm EDF Jet - PNP Product Image
          03/19/2025
          Awesome Scale Aircraft with Non-scale Flight Capabilities
          • Quality 5
          • Value for the Money 5
          • Ease of Use / Assembly 3
          • Performance 5
          The perfect blend between size, scale features, aerial presence and flight performance. It rolls, climbs, and loops no problem, but that kind of flight is NOT necessary to enjoy...read moreThe perfect blend between size, scale features, aerial presence and flight performance. It rolls, climbs, and loops no problem, but that kind of flight is NOT necessary to enjoy this model. Flying scale and with 300ft (looks super real off in the distance) and 10 - 20 ft show passes combined with realistic high alpha landings (nose up, touching the main gear first like real ones) is where this aircraft SHINES to me. Great Job Freewing! Although I’m not recommending flying in these conditions, the aerodynamics of this aircraft allow it to slice through 10 mph wind with 15-20 mph gusts no problem (I did this with gyro with aileron and elevator gains of 15%-20%). If you follow the instructions there is a high chance you need zero trim for stable flight.
          Donaghvan B.
          Freewing PJ50 Private Jet Twin 70mm EDF Jet - PNP
          Freewing 70mm 6S Hawk T1 Upgrade Nose Landing Gear Metal Strut Product Image
          03/19/2025
          Correct part fits my older BAe Hawk
          • How would you rate the overall quality of the product? 5
          • How would you rate the value of the product for the money? 5
          • How difficult or easy is the product to assemble, use, or operate? 5
          • How well does the product perform / function? 5
          Direct replacement for nose gear on my older BAe Hawk 70mm EDF Jet.
          Richard I.
          Freewing 70mm 6S Hawk T1 Upgrade Nose Landing Gear Metal Strut
          Freewing F-22 Raptor High Performance 90mm EDF Jet - PNP Product Image
          03/19/2025
          F-22 90mm
          • How would you rate the overall quality of the product? 4
          • How would you rate the value of the product for the money? 4
          • How difficult or easy is the product to assemble, use, or operate? 4
          • How well does the product perform / function? 4
          Very Nice good quality
          Bernard M.
          Freewing F-22 Raptor High Performance 90mm EDF Jet - PNP
          Lemon 10-Channel DSMX Compatible Telemetry Receiver with Gen 2.1 Gyro Stabilization Product Image
          03/19/2025
          7 Channel with built in stabilization
          • Quality 5
          • Value for the Money 5
          • Ease of Use / Assembly 5
          • Performance 5
          Easy to program and works great . I’ve used lemon receivers for years and haven’t had any problems that were caused by them. This is my first of the new models recently released,...read moreEasy to program and works great . I’ve used lemon receivers for years and haven’t had any problems that were caused by them. This is my first of the new models recently released, so far they have not let me down.
          Robert A.
          Lemon 10-Channel DSMX Compatible Telemetry Receiver with Gen 2.1 Gyro Stabilization
          FlightLine Fw 190 D-9 Dora 850mm (33") Wingspan - PNP Product Image
          03/19/2025
          Phenomenal value!
          • Quality 5
          • Value for the Money 5
          • Ease of Use / Assembly 5
          • Performance 5
          Other than the P-51 Lippisch, this has to be about the best value on the MotionRC site. Love to see more of these designs that save a servo (= $$$) by skipping the rudder. This...read moreOther than the P-51 Lippisch, this has to be about the best value on the MotionRC site. Love to see more of these designs that save a servo (= $$$) by skipping the rudder. This isn't a 3D machine, and it's so stable you really don't have to worry about coordinating turns, so it's not necessary. *Excellent* fit and finish. 3S is more than ample and makes the balance easy to nail. The smiles per dollar are hard to beat! NOTE: READ the update on the ESC - it's a very robust and feature-packed unit, but will confuse the uninitiated without the background, and may give the impression that there is an issue if you just try to bind it with your throttle set to minimum.
          Philip S.
          FlightLine Fw 190 D-9 Dora 850mm (33") Wingspan - PNP
          Admiral Pro 6000mAh 6S 22.2V 50C LiPo Battery with EC5 Connector Multi-Pack (2 Batteries) Product Image
          03/19/2025
          Quality, High Performers
          • Quality 5
          • Value for the Money 5
          • Ease of Use / Assembly 5
          • Performance 5
          Great so far! No issues at all. Works fantastic in my various EDFs.
          Todd B.
          Admiral Pro 6000mAh 6S 22.2V 50C LiPo Battery with EC5 Connector Multi-Pack (2 Batteries)
          Lemon 7-Channel DSMX Compatible Telemetry Receiver Gen 2.1 with Gyro Stabilization Product Image
          03/19/2025
          Lemon 7-Channel DSMX Compatible Telemetry Receiver Gen 2.1 with Gyro Stabilization
          • Quality 5
          • Value for the Money 5
          • Ease of Use / Assembly 3
          • Performance 5
          Good instructions with lots of info. The first receiver stopped working while setting up, but Motion RC sent me another for free! Set up nice and easy on my F-22.
          Aaron T.
          Lemon 7-Channel DSMX Compatible Telemetry Receiver Gen 2.1 with Gyro Stabilization
          Freewing F-22 Raptor 80mm EDF Jet with Gyro - PNP Product Image
          03/18/2025
          Best F-22 in my opinion.
          • Quality 5
          • Value for the Money 5
          • Ease of Use / Assembly 5
          • Performance 5
          This is my first jet from Freewing and my is it awesome. I wanted to get the 70mm because of its lower price, but I'm a scale sucker and I couldn't help myself. It's more...read moreThis is my first jet from Freewing and my is it awesome. I wanted to get the 70mm because of its lower price, but I'm a scale sucker and I couldn't help myself. It's more expensive, but it's so worth it, this thing looks so good! It's the only Raptor I own, but to me it's the greatest one Freewing has ever made.
          Jaediah G.
          Freewing F-22 Raptor 80mm EDF Jet with Gyro - PNP
          Freewing Universal Dual Tail Flame Afterburner LED Lights for Bifurcated 70/80/90mm EDF Jets Product Image
          03/18/2025
          Great Afterburner
          • Quality 5
          • Value for the Money 5
          • Ease of Use / Assembly 4
          • Performance 5
          Installed it in my F-22 80mm and it fits perfectly. It was pretty easy to get in and the end result is totally worth it. Super bright and hardly draws down the battery, not a real...read moreInstalled it in my F-22 80mm and it fits perfectly. It was pretty easy to get in and the end result is totally worth it. Super bright and hardly draws down the battery, not a real noticeable amount. Looks great I totally recommend.
          Jaediah G.
          Freewing Universal Dual Tail Flame Afterburner LED Lights for Bifurcated 70/80/90mm EDF Jets
          Black Horse 2350mm Gilmore Hardware Set Product Image
          03/18/2025
          Redlion gillmore
          • How would you rate the overall quality of the product? 5
          • How would you rate the value of the product for the money? 5
          • How difficult or easy is the product to assemble, use, or operate? 5
          • How well does the product perform / function? 5
          Very good service like your goods thanks
          Ron D.
          Black Horse 2350mm Gilmore Hardware Set
          Du-Bro Kwik Fill Fuel Pump (Gas and Glo) Product Image
          03/18/2025
          Gas pump
          • How would you rate the overall quality of the product? 5
          • How would you rate the value of the product for the money? 5
          • How difficult or easy is the product to assemble, use, or operate? 5
          • How well does the product perform / function? 5
          Worked great at a good price
          PRESTON L.
          Du-Bro Kwik Fill Fuel Pump (Gas and Glo)
          Heng Long USA M4A3 Sherman Upgrade Edition 1/16 Scale Battle Tank - RTR Product Image
          03/18/2025
          Sherman Upgrade Edition
          • How would you rate the overall quality of the product? 5
          • How would you rate the value of the product for the money? 5
          • How difficult or easy is the product to assemble, use, or operate? 5
          • How well does the product perform / function? 5
          Everything I was hoping for.
          Robert S.
          Heng Long USA M4A3 Sherman Upgrade Edition 1/16 Scale Battle Tank - RTR
          RotorScale UH-60 Coast Guard 220 Size GPS Stabilized Helicopter - RTF Product Image
          03/18/2025
          Jim White
          • How would you rate the overall quality of the product? 4
          • How would you rate the value of the product for the money? 5
          • How difficult or easy is the product to assemble, use, or operate? 5
          • How well does the product perform / function? 5
          It flys like a dream! Let go of all the controls and it hovers. Very easy to fly!
          jim w.
          RotorScale UH-60 Coast Guard 220 Size GPS Stabilized Helicopter - RTF
          Hobby Plus CR18P Blue Arktos 1/18 Scale 6x6 Flatbed Truck - RTR Product Image
          03/18/2025
          Awesome truck with tons of features
          • Quality 5
          • Value for the Money 5
          • Ease of Use / Assembly 5
          • Performance 5
          Everything about this truck is great. Several lighting modes, working blinkers & hazard lights with reverse lights. Working winch with slide out ramps for the flat bed....read moreEverything about this truck is great. Several lighting modes, working blinkers & hazard lights with reverse lights. Working winch with slide out ramps for the flat bed. Recommend using some hair bands to secure the front wheels of the vehicle on the truck bed.
          Byron B.
          Hobby Plus CR18P Blue Arktos 1/18 Scale 6x6 Flatbed Truck - RTR
          Freewing Vulcan High Performance 70mm EDF Sport Jet - PNP Product Image
          03/18/2025
          Vulcan HP 70mm Jet
          • How would you rate the overall quality of the product? 5
          • How would you rate the value of the product for the money? 5
          • How difficult or easy is the product to assemble, use, or operate? 4
          • How well does the product perform / function? 5
          This is a beautiful plane. I am surprised that it isn't a best seller. It went together well and the simple paint scheme allows for easy customization.
          Frank D.
          Freewing Vulcan High Performance 70mm EDF Sport Jet - PNP
          Freewing Universal Dual Tail Flame Afterburner LED Lights for Bifurcated 70/80/90mm EDF Jets Product Image
          03/18/2025
          Great product at a great price
          • Quality 5
          • Value for the Money 5
          • Ease of Use / Assembly 5
          • Performance 5
          MotionRC is the absolute leader on the foam rc plane market. Their products are very high quality, competitively priced and always fast shipping. The twin afterburner is no...read moreMotionRC is the absolute leader on the foam rc plane market. Their products are very high quality, competitively priced and always fast shipping. The twin afterburner is no exception. I purchased this one to add to my new 80mm F22. Perfect fit and the price is better than any other afterburner on the market. All of this with no reduction in quality.
          John M.
          Freewing Universal Dual Tail Flame Afterburner LED Lights for Bifurcated 70/80/90mm EDF Jets
          RotorScale BO-105 100 Size Gyro Stabilized Helicopter - RTF Product Image
          03/18/2025
          BO 105
          • Quality 5
          • Value for the Money 5
          • Ease of Use / Assembly 5
          • Performance 4
          Gift for my son, waiting for low wind day to fly.
          Mark S.
          RotorScale BO-105 100 Size Gyro Stabilized Helicopter - RTF
          Freewing Nose Gear Steering Arm N527 Product Image
          03/18/2025
          Landing gear
          • How would you rate the overall quality of the product? 5
          • How would you rate the value of the product for the money? 5
          • How difficult or easy is the product to assemble, use, or operate? 4
          • How well does the product perform / function? 5
          It was an exact replacement for the damaged one that I needed to replace.
          Roy P.
          Freewing Nose Gear Steering Arm N527
          BenchCraft 7S Digital Battery Checker and Balancer Product Image
          03/18/2025
          A++++
          • Quality 5
          • Value for the Money 5
          • Ease of Use / Assembly 5
          • Performance 5
          Super fast shipping items as described. Will buy again
          Chris N.
          BenchCraft 7S Digital Battery Checker and Balancer
          Product Image
          03/18/2025
          The beautiful bluebird!
          • Quality 5
          • Value for the Money 5
          • Ease of Use / Assembly 5
          • Performance 5
          This is a fantastic plane! My first EDF from motion RC. Go together beautifully with no glue required full elevator stabs in an outstanding overall quality product. By the...read moreThis is a fantastic plane! My first EDF from motion RC. Go together beautifully with no glue required full elevator stabs in an outstanding overall quality product. By the upgraded gear for the 6S model and you're set. The only thing I did is this baby was clear coat and paint the rockets to match the color scheme. The gyro system is really unique no annoying beeps just A nice bright blue and green light letting you know which mode you're in. Very impressed!!!!
          Edward C.
          Skynetic Piaget II 3D 822mm (33.2") Wingspan - ARF BUNDLE Product Image
          03/18/2025
          Great plane
          • Quality 5
          • Value for the Money 5
          • Ease of Use / Assembly 3
          • Performance 3
          It went together well. But the weather has been to windy to fly yet
          joel T.
          Skynetic Piaget II 3D 822mm (33.2") Wingspan - ARF BUNDLE
          Admiral 1300mAh 3S 11.1V 25C LiPo Battery with XT60 Connector Product Image
          03/18/2025
          New Lipo battery for my Great Planes Sopwith Camelbi-plane
          • How would you rate the overall quality of the product? 5
          • How would you rate the value of the product for the money? 5
          • How difficult or easy is the product to assemble, use, or operate? 5
          • How well does the product perform / function? 5
          Excellent product with a good representation. Performs better than expected. I'm one happy camper, thank you.
          James L.
          Admiral 1300mAh 3S 11.1V 25C LiPo Battery with XT60 Connector
          BenchCraft 37mm (1.4") Civil Pilot Figure - Blue Product Image
          03/18/2025
          Pilots
          • Quality 5
          • Value for the Money 5
          • Ease of Use / Assembly 5
          • Performance 5
          Great for my beer can bi- planes
          Rick G.
          BenchCraft 37mm (1.4") Civil Pilot Figure - Blue
          Freewing 80mm EDF A-10 100A Dual ESC (2) Product Image
          03/18/2025
          Replacement / Spare
          • How would you rate the overall quality of the product? 5
          • How would you rate the value of the product for the money? 4
          • How difficult or easy is the product to assemble, use, or operate? 5
          • How well does the product perform / function? 5
          Needed to have a replacement set / spare set in my "toy box" for the A-10. Shipping was fast (as usual). I tested them and they are exactly as described.
          Larry D.
          Freewing 80mm EDF A-10 100A Dual ESC (2)
          Nexa 2108mm P-38 Lightning Olive Drab Tail Set Product Image
          03/18/2025
          Great, love it…
          • Quality 5
          • Value for the Money 5
          • Ease of Use / Assembly 5
          • Performance 5
          Great… love it, would buy again!!!
          Gary P.
          Nexa 2108mm P-38 Lightning Olive Drab Tail Set
          Bancroft 1/150 Scale USS Missouri Propeller Set - Left Product Image
          03/18/2025
          PERFECT!!!
          • How would you rate the overall quality of the product? 5
          • How would you rate the value of the product for the money? 5
          • How difficult or easy is the product to assemble, use, or operate? 5
          • How well does the product perform / function? 5
          My USS Missouri was way better than expected... You could put it in a case in a museum... HIGHLY detailed... Tons of photo etched parts...That's how detail this model actually...read moreMy USS Missouri was way better than expected... You could put it in a case in a museum... HIGHLY detailed... Tons of photo etched parts...That's how detail this model actually is... Web site picture does no do it justice... Would buy again... THANX
          Rodney S.
          Bancroft 1/150 Scale USS Missouri Propeller Set - Left
          BenchCraft 6mm x 4mm(ID) Hollow Carbon Fiber Tube (1 Meter) Product Image
          03/18/2025
          BenchCraft 6mm x 4mm(ID) Hollow Carbon Fiber Tube
          • Quality 5
          • Value for the Money 5
          • Ease of Use / Assembly 5
          • Performance 5
          These worked great for repairing avantiS wing spar slipping it inside the 8x6 that I trimmed off and a piece over it and a little glue it’s like new
          Jeffrey S.
          BenchCraft 6mm x 4mm(ID) Hollow Carbon Fiber Tube (1 Meter)
          Customers who bought this item also bought

          FlightLine FW-190 Main Landing Gear Doors

          StarStarStarStarStar
          1 review (5.0)

          SKU: FLW204091

            €3 09

            VIEW PRODUCT

            FlightLine FW-190 Main Landing Gear DoorsFlightLine FW-190 Main Landing Gear Doors

            FlightLine FW-190 Scale Weapons and Small Plastic Parts Set

            StarStarStarStarStar
            0 reviews (0.0)

            SKU: FLW204095

              €8 39

              VIEW PRODUCT

              FlightLine FW-190 Scale Weapons and Small Plastic Parts SetFlightLine FW-190 Scale Weapons and Small Plastic Parts Set

              FlightLine FW-190 Horizontal Stabilizer

              StarStarStarStarStar
              0 reviews (0.0)

              SKU: FLW20403

                €18 09

                VIEW PRODUCT

                FlightLine FW-190 Horizontal StabilizerFlightLine FW-190 Horizontal Stabilizer

                FlightLine FW-190 Battery Hatch / Cockpit

                StarStarStarStarStar
                0 reviews (0.0)

                SKU: FLW20405

                  €18 09

                  VIEW PRODUCT

                  FlightLine FW-190 Battery Hatch / CockpitFlightLine FW-190 Battery Hatch / Cockpit
                  • Overview
                  • Q&A

                  Du-Bro 4-40 Steel Hex Nuts (4 Pack)

                  ARF BUNDLE - ARF plus Electronics - $219.00

                  €129 (VAT inc.)
                  €129
                  €000
                  (Save €-1.29)
                  Ausverkauft
                  mgctlbxN$MZP mgctlbxV$5.3.7 mgctlbxL$C