Buy round head M4x20 metal screw at Autoservice      = 170" class="bg-white text-gray-800 antialiased" id="pg-952" >   [    webshop@auto-service.be ](mailto:webshop@auto-service.be) [   +32 55 31 48 05 ](tel:+3255314805) 

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  [ { setTimeout(() => { $refs.navitem169.scrollIntoView({ behavior: 'smooth', block: 'start' }); }, 300); }); }" class="relative z-30 flex items-center p-4 text-center text-gray-700 transition-colors duration-200 ease-out lg:h-full lg:border-b-4 lg:px-0 lg:pt-\[4px\] lg:pb-0 lg:text-xs lg:font-medium lg:text-gray-800 lg:focus:border-b-primary xl:text-sm 2xl:text-base lg:border-b-transparent lg:hover:border-b-gray-300" > Car Cleaning      

 ](https://www.auto-service.be/en/car-cleaning) **Car Cleaning** 

 [    ![Car Shampoo](https://www.auto-service.be/assets/media/30734/conversions/autoshampoo-navthumb.jpg)  

 Car Shampoo 

 ](https://www.auto-service.be/en/car-cleaning/car-shampoo) [    ![Exterior](https://www.auto-service.be/assets/media/30740/conversions/exterieur-navthumb.jpg)  

 Exterior 

 ](https://www.auto-service.be/en/car-cleaning/exterior) [    ![Interior](https://www.auto-service.be/assets/media/30732/conversions/interieur-navthumb.jpg)  

 Interior 

 ](https://www.auto-service.be/en/car-cleaning/interior) [    ![Leather upholstery](https://www.auto-service.be/assets/media/30721/conversions/lederen-bekleding-navthumb.jpg)  

 Leather upholstery 

 ](https://www.auto-service.be/en/car-cleaning/leather-upholstery) [    ![Rims & tires](https://www.auto-service.be/assets/media/30719/conversions/velgen-banden-navthumb.jpg)  

 Rims & tires 

 ](https://www.auto-service.be/en/car-cleaning/rims-tires) [    ![Windows](https://www.auto-service.be/assets/media/30715/conversions/ruiten-navthumb.jpg)  

 Windows 

 ](https://www.auto-service.be/en/car-cleaning/windows) [    ![Wax & protect](https://www.auto-service.be/assets/media/30713/conversions/wax-protect-navthumb.jpg)  

 Wax & protect 

 ](https://www.auto-service.be/en/car-cleaning/wax-protect) [    ![Scratch treatment](https://www.auto-service.be/assets/media/30711/conversions/krasbehandeling-navthumb.jpg)  

 Scratch treatment 

 ](https://www.auto-service.be/en/car-cleaning/scratch-treatment) [    ![Polishing](https://www.auto-service.be/assets/media/30717/conversions/polijsten-navthumb.jpg)  

 Polishing 

 ](https://www.auto-service.be/en/car-cleaning/polishing) [    ![Accessories](https://www.auto-service.be/assets/media/30709/conversions/toebehoren-navthumb.jpg)  

 Accessories 

 ](https://www.auto-service.be/en/car-cleaning/accessories) [    ![Kits](https://www.auto-service.be/assets/media/30668/conversions/kits-navthumb.jpg)  

 Kits 

 ](https://www.auto-service.be/en/car-cleaning/kits) 

 [ { setTimeout(() => { $refs.navitem260.scrollIntoView({ behavior: 'smooth', block: 'start' }); }, 300); }); }" class="relative z-30 flex items-center p-4 text-center text-gray-700 transition-colors duration-200 ease-out lg:h-full lg:border-b-4 lg:px-0 lg:pt-\[4px\] lg:pb-0 lg:text-xs lg:font-medium lg:text-gray-800 lg:focus:border-b-primary xl:text-sm 2xl:text-base lg:border-b-transparent lg:hover:border-b-gray-300" > Luggage & Transport      

 ](https://www.auto-service.be/en/luggage-transport) **Luggage & Transport** 

 [    ![Bike carriers](https://www.auto-service.be/assets/media/25667/conversions/fietsendragers-navthumb.jpg)  

 Bike carriers 

 ](https://www.auto-service.be/en/luggage-transport/bike-carriers) [    ![Roof box](https://www.auto-service.be/assets/media/25666/conversions/dakkoffer-navthumb.jpg)  

 Roof box 

 ](https://www.auto-service.be/en/luggage-transport/roof-box) [    ![Roof rack](https://www.auto-service.be/assets/media/25668/conversions/dakdrager-navthumb.jpg)  

 Roof rack 

 ](https://www.auto-service.be/en/luggage-transport/roof-rack) [    ![Trailer accessories](https://www.auto-service.be/assets/media/18910/conversions/aanhangwagen-accessoires-navthumb.jpg)  

 Trailer accessories 

 ](https://www.auto-service.be/en/luggage-transport/trailer-accessories) [    ![Trailer lighting](https://www.auto-service.be/assets/media/18912/conversions/verlichting-aanhangwagen-navthumb.jpg)  

 Trailer lighting 

 ](https://www.auto-service.be/en/luggage-transport/trailer-lighting) [    ![Work & flashing lights](https://www.auto-service.be/assets/media/27547/conversions/werk-zwaailichten-navthumb.jpg)  

 Work & flashing lights 

 ](https://www.auto-service.be/en/luggage-transport/work-flashing-lights) [    ![Tire Material](https://www.auto-service.be/assets/media/33955/conversions/bandenmateriaal-navthumb.jpg)  

 Tire Material 

 ](https://www.auto-service.be/en/luggage-transport/tire-material) [    ![Towbar cargo boxes](https://www.auto-service.be/assets/media/27537/conversions/trekhaak-koffers-navthumb.jpg)  

 Towbar cargo boxes 

 ](https://www.auto-service.be/en/luggage-transport/towbar-cargo-boxes) [    ![Breakdown underway](https://www.auto-service.be/assets/media/28234/conversions/pech-onderweg-navthumb.jpg)  

 Breakdown underway 

 ](https://www.auto-service.be/en/luggage-transport/breakdown-underway) 

 [ { setTimeout(() => { $refs.navitem350.scrollIntoView({ behavior: 'smooth', block: 'start' }); }, 300); }); }" class="relative z-30 flex items-center p-4 text-center text-gray-700 transition-colors duration-200 ease-out lg:h-full lg:border-b-4 lg:px-0 lg:pt-\[4px\] lg:pb-0 lg:text-xs lg:font-medium lg:text-gray-800 lg:focus:border-b-primary xl:text-sm 2xl:text-base lg:border-b-transparent lg:hover:border-b-gray-300" > Tools      

 ](https://www.auto-service.be/en/tools) **Tools** 

 [    ![Special for automotive](https://www.auto-service.be/assets/media/30649/conversions/speciaal-voor-automobiel-navthumb.jpg)  

 Special for automotive 

 ](https://www.auto-service.be/en/tools/special-for-automotive) [    ![Garage equipment](https://www.auto-service.be/assets/media/30651/conversions/garage-uitrusting-navthumb.jpg)  

 Garage equipment 

 ](https://www.auto-service.be/en/tools/garage-equipment) [    ![Tool trolleys](https://www.auto-service.be/assets/media/28145/conversions/gereedschapswagens-navthumb.jpg)  

 Tool trolleys 

 ](https://www.auto-service.be/en/tools/tool-trolleys) [    ![Tool walls](https://www.auto-service.be/assets/media/29435/conversions/werkplaatsinrichting-navthumb.jpg)  

 Tool walls 

 ](https://www.auto-service.be/en/tools/tool-walls) [    ![Lift bridges](https://www.auto-service.be/assets/media/18946/conversions/hefbruggen-navthumb.jpg)  

 Lift bridges 

 ](https://www.auto-service.be/en/tools/lift-bridges) [    ![Workshop press](https://www.auto-service.be/assets/media/27374/conversions/werkplaatspersen-navthumb.jpg)  

 Workshop press 

 ](https://www.auto-service.be/en/tools/workshop-press) [    ![Air conditioning](https://www.auto-service.be/assets/media/26086/conversions/airco-techniek-navthumb.jpg)  

 Air conditioning 

 ](https://www.auto-service.be/en/tools/air-conditioning) [    ![Hand Tools](https://www.auto-service.be/assets/media/30666/conversions/handgereedschap-navthumb.jpg)  

 Hand Tools 

 ](https://www.auto-service.be/en/tools/hand-tools) [    ![Impact Sockets](https://www.auto-service.be/assets/media/30661/conversions/krachtdoppen-navthumb.jpg)  

 Impact Sockets 

 ](https://www.auto-service.be/en/tools/impact-sockets) [    ![Sockets and bits](https://www.auto-service.be/assets/media/30659/conversions/doppen-en-bits-navthumb.jpg)  

 Sockets and bits 

 ](https://www.auto-service.be/en/tools/sockets-and-bits) [    ![Electric](https://www.auto-service.be/assets/media/30643/conversions/elektrisch-navthumb.jpg)  

 Electric 

 ](https://www.auto-service.be/en/tools/electric) [    ![Pneumatic](https://www.auto-service.be/assets/media/30645/conversions/pneumatisch-navthumb.jpg)  

 Pneumatic 

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 Battery powered tools 

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 Cleaning machines 

 ](https://www.auto-service.be/en/tools/cleaning-machines) [    ![High-voltage tools](https://www.auto-service.be/assets/media/35493/conversions/hoogspanningsgereedschap-navthumb.jpg)  

 High-voltage tools 

 ](https://www.auto-service.be/en/tools/high-voltage-tools) [    ![Sandblasting](https://www.auto-service.be/assets/media/18938/conversions/zandstralen-navthumb.jpg)  

 Sandblasting 

 ](https://www.auto-service.be/en/tools/sandblasting) [    ![Ultrasonic cleaners](https://www.auto-service.be/assets/media/18940/conversions/ultrasoon-reinigers-navthumb.jpg)  

 Ultrasonic cleaners 

 ](https://www.auto-service.be/en/tools/ultrasonic-cleaners) [    ![Degreaser Bins](https://www.auto-service.be/assets/media/18942/conversions/ontvetterbakken-navthumb.jpg)  

 Degreaser Bins 

 ](https://www.auto-service.be/en/tools/degreaser-bins) [    ![Battery chargers and boosters](https://www.auto-service.be/assets/media/30653/conversions/batterijladers-en-starthulp-navthumb.jpg)  

 Battery chargers and boosters 

 ](https://www.auto-service.be/en/tools/battery-chargers-and-boosters) [    ![Garage Management](https://www.auto-service.be/assets/media/30628/conversions/garagebeheer-navthumb.jpg)  

 Garage Management 

 ](https://www.auto-service.be/en/tools/garage-management) [    ![Workwear and protection](https://www.auto-service.be/assets/media/32673/conversions/werkkledij-en-bescherming-navthumb.jpg)  

 Workwear and protection 

 ](https://www.auto-service.be/en/tools/workwear-and-protection) [    ![Lifting equipment](https://www.auto-service.be/assets/media/40056/conversions/hijsmateriaal-navthumb.jpg)  

 Lifting equipment 

 ](https://www.auto-service.be/en/tools/lifting-equipment) 

 [ { setTimeout(() => { $refs.navitem539.scrollIntoView({ behavior: 'smooth', block: 'start' }); }, 300); }); }" class="relative z-30 flex items-center p-4 text-center text-gray-700 transition-colors duration-200 ease-out lg:h-full lg:border-b-4 lg:px-0 lg:pt-\[4px\] lg:pb-0 lg:text-xs lg:font-medium lg:text-gray-800 lg:focus:border-b-primary xl:text-sm 2xl:text-base lg:border-b-transparent lg:hover:border-b-gray-300" > Bodywork      

 ](https://www.auto-service.be/en/bodywork) **Bodywork** 

 [    ![Preparation](https://www.auto-service.be/assets/media/18948/conversions/voorbereiding-navthumb.jpg)  

 Preparation 

 ](https://www.auto-service.be/en/bodywork/preparation) [    ![Sanding](https://www.auto-service.be/assets/media/18950/conversions/schuren-navthumb.jpg)  

 Sanding 

 ](https://www.auto-service.be/en/bodywork/sanding) [    ![Filling](https://www.auto-service.be/assets/media/18952/conversions/plamuren-navthumb.jpg)  

 Filling 

 ](https://www.auto-service.be/en/bodywork/filling) [    ![Anti-rust protection](https://www.auto-service.be/assets/media/25569/conversions/anti-roest-bescherming-navthumb.jpg)  

 Anti-rust protection 

 ](https://www.auto-service.be/en/bodywork/anti-rust-protection) [    ![Paint](https://www.auto-service.be/assets/media/25570/conversions/verf-navthumb.jpg)  

 Paint 

 ](https://www.auto-service.be/en/bodywork/paint) [    ![Spray cans](https://www.auto-service.be/assets/media/18958/conversions/spuitbussen-navthumb.jpg)  

 Spray cans 

 ](https://www.auto-service.be/en/bodywork/spray-cans) [    ![Spray guns & accessories](https://www.auto-service.be/assets/media/25600/conversions/spuitpistolen-toebehoren-navthumb.jpg)  

 Spray guns & accessories 

 ](https://www.auto-service.be/en/bodywork/spray-guns-accessories) [    ![Windshield replacement](https://www.auto-service.be/assets/media/30744/conversions/autoruit-vervangen-navthumb.jpg)  

 Windshield replacement 

 ](https://www.auto-service.be/en/bodywork/windshield-replacement) [    ![Adhesives & silicones](https://www.auto-service.be/assets/media/30745/conversions/lijmen-siliconen-navthumb.jpg)  

 Adhesives & silicones 

 ](https://www.auto-service.be/en/bodywork/adhesives-silicones) [    ![Welding equipment](https://www.auto-service.be/assets/media/18966/conversions/lasmateriaal-navthumb.jpg)  

 Welding equipment 

 ](https://www.auto-service.be/en/bodywork/welding-equipment) [    ![Grinding & Drilling](https://www.auto-service.be/assets/media/25573/conversions/slijpen-boren-navthumb.jpg)  

 Grinding & Drilling 

 ](https://www.auto-service.be/en/bodywork/grinding-drilling) [    ![Mounting Clips](https://www.auto-service.be/assets/media/25574/conversions/bevestigingsclips-navthumb.jpg)  

 Mounting Clips 

 ](https://www.auto-service.be/en/bodywork/mounting-clips) [    ![Body repair tools](https://www.auto-service.be/assets/media/27126/conversions/carrosserie-gereedschap-navthumb.jpg)  

 Body repair tools 

 ](https://www.auto-service.be/en/bodywork/body-repair-tools) [    ![Spray Booth](https://www.auto-service.be/assets/media/33629/conversions/spuitcabine-navthumb.jpg)  

 Spray Booth 

 ](https://www.auto-service.be/en/bodywork/spray-booth) 

 [ { setTimeout(() => { $refs.navitem689.scrollIntoView({ behavior: 'smooth', block: 'start' }); }, 300); }); }" class="relative z-30 flex items-center p-4 text-center text-gray-700 transition-colors duration-200 ease-out lg:h-full lg:border-b-4 lg:px-0 lg:pt-\[4px\] lg:pb-0 lg:text-xs lg:font-medium lg:text-gray-800 lg:focus:border-b-primary xl:text-sm 2xl:text-base lg:border-b-transparent lg:hover:border-b-gray-300" > Electrical      

 ](https://www.auto-service.be/en/electrical) **Electrical** 

 [    ![Cable protection](https://www.auto-service.be/assets/media/18972/conversions/kabelbescherming-navthumb.jpg)  

 Cable protection 

 ](https://www.auto-service.be/en/electrical/cable-protection) [    ![Battery charging clamps](https://www.auto-service.be/assets/media/18974/conversions/accu-laadklemmen-navthumb.jpg)  

 Battery charging clamps 

 ](https://www.auto-service.be/en/electrical/battery-charging-clamps) [    ![Battery terminal](https://www.auto-service.be/assets/media/25675/conversions/accupoolklemmen-navthumb.jpg)  

 Battery terminal 

 ](https://www.auto-service.be/en/electrical/battery-terminal) [    ![Connectors](https://www.auto-service.be/assets/media/18978/conversions/connectoren-navthumb.jpg)  

 Connectors 

 ](https://www.auto-service.be/en/electrical/connectors) [    ![Insulated cable lugs](https://www.auto-service.be/assets/media/25674/conversions/geisoleerde-kabelschoenen-navthumb.jpg)  

 Insulated cable lugs 

 ](https://www.auto-service.be/en/electrical/insulated-cable-lugs) [    ![Non-insulated terminal lugs](https://www.auto-service.be/assets/media/18982/conversions/ongeisoleerde-kabelschoenen-navthumb.jpg)  

 Non-insulated terminal lugs 

 ](https://www.auto-service.be/en/electrical/non-insulated-terminal-lugs) [    ![Cables](https://www.auto-service.be/assets/media/18984/conversions/kabels-navthumb.jpg)  

 Cables 

 ](https://www.auto-service.be/en/electrical/cables) [    ![Crimp Connectors](https://www.auto-service.be/assets/media/25676/conversions/krimpverbinders-navthumb.jpg)  

 Crimp Connectors 

 ](https://www.auto-service.be/en/electrical/crimp-connectors) [    ![Mass Strips](https://www.auto-service.be/assets/media/18988/conversions/massastrips-navthumb.jpg)  

 Mass Strips 

 ](https://www.auto-service.be/en/electrical/mass-strips) [    ![Relay](https://www.auto-service.be/assets/media/18990/conversions/relais-navthumb.jpg)  

 Relay 

 ](https://www.auto-service.be/en/electrical/relay) [    ![Switches & control lights](https://www.auto-service.be/assets/media/18992/conversions/schakelaars-controle-lichtjes-navthumb.jpg)  

 Switches & control lights 

 ](https://www.auto-service.be/en/electrical/switches-control-lights) [    ![Fuses](https://www.auto-service.be/assets/media/18994/conversions/zekeringen-navthumb.jpg)  

 Fuses 

 ](https://www.auto-service.be/en/electrical/fuses) [    ![Tools](https://www.auto-service.be/assets/media/25677/conversions/tools-navthumb.jpg)  

 Tools 

 ](https://www.auto-service.be/en/electrical/tools) 

 [ { setTimeout(() => { $refs.navitem809.scrollIntoView({ behavior: 'smooth', block: 'start' }); }, 300); }); }" class="relative z-30 flex items-center p-4 text-center text-gray-700 transition-colors duration-200 ease-out lg:h-full lg:border-b-4 lg:px-0 lg:pt-\[4px\] lg:pb-0 lg:text-xs lg:font-medium lg:text-gray-800 lg:focus:border-b-primary xl:text-sm 2xl:text-base lg:border-b-transparent lg:hover:border-b-gray-300" > Parts      

 ](https://www.auto-service.be/en/parts) **Parts** 

 [    ![Hose clamps](https://www.auto-service.be/assets/media/18998/conversions/slangklemmen-navthumb.jpg)  

 Hose clamps 

 ](https://www.auto-service.be/en/parts/hose-clamps) [    ![Hoses](https://www.auto-service.be/assets/media/19000/conversions/slangen-navthumb.jpg)  

 Hoses 

 ](https://www.auto-service.be/en/parts/hoses) [    ![Hose connections](https://www.auto-service.be/assets/media/25678/conversions/slangverbindingen-navthumb.jpg)  

 Hose connections 

 ](https://www.auto-service.be/en/parts/hose-connections) [    ![Brakes](https://www.auto-service.be/assets/media/25679/conversions/remmen-navthumb.jpg)  

 Brakes 

 ](https://www.auto-service.be/en/parts/brakes) [    ![Dust covers](https://www.auto-service.be/assets/media/25693/conversions/stofhoezen-navthumb.jpg)  

 Dust covers 

 ](https://www.auto-service.be/en/parts/dust-covers) [    ![Gaskets](https://www.auto-service.be/assets/media/25680/conversions/pakkingen-navthumb.jpg)  

 Gaskets 

 ](https://www.auto-service.be/en/parts/gaskets) [    ![Exhaust accessories](https://www.auto-service.be/assets/media/25681/conversions/uitlaat-toebehoren-navthumb.jpg)  

 Exhaust accessories 

 ](https://www.auto-service.be/en/parts/exhaust-accessories) [    ![Windshield Wipers](https://www.auto-service.be/assets/media/25682/conversions/ruitenwissers-navthumb.jpg)  

 Windshield Wipers 

 ](https://www.auto-service.be/en/parts/windshield-wipers) [    ![Batteries](https://www.auto-service.be/assets/media/19016/conversions/batteriijen-navthumb.jpg)  

 Batteries 

 ](https://www.auto-service.be/en/parts/batteries) [    ![Ignition System](https://www.auto-service.be/assets/media/27143/conversions/ontstekingssysteem-navthumb.jpg)  

 Ignition System 

 ](https://www.auto-service.be/en/parts/ignition-system) 

 [ { setTimeout(() => { $refs.navitem894.scrollIntoView({ behavior: 'smooth', block: 'start' }); }, 300); }); }" class="relative z-30 flex items-center p-4 text-center text-gray-700 transition-colors duration-200 ease-out lg:h-full lg:border-b-4 lg:px-0 lg:pt-\[4px\] lg:pb-0 lg:text-xs lg:font-medium lg:text-gray-800 lg:focus:border-b-primary xl:text-sm 2xl:text-base lg:border-b-gray-700" > Fasteners      

 ](https://www.auto-service.be/en/fasteners) **Fasteners** 

 [    ![Assortments](https://www.auto-service.be/assets/media/25683/conversions/assortimenten-navthumb.jpg)  

 Assortments 

 ](https://www.auto-service.be/en/fasteners/assortments) [    ![Blind rivets](https://www.auto-service.be/assets/media/25684/conversions/blindklinknagels-navthumb.jpg)  

 Blind rivets 

 ](https://www.auto-service.be/en/fasteners/blind-rivets) [    ![Blind rivet nuts](https://www.auto-service.be/assets/media/19022/conversions/blindklinkmoeren-navthumb.jpg)  

 Blind rivet nuts 

 ](https://www.auto-service.be/en/fasteners/blind-rivet-nuts) [    ![Bolts](https://www.auto-service.be/assets/media/25685/conversions/bouten-navthumb.jpg)  

 Bolts 

 ](https://www.auto-service.be/en/fasteners/bolts) [    ![Nuts](https://www.auto-service.be/assets/media/19026/conversions/moeren-navthumb.jpg)  

 Nuts 

 ](https://www.auto-service.be/en/fasteners/nuts) [    ![Rings](https://www.auto-service.be/assets/media/25686/conversions/ringen-navthumb.jpg)  

 Rings 

 ](https://www.auto-service.be/en/fasteners/rings) [    ![Screws](https://www.auto-service.be/assets/media/25687/conversions/schroeven-navthumb.jpg)  

 Screws 

 ](https://www.auto-service.be/en/fasteners/screws) [    ![Threaded rods](https://www.auto-service.be/assets/media/25688/conversions/draadstangen-navthumb.jpg)  

 Threaded rods 

 ](https://www.auto-service.be/en/fasteners/threaded-rods) [    ![Plate nuts and plate bolts](https://www.auto-service.be/assets/media/19034/conversions/plaatmoeren-en-plaatbouten-navthumb.jpg)  

 Plate nuts and plate bolts 

 ](https://www.auto-service.be/en/fasteners/plate-nuts-and-plate-bolts) [    ![Split pins](https://www.auto-service.be/assets/media/25689/conversions/splitpennen-navthumb.jpg)  

 Split pins 

 ](https://www.auto-service.be/en/fasteners/split-pins) [    ![Cable Ties](https://www.auto-service.be/assets/media/25690/conversions/kabelbinders-navthumb.jpg)  

 Cable Ties 

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  **METAL SCREW ROUND HEAD PHILIPS DRIVE ELECTROLYTICALLY GALVANIZED M4X20 (20 PIECES)** 

SIN-U4-20

 [ 

      ![Metal screw round head Philips drive electrolytically galvanized M4x20 (20 pieces)](https://www.auto-service.be/assets/media/9819/conversions/metaalschroef-bolkop-philipsdrive-electrolitisch-verzinkt-m4x20-20st-11119-prod_lg.jpg "Metal screw round head Philips drive electrolytically galvanized M4x20 (20 pieces)")  

 ](https://www.auto-service.be/assets/media/9819/conversions/metaalschroef-bolkop-philipsdrive-electrolitisch-verzinkt-m4x20-20st-11119-optimized.jpg) 

#  METAL SCREW ROUND HEAD PHILIPS DRIVE ELECTROLYTICALLY GALVANIZED M4X20 (20 PIECES) 

 SIN-U4-20 

##  M4x20 metal screw with round head and Philips drive, electrolytically galvanized for optimal protection. 

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Metal screw round head Philips drive electrolytically galvanized M4x20 (20 pieces)

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### High-quality metal screws for various applications

These metal screws with round head and Philips drive are ideal for fastening metal sheet material and switchgear. Thanks to the electrolytic galvanization, they offer excellent protection against corrosion.

### Specifications

- **Diameter** : M4
- **Length** : 20 mm
- **Head type** : Round head
- **Drive** : Philips drive
- **Material** : Steel grade 4.8
- **Surface treatment** : Electrolytically galvanized
- **Standard** : DIN 7985H

### Benefits of electrolytically galvanized screws

- **Corrosion resistance** : The electrolytic zinc layer protects the steel against rust formation.
- **Aesthetically appealing** : The galvanized finish provides a shiny and professional appearance.
- **Durability** : Increases the lifespan of the screws, even in humid environments.

### Applications

These screws are suitable for:

- Fastening metal sheet material
- Mounting switchgear
- Installing junction boxes

### Installation instructions

For optimal fastening:

- Use a 4.0 mm metal drill for pre-drilling.
- Use a Phillips screwdriver bit to tighten the screws.

### Packaging

This set contains 20 metal screws, sufficient for various projects and applications.

## Specifications

 Reference 

 **SIN-U4-20** 

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