- Brand: ARRMA
- Part Number: Z-ARA722418
- EAN: 5052127036665
- Product Type: Flat Head Hex Machine Screw
- Material: Steel
- Screw Diameter: M4 (4mm metric)
- Screw Length: 18mm
- Head Type: Countersunk (Flat Head)
- Driver Type: Hex Socket
- Thread Type: Machine Thread
- Colour: Black
- Pack Contents: 4 screws
- Compatible Vehicle: ARRMA 1/8 KRATON 6S EXB 4X4 RTR Speed Monster Truck
Overview
The ARRMA Flat Head Hex Machine Screw M4x18mm (4) Z-ARA722418 is an essential replacement fastener for RC enthusiasts across the UK who demand quality and reliability in their RC car builds and maintenance. Whether you're maintaining your ARRMA 1/8 KRATON 6S EXB 4X4 RTR Speed Monster Truck or servicing other RC vehicles, these precision-engineered screws are manufactured to exacting standards to ensure perfect fit and consistent performance. As a critical component in RC vehicle assembly and repair, having the correct fasteners on hand is essential for any serious RC hobbyist, whether you're a weekend basher or a competitive racer looking to maintain your ready to run RC cars in top condition.
These flat head hex machine screws represent the kind of attention to detail that separates quality RC builds from problematic ones. ARRMA is renowned for supplying genuine replacement parts that meet the original specifications of their kits, and this particular screw size is commonly used in various assembly points across their range of RC vehicles. For RC car UK enthusiasts who understand that proper maintenance and the availability of correct replacement parts is fundamental to enjoying your hobby, these screws are an indispensable item to keep in your spares box.
The pack contains four individual M4x18mm flat head hex machine screws, making this an ideal replenishment pack for those who have lost or damaged screws during regular maintenance, repair work, or simply as a precautionary measure when building or rebuilding RC vehicles. The metric sizing (M4 diameter with 18mm overall length) is precise and unambiguous, ensuring you order exactly what you need without confusion.
Key Features
- Strong and Durable Steel Construction — These screws are manufactured from high-quality steel that provides exceptional strength and durability to withstand the demands of RC vehicle assembly and operation, ensuring they won't strip, break or fail during normal use or even when servicing demanding applications like monster trucks and high-performance RC vehicles.
- Precision Manufactured Threads — Every screw features consistently precise threads that have been engineered to exacting tolerances, meaning they engage smoothly and securely with threaded holes, providing reliable fastening that won't loosen during vibration or impacts, and making servicing and repairs quick and straightforward without forcing or cross-threading.
- Flat Head Hex Configuration — The combination of a countersunk flat head design with a hex socket allows for clean, flush installation that sits flush with surfaces, whilst the hex driver design prevents cam-out and slipping, giving you secure grip and allowing you to apply proper torque without damaging the screw head during installation or removal.
- M4 x 18mm Metric Sizing — With a precise metric diameter of 4mm and an overall length of 18mm, these screws are dimensionally accurate to ARRMA specifications, ensuring perfect compatibility with genuine ARRMA RC parts and components without the guesswork that comes with non-metric fasteners or incorrect sizing.
- Pack of Four Screws — Each pack contains four individual screws, providing a practical quantity for common repair jobs, replacement of worn fasteners, or simply maintaining a well-stocked spares collection for your RC car UK hobby without excessive surplus packaging waste.
- Black Colour Finish — The black finish provides a professional appearance and helps distinguish these fasteners from other screw types in your spares collection, making identification quick and easy during assembly and maintenance work on your RC vehicles.
Technical Performance
These ARRMA flat head hex machine screws represent genuine engineered fastening solutions specifically designed for RC vehicle applications where reliability and precision are paramount. Manufactured from hardened steel with carefully formed machine threads, each screw delivers consistent engagement and secure fastening characteristics essential for maintaining the structural integrity and mechanical reliability of your RC build. The M4 metric diameter provides substantial holding power whilst remaining appropriately scaled for 1/8 scale RC vehicles like the ARRMA KRATON 6S EXB, where oversized fasteners would appear incongruous and undersized fasteners would compromise reliability. The 18mm overall length positions the grip zone precisely for common assembly applications throughout ARRMA vehicle kits, whilst the countersunk flat head design integrates seamlessly with corresponding holes without protruding and catching or snagging on surrounding components. The hex socket drive design offers superior control compared to slotted or Phillips head alternatives, reducing the risk of tool slip and fastener damage during installation and removal cycles. Whether you're performing routine maintenance, rebuilding worn components, or restoring a damaged RC vehicle, these screws deliver the engineering quality and dependable performance that serious RC enthusiasts expect from authentic ARRMA replacement parts.
What's in the Box
- 4 x M4 x 18mm Flat Head Hex Machine Screws (Black Steel)
Frequently Asked Questions
- What ARRMA vehicles use these M4x18mm flat head hex machine screws? — These screws are compatible with the ARRMA 1/8 KRATON 6S EXB 4X4 RTR Speed Monster Truck and numerous other ARRMA vehicle kits that feature M4 threaded holes requiring 18mm fasteners. If you own any ARRMA RC vehicle and are replacing worn or lost screws, these genuine ARRMA parts ensure perfect fitment and reliability.
- Why should I use genuine ARRMA replacement screws rather than generic fasteners? — Genuine ARRMA screws are engineered to exact specifications, ensuring perfect compatibility with threaded holes in ARRMA components, correct engagement depth, and reliable holding power. Generic fasteners may vary slightly in thread pitch, material hardness, or head dimensions, potentially resulting in poor fit, damage to threaded holes, or fasteners that loosen during operation.
- How many screws come in this pack? — This pack contains four individual M4x18mm flat head hex machine screws, providing adequate quantity for most common repair jobs or as a replenishment for your spares collection.
- What does M4x18mm mean? — M4 refers to the metric screw diameter of 4 millimetres, whilst 18mm is the overall length of the screw measured from the base of the head to the tip. This metric designation ensures precise compatibility with corresponding threaded holes in ARRMA components.
- Are these screws suitable for beginners? — Yes, absolutely. Whether you're a complete beginner learning RC car maintenance or an experienced hobbyist rebuilding your ready to run RC cars, having the correct genuine replacement parts like these ARRMA screws ensures your assembly and maintenance work proceeds smoothly without complications caused by poor fitment or incorrect fastener specifications.
- What type of driver tool do I need to install these screws? — These flat head hex machine screws feature a hex socket (also called Allen key socket), so you'll need a metric hex key or Allen wrench of the appropriate size to install or remove them. The hex socket design provides superior grip and control compared to Phillips or slot-head alternatives.
Why Buy from RC Model Shop?
RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the ARRMA Flat Head Hex Machine Screw M4x18mm (4) Z-ARA722418 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.
We want to make sure your delivery goes smoothly, so here are some important details about our service:
- For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
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