What size are the screws for this product?

The diameter of the hole is 1.7mm,and we had screws together with the servo you can check the package. Thanks.

What is the size of this servo Spline?

Don’t know the exact size but can tell you it is very small

Are there any replacement servo arms?

They com with a variety of servo arms. I don't know if any are available separately.

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🚀 Elevate your RC game with micro precision and mega durability!

BUILT TO LAST - All-nylon gears ensure durability and extended service life, keeping your models flight-ready.
SILENT POWERHOUSE - Coreless motor design offers high torque with whisper-quiet operation for smooth maneuvers.
FEATHERWEIGHT PRECISION - At just 3.7g, this servo delivers pinpoint control without weighing down your RC craft.
PLUG PLAY CONVENIENCE - 150mm connector wire gives you flexible installation options for any build.
VERSATILE COMPATIBILITY - Perfectly engineered for planes, helicopters, boats, and cars—one servo to rule them all.

The YoungRC GH-S37D is a set of five ultra-lightweight (3.7g) digital micro servos featuring coreless motors and durable nylon gears. Designed for versatile use across RC planes, helicopters, boats, and cars, these servos offer high torque, low noise, and flexible installation with 150mm connector wires—ideal for professional-grade aeromodelling and remote control enthusiasts.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Bs.696

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

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Unit Count	5.0 Count
Material Type	Nylon
Theme	helicopter, car, boat
Toy Vehicle Form	multiple
Are Batteries Required	No
Operation Mode	manual
Power Source	Battery Powered
Additional Features	Portable

YoungRC Micro 3.7g Servo GH-S37D Mini Digital Servo for Control Aeromodelling Aircraft Flight Direction RC Plane Helicopter Boat Car 5pcs

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