RMRC M3 Hardware Pack - 12.9 Grade, 7 Screw Sizes (460 Pcs) - Flat Head
by RMRC

The RMRC M3 Hardware Pack (460 Pcs) - Flat / Countersink Head is a premium, high-tensile fastener assortment engineered specifically for FPV drone builders, RC pilots, and custom robotics hobbyists who require a completely flush surface finish. Standard socket head screws stick out, which can snag on obstacles, scrape battery packs, or disrupt sleek aerodynamic profiles. By utilizing a flat, countersunk head design, these screws sit perfectly flush with the surface of your carbon fiber plates or mounting brackets, ensuring a clean, snag-free build. This kit utilizes 12.9 Grade Alloy Steel, providing maximum tensile strength and superior durability compared to standard stainless steel or lower-grade iron fasteners. The rugged hex drive allows you to apply high torque without the fear of stripping screw heads during tight frame assembly or structural installations.

The entire kit comes neatly sorted in a clear, heavy-duty, multi-compartment plastic organizer storage box. The interior lid features a comprehensive label mapping out all seven crucial screw lengths ranging from ultra-short 4mm variations up to longer 16mm options, alongside a dedicated supply of matching M3 washers. This layout completely eliminates the hassle of rummaging through loose bags, giving you a field-ready hardware solution perfect for bench builds or emergency flight-line repairs.

Technical Specifications

• Product Name: RMRC 12.9 Grade Alloy Steel M3 Hex Flat Head Cap Screws Kit

• Material Composition: 12.9 Grade High-Tensile Alloy Steel

• Thread Type: Standard Metric M3 (3mm Diameter)

• Head Style: Flat / Countersink Head

• Drive Type: Hex Socket (Allen)

• Total Piece Count: 460 Pieces

• Length Assortment Range: 4mm to 16mm

• Finish: Black Oxide Corrosion-Resistant Coating

• Storage Case: Clear, snap-locking multi-compartment organizer

• Application Scope: Flush-mount multirotor frame assembly, bottom plate fastening, battery tray protection, aerodynamic profiling, custom robotics

What's Included

This 460-piece kit includes:

• 50 x M3 * 4mm Flat Head Screws

• 50 x M3 * 5mm Flat Head Screws

• 100 x M3 * 6mm Flat Head Screws

• 70 x M3 * 8mm Flat Head Screws

• 60 x M3 * 10mm Flat Head Screws

• 50 x M3 * 12mm Flat Head Screws

• 30 x M3 * 16mm Flat Head Screws

• 50 x M3 Premium Washers

• 1 x Durable Multi-Compartment Storage Case