Built To Last Upgrade Your Rig With These Grade 12.9 Hex Buttonhead Kingpin Shoulder Screws 10 Piece M3x4x10mm Gear Swap Set Tailored For SCX10 AR44 AR45 And Capra Portal Axle Builds

Strong m3 hex shoulder screws for rc crawler portal axles
✔️ M3 4mm shaft 10mm length alloy steel 12.9 grade black 10 pack

These heavy duty hex head fasteners replace worn factory hardware on popular radio controlled crawlers designed for slow scale off road use. They mount directly into the steering knuckle pivots to provide smoother rotation and less play during technical terrain runs.

✅ Precision m3 threading matches original kingpin pivot holes
✅ Hardened alloy steel construction delivers superior torque resistance
✅ Black oxide coating prevents corrosion and reduces friction
✅ Includes ten replacement units ready for immediate axle upgrade installation

💡 What helps maintain smooth steering action on long trail rides? Upgrading worn pivot pins keeps your suspension tracking straight without constant adjustments. - Switching to hardened steel hardware handles rock crawling impacts much easier than soft brass fittings - These handy replacement parts work well for standard crawler builds that push through tight obstacles daily - Installing fresh shoulder bolts locks down the knuckle clearance for reliable handling under heavy loads

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