Achieve the ultimate in frame rigidity and durability with the ImpulseRC High-Tensile Shoulder Bolts. These custom-machined bolts are a significant upgrade for your Apex frame, specifically designed to eliminate all arm movement and “slop” at the mounting point. For pilots who demand the most locked-in and responsive feel possible, this is an essential hardware upgrade.

The Shoulder Bolt Advantage

Unlike standard screws that are threaded all the way to the head, a shoulder bolt features a smooth, unthreaded “shoulder” section. This precisely machined shoulder acts as a perfect dowel pin inside the arm’s mounting hole, leaving zero room for movement. This creates a rock-solid connection between your arm and the main frame, resulting in a stiffer, more responsive drone and cleaner gyro data.

High-Tensile Strength

Crafted from 12.9 grade high-tensile alloy steel with a sleek gunmetal finish, these bolts are significantly stronger than standard stainless steel screws. They are more resistant to bending in a crash and the 2.5mm hex head is less prone to stripping, ensuring a long and reliable service life.

Key Features:

• Shoulder Bolt Design: Completely eliminates arm slop for a stiffer, more responsive frame and smoother flight.
• High-Tensile 12.9 Grade Steel: Offers superior strength, durability, and resistance to stripping compared to standard screws.
• Genuine ImpulseRC Hardware: Guarantees a perfect fit and the intended performance for your Apex or Apex EVO frame.
• Multiple Lengths Available: Choose the perfect length to suit your specific arm thickness and accessories.
• Premium Gunmetal Finish: Provides a custom, high-end look for your build.

Select the Correct Length for Your Build

These bolts are available in multiple lengths to accommodate different setups. Please select your required length from the dropdown menu. As a general guide:

• 10mm / 12mm: Often used for standard arm configurations.
• 16mm: May be required for thicker “beefy” arms or when using arm guards.
• Always measure your required screw length before ordering to ensure a perfect fit.

Specifications

• Brand: ImpulseRC
• Product: M3 High-Tensile Shoulder Bolt
• Compatibility: ImpulseRC Apex & Apex EVO Frames
• Thread Size: M3
• Head Type: Socket Head
• Driver Size: $2.5\text{mm}$ Hex
• Material: 12.9 Grade High-Tensile Alloy Steel
• Finish: Gunmetal

Includes

• 4x ImpulseRC M3 High-Tensile Shoulder Bolts (in your selected length)