Large shear pins are used to prevent premature separation of the nose cone from the rocket prior to ejection. These 4-40 threaded nylon screws are easy to install, and are the standard for high power flyers that want more holding power than a standard 2-56 shear pin.
Shear pins and cardboard tube Rocketry Forum - Model Rocketry Forums
500# Ball Bearing Swivel
Small Nylon Shear Pins - 20 pack
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Standard Rail Button (fits 1 Rail - 1010)
Threading 3D Printed Parts: How To Use Heat-Set Inserts
Shear pins Rocketry Forum - Model Rocketry Forums
These precision machined inserts allow you to use real metal screws to hold the sections of your rocket together. This allows you to assemble the
2-56 Vindicoat Aluminum Fastener Inserts
Eyebolts with Washers and Nuts [29629] - $5.65 : Apogee Rockets, Model Rocketry Excitement Starts Here