Thumb Screw Set/ 3 Pieces Long Thumbscrew for Gopro Hd Hero4 Hero3+ Hero3 Hero2 Camera - Konsait Aluminum Stainless Knob Bolt Nut Screw(Blue) Perfect substitute the plastic thumbscrew for GoPro Cameras ( HD Hero2,Hero3, Hero3+) Billet Aluminum Thumbscrew, high-Strength, high rigidity & precision CNC machining aluminum alloy srews The bolt & nut assembly is super lightweight high quality aluminum bolt nut screw A small rubber ring is good for preventing abrasion, yet it is not essential for everyone so put them away when you don't need it. Package: 3 x Long Thumbscrew with Steel Acorn Nut.