Long Thumb Screw Set Thumb Screw Knob Bolt Set for GoPro Hero 4, 3+, 3, 2, 1 (Blue) Personalize your GoPro with these blue colored thumb screws. Thumb screws allow you to secure your GoPro tighter and stronger. Made of high quality, high strength, high rigidity & precision CNC machining aluminum alloy and stainless steel. Durable and provides long life. Includes 3 pieces of long thumb screws (5.7cm / 2.2inches) made especially for GoPro housing. Compatible with all models of GoPro Hero cameras: GoPro Hero 4 Black / Silver, GoPro Hero 3 / 3+ Silver / Black, GoPro Hero 2, Hero and GoPro Entry Level World's best accessory package for GoPro optimization