Forevercam 5 in 1 Aluminum Action Camera with Wing Screw Accessories Tripod Mount Adapter Kit for Gopro Session, Fusion, Hero, 6, 5, 4, 3 +, 3, 2, 1

☺ knurled aluminum screw, high strength, high rigidity and precision in aluminum alloy CNC machining srews.Hard texture. Stronger than plastic screws☺ perfect replace the plastic knurled screw for GoPro cameras.☺ a small wrench makes it easier to twist the screw. And it can make the Twist screw narrow.Suitable for most types of screws.☺ the bolt and screw nut mounting nuts and bolts is super light in high quality aluminum. A small rubber ring is good to prevent abrasion, but it is not essential for everyone if put them when you don't need it.