Universals for action cameras, this alloy T head thumb screw features knob for toolless installation, eliminating the need for multiple accessories and ensuring mounting. from aluminum alloy T head and stainless steel bolts, it provide superior strength, corrosions resistance, and antislip grip, outperforming standard screws in harsh conditions. for sports enthusiasts, travel photographers, and outdoor adventurers who demand secure and versatile camera attachments for dynamic activities. Perfect for demanding environments like beaches, mountains, skiing, or cycling, where quick adjustments and for capturing high action moments. Package includes: 5pcs Knob Stainless bolts