These excellent quality stainless captive screws allow the fitment of different styles of plates to fit directly into the base of your camera equipment Features: Can be used with tripods, monopods, telescopes, ball heads, lens collars, lens plates etc. 1/4" Stainless steel (metal) Tripod screws. 1/4" metal male thread with flat head screwdriver slot. Shaft is 10mm in length, approx 5mm threaded, 5mm unthreaded. Total length including base is 14mm. Head Diameter is 14mm. Specifications: Color: Silver Weight per each screw: 0.19oz/5.4g Package Contents: 5x Neewer 1/4" Screw(with ring)