Screw type: 1/4-20*10mm / 3/8-16*12mm Handle D Ring Screw (Hex slot). Thread Length Size: 5mm / 6mm. Color: Silver. Material: Stainless Steel. Application: used for SLR camera lanyard hole, self-timer lever lifting screw. Suitable for most DSLR/SLR cameras/Mini DV Camcorder/DC with standard 1/4 / 3/8 tripod socket.