1/4" Dual Nuts Tripod Mount Screw to Flash Digital Camera Hot Shoe Adapter Tool OFFER: BUY 2 GET 3 BUY 2 GET 3 Item Description: 100% Brand New High Quality Permit the devices with standard 1/4" screw hole to be installed on flash hot shoe slot. Mount microphone, GPS or another camera onto your digital camera. Include 2 nuts which can be adjusted. This adapter can pile up two camera. Compatible with Nikon SC-28 TTL cord, YongNuo CTR-301P flash trigger, 1/4'' tripod socket DSRLs, etc. Package includes: 1x Tripod Mount Screw Material: Metal Bolt 2.5 cm Thread 0.04 cm Head 1.7 cm