Kupo 1" Conversion Adapter 1/4"-20F to 1/4"-20M (Set of 5)-convert any 1/4'-20 receiver to a male 1/4"20 stud- 1"/25.4mm long. - tightens securely into place using an allen key or hex key. - mount spigots, tripod heads or anything with 1/4"-20 receiver in difficult places
