Bohning's Signature® Nock fits standard carbon shafts with an ID of .246" (commonly known as 6.5mm or S Nock) and Super UNI Bushing systems. The Signature® Nock features a smooth throat and a raised index. Its throat size is .109" (2.77mm) and each Signature® Nock weighs an average of 12.0 grains (777.6 mg).
Tech tip: for easier insertion and indexing, apply a small amount of Bohning's Tex-Tite or Seal-Tite Wax to the nock shank.