Bohning Signature® Nock The Bohning Signature® Nock is built for archers who demand consistency, durability, and a perfect fit every time. Designed to suit standard .246" ID carbon shafts and Super UNI Bushings, this press-fit nock is a favourite among bowhunters and target shooters alike. Made from impact-resistant polycarbonate and featuring a smooth throat and raised index, it delivers reliable string contact and crisp release — shot after shot. Key features: Fits .246" ID carbon shafts and Super UNI Bushing systems Press-fit installation — no glue required Smooth throat design for clean, consistent release Raised index for fast and accurate nock alignment Impact-resistant polycarbonate construction Approx. 12 grains in weight Specs: Shaft compatibility: .246" internal diameter (standard carbon shafts) Material: Polycarbonate Throat size: .109" (2.77mm) Weight: 12.0 grains