These Key inserts are available in materials such as Stainless steel 303 grade, Alloy steel A286 and other space age metals in natural finish, passivated or coated surface. These inserts are available in a size range of internal diameter in Metric series as M2 upto M24 and in UNC /UNF series as 2-56 upto 1 inch. The locking torque values are consistent and well within the range established by MIL-I-45914A. Inserts with this feature are designed to securely lock a bolt when it is introduced into the insert only a few turns. Featuring an exclusive external thread design, Key inserts provide maximum pull-out strength with a minimum outside diameter. Locking Keys are driven down into the tapped threads of the parent material during installation to securely lock the insert against rotation. Positive mechanical lock against rotation
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