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Continue to ChatKL-QB-2S-6.4-1-D - Brass, Retracted Bolt length 6.4mm, 3 Locks, Double Key, Castell, Q Type, KL Dual Key Bolt Interlock https://www.concretespares.ie/product/kl-qb-2s-6-4-1-d-brass-retracted-bolt-length-6-4mm-3-locks-double-key-castell-q-type-kl-dual-key-bolt-interlock/