GAINSBOROUGH SECURITY BOLT KEY PT444/SBK
Used for double doors that have a concealed bolt holding the fixed door in the fixed position. You may see a small hold on the top and bottom of your fixed door, this is where you insert this key to unlock.
Tags: Lock Shop, Locks, Domestic & Commercial Locks, Locking Bolts, Patio Door Bolts & Spare Parts, Gainsborough Lock Shop
