Abstract: Releasable connectors are disclosed for attaching a servo writing fixture to a head transducer assembly to facilitate writing servo information on a servo surface of a rigid disk drive. One connector includes a body for support and attachment of the fixture and an engagement collet for attachment to the top arm of the transducer arm assembly. The engagement collet has a spring operated internal mandrel which disengages the collet from the transducer assembly. Alignment is accomplished with a registration pin that attaches to the top arm of the arm assembly. The second connector includes two parts that are hinge connected in the middle and spring biased apart at the top to form a clamping mechanism. The completed hinged connector defines three leg extensions for attachment to the side of the top arm of the arm assembly and alignment in an opening in the top arm of the arm assembly. Release of the second connector occurs upon compression of the spring.