Locking and Non-locking Threads • Provide load-bearing threads in thin sheets • Permit a total of .030”/0.76 mm adjustment for mating hole misalignment. • Sheet remains flush on one side, and the fastener is permanently locked in place. • Threads of the floating nut extend into the retainer shank for extra strength and support in assembly. AC™/AS™/LAC™/LAS™ floating Nuts • Designed for clinching into steel or aluminum panels and sheets. • Available with (LAC/LAS) or without (AC/AS) locking threads. A4™/LA4™ floating nuts • Provide prevailing torque locking threads with performance equivalent to applicable NASM25027 specifications(1). • Designed for clinching into stainless steel panels and sheets. • Available with (LA4) or without (A4) locking threads.