I'm performing an analysis of an existing pallet rack system. The beam to column connection is a "teardrop" boltless connection. The connection needs to take some moment for seismic forces in the longitudianl direction (parrallel to thespan of the beams). A previous set of calculations limits the end fixity to 25% or 2000 in-lbs, but I'm not sure why. Does anyone have any information on this type of connection. The brand is Prest Lock 2, and they appear to be out-of-business. Thanks.