Abstract: A latch spring assembly for brake pad guide pins received in a disc brake caliper, such as the floating type as commonly utilized in automobile brake systems, wherein an opposed pair of disc brake pad members, which support friction pads in turn for engagement of opposite peripheral sides of a brake disc for braking, are retained between opposed caliper body walls on a pair of spaced guide pins which pass transversely through the pad members. The guide pins are latched in position for retention by a latch spring having outwardly extending legs with the ends thereof respectively received in or through the guide pins. A spring retention opening is provided through one of the opposed caliper body walls and the latch spring is provided with a central hook which extends through and hooks this retention opening under spring tension.