Hours Of Operations Master Lock California Signal Hill Master Lock Hours of Operation and Locations in Signal Hill, CA 4.8 - 140 votes 1 Locations in Signal Hill masterlock.com Master Lock Hours Category: Home & Garden Master Lock - Signal Hill, CA 90755 2325 Redondo Ave(562) 566-4256 View Store Details Explore Signal HillView More Apparel CostcoRoss Dress for LessH & MCoachExpress Sports CostcoTargetVansBlades Jewelry Costco Recommend For You Mattress 1 One Mattress Discounters Mattress Giant Mattress Superstore Mattress Warehouse Maui Divers Jewelry McCoy's Building Supply Merle Norman Cosmetic Studio Miele Modern Bathroom