Bainbridge's heavy-duty institutional​ locking shelf support is made with strong, polycarbonate material and dual 5mm pegs spaced 32mm apart for 3/4in. or one-inch thick shelves. Available in almond, black, brown, clear, tan, and white, the locking shelf supports have passed Passed ANSI/BHMA cabinet hardware test A 156 Section 4.8.2, Test 7 Grade 1.