Featuring a variety of shelf clips, shelf supports, spoon clips and shelf pins for 1/4" holes and adjustable 32mm shelving systems with 5mm holes.. Prime-line - self-locking 1/4 in. 1/2 in. brown shelf support peg - give added support to shelves by adding these locking pegs beneath the shelves. blends well with wood. installation is quick and easy and requires no tools.. Locking shelf clips 3/4