Glides 1-1/2" - 5/16-18 THREADED INSERT Item # : OC440 112 T516 16-18GA 1-1/2" - 5/16-18 SQUARE THREADED ADAPTER INSERT GLIDE, BLACK 16-18GA $2.19 Quantity Default Title - $2.19 Add To Cart Item Weight 0.05 lb Glide Color Black Glide Inside Diameter 5/16" Glide Material Plastic Glide Outer Diameter 1-1/2" Glide Outside Diameter 1-1/2" Glide Style Threaded Inserts Square product type Glides