Consists of 1/4 in W center groove wheel. Heat-treated, high-tension adjustable steel M-spring. Used by several patio door manufacturers.
| Id | 218479 |
| SKU | 2507507 |
| PartNo | B 512 |
| UPC | 049793005120 |
| Number Of Rollers | 2 |
| Bearing Type | Ball |
| Spring Type | M |
| Roller Edge Type | Concave |
| Roller Width | 1/4 In |
| Roller Diameter | 1 In |
| Material | Steel |
| Color | Gray |
| Finish | Unfinished |
| Suitable For | Sliding Screen Glass Doors |
| Includes | (2) #8 X 1 In Phillips Screws |
| CID | 9 |