Prime-Line B 638
Used by metal industries. Center grooved, 1/4 in W, roller. 1-3/4 in L, high-tension, heat-treated steel spring. Includes #8 x 3/8 in Phillips sheet metal screw.
| Bearing Type | : | Ball |
| Dimensions | : | 1-3/4 in L |
| Finish | : | Unfinished |
| Includes | : | (2) #8 x 3/8 in Phillips Sheet Metal Screws |
| Roller Edge Type | : | Concave |
| Spring Type | : | V |
| Suitable for | : | Metal Industries and Sliding Screen Doors |
| Material | : | Steel |
| Roller Diameter | : | 1 in |
| Roller Width | : | 1/4 in |
| Number of Rollers | : | 2 |
- Heat-treated high-tension steel spring