1/4 in W center groove nylon wheel, high-tension 2-1/2 in L heat-treated steel spring and #8 x 3/8 in Phillips pan head sheet metal screw.
Product Details
Manufacturer: PRIME-LINE PRODUCTS
Manufacturer's Part Number: B 521
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Product Features
- Heat-treated high-tension steel spring
Product Specifications
| Bearing Type | Ball |
| Dimensions | 2-1/2 in L |
| Finish | Unfinished |
| Includes | (2) #8 x 3/8 in Phillips Pan Head Sheet Metal Screws |
| Material | Plastic/Steel |
| Number of Rollers | 2 |
| Roller Diameter | 1 in |
| Roller Edge Type | Concave |
| Roller Width | 1/4 in |
| Spring Type | Straight |
| Suitable for | Roll Formed Screen Doors and Sliding Screen Doors |