![Prime-Line B 521 Roller Assembly, 1 in Dia Roller, 1/4 in W Roller, Plastic/Steel, 2-Roller [SKU: ORG7430150]](https://cdn11.bigcommerce.com/s-er447ou6zb/images/stencil/600x600/products/32771/31608/7430150__64455.1683068032.jpg?c=1 "Prime-Line B 521 Roller Assembly, 1 in Dia Roller, 1/4 in W Roller, Plastic/Steel, 2-Roller [SKU: ORG7430150]")
Product Overview
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. [QTY/UOM: 2 / 1CD] [PMS SKU: ] [Category: PATIO DOOR HARDWARE/DOOR ROLLERS;Shop All]
![Prime-Line B 521 Roller Assembly, 1 in Dia Roller, 1/4 in W Roller, Plastic/Steel, 2-Roller [SKU: ORG7430150]](https://cdn11.bigcommerce.com/s-er447ou6zb/images/stencil/1280x1280/products/32771/31608/7430150__64455.1683068032.jpg?c=1 "Prime-Line B 521 Roller Assembly, 1 in Dia Roller, 1/4 in W Roller, Plastic/Steel, 2-Roller [SKU: ORG7430150]")
![Prime-Line B 649 Roller Assembly, 1 in Dia Roller, 1/4 in W Roller, Plastic/Steel, Gray, 2-Roller [SKU: ORG9589110]](https://cdn11.bigcommerce.com/s-er447ou6zb/images/stencil/500x659/products/32796/31630/9589110__76345.1683068044.jpg?c=1 "Prime-Line B 649 Roller Assembly, 1 in Dia Roller, 1/4 in W Roller, Plastic/Steel, Gray, 2-Roller [SKU: ORG9589110]")
Prime-Line
![Prime-Line B 638 Roller Assembly, 1 in Dia Roller, 1/4 in W Roller, Steel, 2-Roller [SKU: ORG9275298]](https://cdn11.bigcommerce.com/s-er447ou6zb/images/stencil/500x659/products/32791/31625/9275298__35386.1683068042.jpg?c=1 "Prime-Line B 638 Roller Assembly, 1 in Dia Roller, 1/4 in W Roller, Steel, 2-Roller [SKU: ORG9275298]")
Prime-Line
![Prime-Line B 639 Roller Assembly, 1 in Dia Roller, 1/4 in W Roller, Steel, Gray, 2-Roller [SKU: ORG0281113]](https://cdn11.bigcommerce.com/s-er447ou6zb/images/stencil/500x659/products/32792/31626/0281113__42967.1683068042.jpg?c=1 "Prime-Line B 639 Roller Assembly, 1 in Dia Roller, 1/4 in W Roller, Steel, Gray, 2-Roller [SKU: ORG0281113]")
Prime-Line
![Prime-Line B 576 Roller Assembly, 1 in Dia Roller, 1/4 in W Roller, Steel, Gray, 2-Roller [SKU: ORG9488735]](https://cdn11.bigcommerce.com/s-er447ou6zb/images/stencil/500x659/products/32783/31618/9488735__05999.1683068038.jpg?c=1 "Prime-Line B 576 Roller Assembly, 1 in Dia Roller, 1/4 in W Roller, Steel, Gray, 2-Roller [SKU: ORG9488735]")
Prime-Line
![Prime-Line B 512 Roller Assembly, 1 in Dia Roller, 1/4 in W Roller, Steel, Gray, 2-Roller [SKU: ORG2507507]](https://cdn11.bigcommerce.com/s-er447ou6zb/images/stencil/500x659/products/32766/31603/2507507__60748.1683068030.jpg?c=1 "Prime-Line B 512 Roller Assembly, 1 in Dia Roller, 1/4 in W Roller, Steel, Gray, 2-Roller [SKU: ORG2507507]")