
Henderson garage door springs, green, grey, yellow
Henderson Ultra 150 Mk1 Spring
Henderson Ultra 150 Mk2 Spring
Henderson Ultra 210 Spring
Henderson Ultra 225 Mk2 Spring
Henderson over head main spring
Henderson Spring Chart Identification Chart
Henderson Springs | The length of spring over the coils | Number of Coils | Spring Diameter | Wire Diameter | General Information |
Yellow | 533mm / 21" | 99 | 38mm | 5mm | used on single doors |
Grey | 533mm / 21" | 99 | 38mm | 5.5mm | Used on doors upto 12" wide |
Green | 533mm / 21" | 99 | 38mm | 6.0mm | Used on double doors |
Ultra 150Mk1 | 521mm / 20.5" | 82 | 47mm | 6.5mm | Hexagonal head adjuster bolt is used |
Ultra 150Mk 2 | 424mm / 16.6" | 63 | 54mm | 7mm | Hook adjuster bolt is used |
Ultra 210 | 603mm / 23.7" | 86 | 49mm | 7mm | Hexagonal head adjuster bolt used |
Ultra 225 Mk2 | 516mm / 20.3" | 62 | 64mm | 8.6mm | Hook adjuster bolt used |
Henderson garage door springs, green, grey, yellow
Henderson Ultra 150 Mk1 Spring
Henderson Ultra 150 Mk2 Spring
Henderson Ultra 210 Spring
Henderson Ultra 225 Mk2 Spring
Henderson over head main spring