ROLLER DOOR U-BOLT AND SADDLE ASSEMBLIES ATA™ U-Bolt & Saddle Assembly Suitable for use on most types of Roller Doors. Stramit® U-Bolt & Saddle Assembly Suitable for use on most types of Roller Doors. B&D™ (Series 2) U-Bolt & Saddle Assembly Suitable for use on most types of Roller Doors. Gliderol™ U-Bolt & Saddle Assembly Suitable for use on most types of Roller Doors. FOR SERVICE or QUOTES Please enter your details and we will get back to you shortly! First Name SMS Number Email Postcode