Simpson 0.220 x 5-1/2" Strong-Drive SDWS TIMBER Screw (Interior) E-coat PACK:50 Pk What does "SUL" mean and

What does "SUL" mean and how does it differ from "SUR"

No complex assembly is required

Heavy-duty spindle brake for rapid stopping of the spindle when changing tooling or setups

the operator actuates the pneumatic system with a button

Simpson 0.220 x 5-1/2" Strong-Drive SDWS TIMBER Screw (Interior) E-coat PACK:50 Pk What does "SUL" mean andThe Simpson Strong Drive SDWS TIMBER Screw in 0. 220 in. diameter by 5 1 2 in. length is a structural wood fastener engineered for cross laminated timber construction, mass timber assemblies, log home construction, and general interior wood to wood applications. Finished in a black E coat electrocoating for interior use, this heavy duty timber screw drives faster and with less torque than comparable lag screws, making it a practical choice for