What is a Sems ScrewA Sems Screw is a type of a fastener.How do they work?The screws are already pre-assembled with a free spinning lock washer, held in place by the diameter of the screw thread being wider than the hole of the washer.Features and Benefits• They come with different head types, washer styles, thread styles, plating types and materials.• Easy to use, especially in difficult spaces.• Increased efficiency and cost as already pre-assembled.• No time wasted looking for lost components.Where would you use one?• Electrical Industry• Automotive Industry• Switch Gear Industry• Commercial Use• Construction Industry• Workshops• DIY Enthusiasts