Acorn nuts, also known as cap nuts, add to the durability of a screw. When threaded on a fastener, the nut will hide the threads and provide a nice finished look. These acorn nuts are hex nuts with an enclosed dome that is partially, internally threaded. They offer protection to threads and a decorative appearance as a finishing fastener. Acorn nuts are often used in hobby and furniture projects.
- Acorn nuts are designed to protect against injury by covering exposed threads 
- Nylon acorn nuts are corrosion resistant and should be used with nylon threaded rods 
- No tools required - simply install by screwing onto exposed thread 
- Offers protection of threads with a decorative appearance as a finishing fastener 
- Can be used in hobby and furniture projects, fencing, lawn or playground equipment 
- Matches coarse 1/4-in-20 screw thread