Quarter Turn T-nuts are a versatile fastening solution for aluminum extrusions. The quarter turn design allows for quick assembly and disassembly. With a micro-locking mechanism to prevent loosening, these nuts are ideal for applications that require repeat attachment and removal. Pack includes 50 individual T-nuts. 1/4-20 thread size. Works well with common extrusions like 80/20, 15 Series profiles. Their low-profile, high neck design provides maximum engagement. Whether for prototyping, displays, machinery or other projects, these nuts deliver strength, stability and ease-of-use.