Product Details
The 3971 kit includes a .349-inch inside diameter washer, a 5/16-18 flanged hex head nut equipped with a thread lock patch, and a 5/16-18 by 1.750-inch button head socket cap screw (BHSCS). This assembly is designed for secure fastening applications requiring precise thread engagement and reliable locking performance. The components are manufactured to meet industry standards, ensuring compatibility and durability in various mechanical and engineering environments. The kit comes with a warranty that covers manufacturing defects and guarantees quality and performance under specified usage conditions.








