Replacing part numbers: N864353, which is a direct replacement for the old or broken one. Compatible with DeWalt DCS438B cutting tool models, designed to fit securely and provide proper blade attachment during operation. The cutting tool blade bolt has a length of 19.5 mm, a width of 15 mm, a thread diameter of 6 mm, and a thread length of 11 mm. Made of metal material in black color, the bolt provides strength and durability to withstand repeated use and cutting forces. Installed on the cutting tool to secure the blade in place, ensuring safe and efficient cutting operation., Manufacturer: YINETTECH