40Pcs M4 x 0.7mm Stainless Steel Self-Lock Nylon Inserted 4mm Locking Nuts for 3D Printer, Furniture

[Package] Contains 40 pieces M4-0.7mm lock nuts,coming with one plastic storage case which perfect for store for long time usage | [Dimensions] The thread is metric 4mm with 0.7mm pitch and a total height of 5mm, hex height is about 2.9mm, angle to angle distance is 7.7mm, fit 8mm hex spanner, you could check size details by picture 2 more clearly, overall m4 nylon inserted lock nut fit DIN985 standard | [High-Quality Stainless Steel] Crafted from high-quality stainless steel with plain finish, this nylock nut is rust-proof, tough, and durability | [Easy Installation] This binifiMux lock nut is easy to install on screw ends for fastening bolts/ screws by thread inserted into nylon part | [Warranty and Service] Committed to best service to you if you have issues about units