15Pcs M3 x 140mm Fully Threaded Rod 304 Stainless Steel Right Hand,0.5mm Pitch Combination Wrenches you can use this method

you can use this method to expand the M10 thread to M16

but also good roughness

wear resistance and heat resistance

Total Size(Max): 2"x2"x2"(L*W*H)

6Set x Picture Hanging Wire

15Pcs M3 x 140mm Fully Threaded Rod 304 Stainless Steel Right Hand,0.5mm Pitch Combination Wrenches you can use this methodDescription: 304 stainless steel, provides great corrosion resistance and antirust ability for a long service life. Fully threaded rods are widely applied in many occasions. Used for assembly fastening, screw into threaded nuts or tapped holes. Specifications: Type: Fully Threaded Rod Color: Silver Tone Thread Dia: M3 Material: 304 stainless steel Total Length: 140mm Thread: Right Hand Thread Thread Pitch: 0. 5 Package Content: 15Pcs x Threaded Rod