uxcell M8 x 100mm Thread Hex Head Split Expansion Bolts Screws 5 Pcs bee Copper nut

Copper nut

Easy to Use Granarbol stylus pen is very easy to use

and charging heads

you may feel the copper shell get hot easier

(Update 03/21/2020 - The laser output (the brightness) is exactly the same as before

uxcell M8 x 100mm Thread Hex Head Split Expansion Bolts Screws 5 Pcs bee Copper nutuxcell M8 x 100mm Thread Hex Head Split Expansion Bolts Screws 5 Pcs Applications: be widely used in fence, burglarproof doors and window, canopy, air conditioning rack fixation, home decoration, engineering, etc. The working principle of expansion screw: Put the expansion screw into the ground or the hole on the wall and then tighten the nuts of the expansion bolt with wrench. The bolt goes outside while the metal sheath does not move. Thus the