Item:Hex Head Cap Nuts Screw with Washers Assortment;
Package dimension:8.25x4x1 inch;
Package including:
Hex Bolt: M4*16----------------------------20PCS
M4*20---------------------------20PCS
M4*25------------------------------20PCS
M5*20------------------------------20PCS
M5*25-----------------------------20PCS
M6*20--------------------------------20PCS
Nut:
M4--------------------------------------60PCS
M5--------------------------------------50PCS
M6--------------------------------------25PCS
Lock Washers :
M4-------------------------------------60PCS
M5-------------------------------------50PCS
M6--------------------------------------25PCS
Flat washers :
M4----------------------------------------60PCS
M5----------------------------------------50PCS
M6-----------------------------------------25PCS
These Hex Head Bolts, Nuts and Washers are often used in your life, all 525 pieces are put in one plastic case individually, there is a brief instruction attached, you can differentiate those sizes easily, it is a good choice to storage it for unexpected need.