Base Length : .85 in (21.6 mm), Base Width : .50 in (12.7 mm), Compatible Thread Sizes (All) : #4,M3, Height : .58 in (14.7 mm), Hole Diameter : .125 in (3.2 mm), Inside Height : .39 in (9.9 mm), Inside Width : .64 in (16.3 mm), Material Flammability Standard : UL94 V-2