TAPPING SCREWS INDENTED HEX SLOTTED HEAD
	HEAD DIMENSIONS

Nominal Size	Width Across Flats		Width Across Corners	Head Height		Width of Slot		Depth of Slot
	Max.	Min.	Min.	Max.	Min.	Max.	Min.	Max.	Min.
4	.187	.181	.202	.060	.049	.039	.031	.036	.025
5	.187	.181	.202	.070	.058	.045	.035	.042	.030
6	.250	.244	.272	.093	.080	.048	.039	.046	.033
7	.250	.244	.272	.093	.080	.048	.039	.054	.040
8	.250	.244	.272	.110	.096	.054	.045	.066	.052
10	.312	.305	.340	.120	.105	.060	.050	.072	.057
12	.312	.305	.340	.155	.139	.067	.056	.093	.077
14	.375	.367	.409	.190	.172	.075	.064	.101	.083
1/4	.375	.367	.409	.190	.172	.075	.064	.101	.083
5/16	.500	.488	.545	.230	.208	.084	.072	.122	.100
3/8	.562	.551	.614	.295	.270	.094	.081	.156	.131