Timac manufactures and inventories hex head machine screws from #2 to 1/4” diameter. We also have metric hex head machine screws available upon request. These hex head machine screws are manufactured to the most recent ASME B18.6.3, IFI, or customer stated standards with either full or partial threaded options.  Our inventory is home to thousands of these hex head machine screws in any of our various materials including grade 2 titanium, grade 5 titanium, grade 7 titanium.

		A		W	H		J		T
	NOMINAL SIZE	WIDTH ACROSS FLATS		ACROSS CORNERS	HEADHEIGHT		SLOT  WIDTH		SLOT DEPTH
		MAX	MIN	MIN	MAX	MIN	MAX	MIN	MAX	MIN
	1	0.125	0.120	0.134	0.044	0.036	--	--	--	--
	2	0.125	0.120	0.134	0.050	0.040	--	--	--	--
	3	0.188	0.181	0.202	0.055	0.044	--	--	--	--
	4	0.188	0.181	0.202	0.060	0.049	0.039	0.031	0.036	0.025
	5	0.188	0.181	0.202	0.070	0.058	0.043	0.035	0.042	0.030
	6	0.250	0.244	0.272	0.093	0.080	0.048	0.039	0.046	0.033
	8	0.250	0.244	0.272	0.110	0.096	0.054	0.045	0.066	0.052
	10	0.312	0.305	0.340	0.120	0.105	0.060	0.050	0.072	0.057
	12	0.312	0.305	0.340	0.155	0.139	0.067	0.056	0.093	0.077
	1/4	0.375	0.367	0.409	0.190	0.172	0.075	0.064	0.101	0.083
	5/16	0.500	0.489	0.545	0.230	0.208	0.084	0.072	0.122	0.100
	3/8	0.562	0.551	0.614	0.295	0.270	0.094	0.081	0.156	0.131