hexagon

Precision Technology
Supplies Ltd

Technical Data

Hexagon Bolts and Setscrews
Din 931 & Din 933

Metric range

Diameter	Across flats	Head height	Across corners	Thread length
Diameter	Across flats	Head height	Across corners	Under 125MM	125MM to 200MM	200MM and over
M2	4	1.4	4.32	*	*	*
M2.5	5	1.7	5.45	*	*	*
M3	5.5	2	6.01	*	*	*
M4	7	2.8	7.66	*	*	*
M5	8	3.5	8.79	16	*	*
M6	10	4	11.05	18	24	*
M8	13	5.3	14.38	22	28	*
M10	17	6.4	18.9	26	32	45
M12	19	7.5	21.1	30	36	49
M16	24	10	26.75	38	44	57
M20	30	12.5	33.53	46	52	65

All dimensions are in MM

Unified (American) range

Diameter	Across flats	Head height
4un	.187	.060
6un	.250	.093
8un	.250	.110
10un	.312	.120
1/4un	.437	.156
5/16un	.500	.203
3/8un	.562	.234
1/2un	.750	.312
5/8un	.937	.390
3/4un	1.125	.468

All dimensions are max in Inches

Imperial dimensions on request

If the information you require is not in the above tables please us and we will be happy to send it to you.

This information is for guidance only no liability can result from its use