DIN 933SZ Slotted Hexagon Head Screws

DIN 933 standard specifies requirements for hexagon head screws with threads extending approximately to the head, featuring metric coarse pitch threads from M 1.6 to M 52. They fall under product grade A for thread sizes up to M 24 and lengths ≤ 10 d or 150 mm, and product grade B for thread sizes over M 24 or lengths > 10 d or 150 mm.
The screws correspond to those specified in DIN 931 Part 1, but feature threads extending approximately to the head and come in commercially available lengths up to 200 mm.
If specifications other than those in DIN 931 standard are needed for special cases (e.g., different property classes), they must be selected according to the relevant standards.

DIN 933 SZ Equivalent

UNI 5739

DIN 933 SZ Dimensions

D	M3	M4	M5	M6	M8
k	2	2.8	3.5	4	5.3
s	5.5	7	8	10	13
t	0.8	1.1	1.4	1.6	2.1
n	0.8	1	1.2	1.6	2