Hexagon Head Cylindrical Sems Machine Screw

Sems screw tech drawing: threaded bolt, serrated flange, labeled side/top views, and section lines.

(mm)	M3	M4	M5	M6	M8	M10	M12
P	0.45	0.5	0.7	0.8	1	1.25	1.5
dk max	5.68	7.22	8.72	10.22	13.27	16.27	18.27
dk min	5.32	6.78	8.28	9.78	12.73	15.73	17.73
e min	2.873	3.443	4.583	5.723	6.863	9.149	11.429
k max	3	4	5	6	8	10	12
k min	2.86	3.82	4.82	5.7	7.64	9.64	11.57
s max	2.58	3.08	4.095	5.14	6.14	8.175	10.175
s min	2.52	3.02	4.02	5.02	6.02	8.025	10.025
t min	1.3	2	2.5	3	4	5	6
d2 min	2.75	3.6	4.55	5.5	7.4	9.3	11
d2 max	2.85	3.72	4.67	5.62	7.55	9.52	11.27
dc max	7	9	10	12	16	20	24
dc min	6.64	8.64	9.64	11.57	15.57	19.48	23.48
h1 max	0.65	0.85	1.06	1.68	1.68	2.09	2.6
h1 min	0.55	0.75	0.94	1.52	1.52	1.91	2.4
d1 max	2.83	3.78	4.75	5.71	7.64	9.59	11.53
d1 min	2.69	3.6	4.45	5.41	7.28	9.23	11.1
h min	0.7	1	1.2	1.5	1.9	2.35	2.85
h max	0.9	1.2	1.4	1.7	2.1	2.65	3.15
b1 min	1.1	1.4	1.9	2.35	2.85	3.3	3.8
b1 max	1.3	1.6	2.1	2.65	3.15	3.7	4.2
H max	2	2.75	3.25	4	5	6.25	7.5
H min	1.6	2.2	2.6	3.2	4	5	6

The Sems Machine Screw with a knurled hexagon head and cylindrical design is an essential fastener for precision assembly. Engineered for durability and ease of installation, this screw combines reliable performance with versatile application options.

Key features:

Hexagon head for secure grip and easy tightening with standard tools
Cylindrical body ensuring consistent fit and alignment
Knurled surface design provides enhanced grip and torque transfer
Suitable for mechanical and industrial applications requiring precision fastening

Specifications:

Available in sizes ranging from M3 to M12
Suitable pitch (P) from 0.45 mm to 1.5 mm depending on size
Maximum d_k diameters from 5.68 mm to 18.27 mm
Minimum e_min lengths from 2.873 mm to 11.429 mm
Head height (h₁) max ranging from 0.65 mm to 2.6 mm
Overall height (H max) from 2 mm to 7.5 mm
D-2 min and max diameters ensure compatibility and fit

Designed for reliable performance and ease of use, the Sems Machine Screw is ideal for distributors seeking high-quality fasteners that meet diverse industrial requirements. Its precise specifications across various sizes ensure versatility and consistent quality in every application.