TRILOBULAR TYPE S TREADFORMING FOR USE IN METAL SHEET AND CASTINGS

Technical Data

S Type trilobular thread form

Screw diameter	Pitch	Incomplete thread under head	Thread angle	No. of Phillips recess	c Min	c Max	d Min	d Max	Min Tensile Breaking Torque
M2	0.4	Max 2 x pitch	60	1	1.96	2.04	1.88	1.96	0.44 Nm
( M2.3 )	0.4	Max 2 x pitch	60	1	2.26	2.34	2.18	2.26	0.75 Nm
M2.5	0.45	Max 2 x pitch	60	1	2.47	2.55	2.38	2.46	0.95 Nm
( M2.6 )	0.45	Max 2 x pitch	60	1	2.57	2.65	2.48	2.56	1.17 Nm
M3	0.5	Max 2 x pitch	60	2	2.97	3.05	2.87	2.95	1.76 Nm
( M3.5 )	0.6	Max 2 x pitch	60	2	3.48	3.56	3.36	3.44	2.74 Nm
M4	0.7	Max 2 x pitch	60	2	3.99	4.07	3.85	3.93	4.11 Nm
M5	0.8	Max 2 x pitch	60	2	5	5.08	4.84	4.92	8.62 Nm
M6	1.0	Max 2 x pitch	60	3	6	6.1	5.8	5.9	14.4 Nm
M8	1.25	Max 2 x pitch	60	3	8.03	8.13	7.78	7.88	36.1 Nm