TRILOBULAR TYPE P THREADFORMING FOR USE IN PLASTIC

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Technical Data

P Type trilobular thread form

Screw diameter	Threads per inch	Thread angle	Taper length	No. of Phillips recess	c Min	c Max	d Min	d Max
M2	32	45 degrees twin start	2.5 x pitch max	1	2.02	2.12	1.94	2.04
( M2.3 )	28	45 degrees twin start	2.5 x pitch max	1	2.33	2.43	2.25	2.35
M2.5	24	45 degrees twin start	2.5 x pitch max	1	2.53	2.63	2.44	2.54
( M2.6 )	24	45 degrees twin start	2.5 x pitch max	1	2.63	2.73	2.54	2.64
M3	20	45 degrees twin start	2.5 x pitch max	2	3.03	3.15	2.93	3.05
( M3.5 )	18	45 degrees twin start	2.5 x pitch max	2	3.54	3.66	3.45	3.57
M4	16	45 degrees twin start	2.5 x pitch max	2	4.04	4.16	3.9	4.02
M5	14	45 degrees twin start	2.5 x pitch max	2	5.05	5.19	4.89	5.03
M6	12	45 degrees twin start	2.5 x pitch max	3	6.06	6.24	5.86	6.04
M8	10	45 degrees twin start	2.5 x pitch max	3	8.08	8.3	7.93	8.05

MACHINE SCREW THREAD

Technical Drawings

Technical Data

Screw diameter	Pitch	Major Diameter	Minor Diameter
M2	0.4	2	1.567
M2.5	0.45	2.5	2.013
M3	0.5	3	2.459
M4	0.7	4	3.242
M5	0.8	5	4.134
M6	1.0	6	4.917
M8	1.25	8	6.647