Worms - Module Worm Thread Dimensions

Table 38

ARow	BTypical Pitch Diameter (inches)	CModule Pitch	DPitch (mm)	EPitch (inch)	FDiametrical Pitch Equiv.	GAddendum (mm)	HWhole Depth (mm)	GWorm Thread Profile (20° Pressure Angle)
	80.0	6.00	18.85	.742	4.23	6.00	13.50
	70.0	5.00	15.71	.618	5.08	5.00	11.25
	62.0	4.00	12.57	.495	6.35	4.00	9.00
	53.0	3.50	11.00	.433	7.26	3.50	7.88
	44.0	3.00	9.42	.371	8.47	3.00	6.75
	37.0	2.50	7.85	.309	10.16	2.50	5.63
	34.0	2.25	7.07	.278	11.29	2.25	5.06
	31.0	2.00	6.28	.247	12.70	2.00	4.50
	28.0	1.75	5.50	.216	14.51	1.75	3.94
	25.0	1.50	4.71	.186	16.93	1.50	3.38
	20.0	1.25	3.93	.155	20.32	1.25	2.81
	16.0	1.00	3.14	.124	25.40	1.00	2.25
	14.0	0.90	2.83	.111	28.22	0.90	2.03
	12.0	0.80	2.51	.099	31.75	0.80	1.80
	11.0	0.70	2.20	.087	36.29	0.70	1.58
	10.0	0.60	1.88	.074	42.33	0.60	1.35
	9.0	0.50	1.57	.062	50.80	0.50	1.13
	8.5	0.40	1.26	.049	63.50	0.40	0.90