7/16" (11 mm) KERK® LEAD SCREW ASSEMBLIES Part Number Construction
	Lead Screw Size List 1/8" (3.2 mm) 0.132" (3.3 mm) 9/64" (3.6 mm) 5/32" (4 mm) 3/16" (5 mm) 7/32" (5.6 mm) 1/4" (6 mm) 5/16" (8 mm) 3/8" (10 mm) 7/16" (11 mm) 1/2" (13 mm) 5/8" (16 mm) 3/4" (19 mm) 7/8" (22 mm) 15/16" (24 mm)

Nominal Screw Diameter: 7/16" (11 mm)

Compatible Lead Screw Nut Styles: ZBX, ZBA, WDG, NTB, BFW

Diameter		Diameter Code	Lead		Lead Code	Left Hand Avail.	Outside Diameter (For Reference)		Root Diameter (For Reference)		Efficiency %*
inches	mm		in	mm			in	mm	in	mm
7/16	11	043	0.050	1.27	0050		0.437	11.10	0.362	9.19	30
			0.0625	1.59	0063	√	0.436	11.07	0.358	9.09	38
			0.079	2.00	0079		0.472	11.99	0.374	9.50	42
			0.111	2.82	0111		0.437	11.10	0.327	8.31	52
			0.118	3.00	0118		0.438	11.13	0.363	9.22	52
			0.125	3.18	0125		0.438	11.13	0.357	9.07	54
			0.197	5.00	0197		0.438	11.13	0.315	8.00	65
			0.263	6.00	0236		0.433	11.00	0.313	7.95	70
			0.250	6.35	0250		0.442	11.23	0.325	8.26	70
			0.307	7.80	0307		0.445	11.30	0.343	8.71	73
			0.325	8.26	0325		0.444	11.28	0.342	8.69	74
			0.394	10.00	0394		0.446	11.33	0.331	8.41	78
			0.463	11.76	0463		0.444	11.28	0.343	8.71	79
			0.472	12.00	0472		0.438	11.13	0.318	8.08	80
			0.500	12.70	0500		0.452	11.48	0.327	8.31	80
			0.615	15.62	0615		0.475	12.07	0.376	9.55	82

*Listed efficiencies are theoretical values based on Kerkote^® TFE coated lead screws.

Shaded areas have been translated from their designed inch or mm dimension to an equivalent mm or inch dimension.