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Nook Industries provides a complete selection of inch and metric Ball Screws, Roller Screws, Acme Screws, Lead Screws, End Bearing Supports, Precision Locknuts, Worm Gear Screw Jacks, Electric Actuators, HRC 60 Linear Shafting, Linear Bearings and Pillow Blocks to the Linear Motion Industry.

ACME & LEAD
SCREW ASSEMBLIES

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STANDARD CATALOGED
METRIC TRAPEZOIDAL & SPEEDY
LEAD SCREW ASSEMBLIES

Repeatable positioning accuracy of 17.5µm / 25mm (Speedy Line) 6.25µm / 25mm (ISO Trapezoidal)
Standard diameters from 5mm to 65mm
Standard leads from 3mm to 200mm
Alloy and Stainless Steel Screws
Bronze and Plastic Nuts
Flanges and EZZE-MOUNT™ end bearing supports are available for a complete lead screw assembly

COMPARE METRIC LEAD SCREW ASSEMBLIES: sort metric leade screws by a category or view a side-by-side screw comparison. To view a specific screw and nut technical information click on that screw link below.

METRIC TRAPEZOIDAL LEAD Screw Size					Bronze Nut				Plastic Nut
DIA-TPI (mm)	LEAD (mm)	ROOT (mm)	HELIX	MATERIAL	STATIC LOAD (N)	DYN. LOAD (N)	TORQUE TO RAISE 1 kN (N-m)	EFF. %	STATIC LOAD (N)	DYN. LOAD (N)	TORQUE TO RAISE 1 kN (N-m)	EFF. %	PDF PAGE

Tr 10 x 3(1.5)	3.0	7.92	RH	Alloy/SS	11032	3447	1.090	44	1723	1723	.843	53	53
Tr 12 x 3	3.0	7.69	RH	Alloy/SS	15858	4963	1.119	33	2481	2481	.860	55	56
Tr 16 x 4	4.0	10.9	RH	Alloy/SS	28240	8825	1.560	41	4412	4412	1.188	53	61
Tr 20 x 4	4.0	14.9	RH	Alloy/SS	44128	13790	1.818	35	6895	6895	1.342	47	65
Tr 26 x 6	6.0	17.84	RH	Alloy/SS	74573	23304	2.469	39	11652	11652	1.859	51	70
Tr 40 x 7	7.0	30.95	RH	Alloy/SS	176512	55160	3.503	32	27580	27580	2.54	43	74
Tr 55 x 12	12.0	40.0	RH	Alloy	333718	104287	5.131	37	-	-	-	-	75
Tr 65 x 12	12.0	50.2	RH	Alloy	466084	145651	5.775	33	-	-	-	-	76

METRIC SPEEDY LEAD Screw Size					Bronze Nut				Plastic Nut
DIA-LEAD (mm)	LEAD (mm)	ROOT (mm)	HELIX	MATERIAL	STATIC LOAD (N)	DYN. LOAD (N)	TORQUE TO RAISE 1 kN (N-m)	EFF. %	STATIC LOAD (N)	DYN. LOAD (N)	TORQUE TO RAISE 1 kN (N-m)	EFF. %	PDF PAGE

5 x 5	5.0	3.6	RH	Alloy/SS	390	390	1.2	68.5	300	300	1.0	78.2	50
5 x 20	20.0	5.0	RH/LH	Alloy/SS	390	390	4.1	78.4	300	300	3.7	86.1	50
6 x 25	25.0	6.3	RH/LH	Alloy/SS	520	520	5.1	78.3	400	400	4.6	86.1	51
7.5 x 7.5	7.5	5.9	RH	Alloy/SS	585	585	1.7	69.4	450	450	1.5	78.9	51
8 x 10	10.0	5.5	RH	Alloy/SS	1040	1040	2.2	72.7	1040	1040	2.2	72.7	52
8 x 30	30.0	7.5	RH/LH	Alloy/SS	650	650	6.1	78.2	650	650	6.1	78.2	52
10 x 10	10.0	8.2	RH	Alloy/SS	780	780	22.9	69.8	600	600	2.0	79.2	54
10 x 12	12.0	7.1	RH/LH	Alloy/SS	1560	1560	2.6	72.5	1250	1250	2.3	81.3	54
10 x 35	35.0	8.9	RH/LH	Alloy/SS	780	780	7.1	78.2	600	600	6.5	86.1	54
10 x 50	50.0	7.4	RH/LH	Alloy/SS	1625	1625	10.6	75.1	1250	1250	9.4	84.2	54
11 x 40	40.0	10.2	RH/LH	Alloy/SS	1040	1040	8.1	78.2	800	800	7.4	86.0	55
11 x 60	60.0	9.1	RH/LH	Alloy/SS	1950	1950	13.5	74.8	1500	1500	11.4	84.0	55
11.2 x 30.5	30.5	8.0	RH	Alloy/SS	1820	1820	6.2	78.5	1400	1400	5.6	86.1	55
12 x 15	15.0	9.2	RH/LH	Alloy/SS	1820	1820	3.36	72.8	1400	1400	2.9	81.6	57
12 x 25	25.0	8.0	RH/LH	Alloy/SS	1950	1950	5.1	77.7	1500	1500	4.6	85.4	57
12 x 45	45.0	11.4	RH/LH	Alloy/SS	1040	1040	9.2	78.2	800	800	8.3	86.6	57
12.8 x 35.6	35.6	9.6	RH	Alloy/SS	2080	2080	7.2	78.5	1600	1600	6.6	86.1	57
13 x 20	20.0	8.8	RH	Alloy/SS	1690	1690	4.2	75.1	1300	1300	3.8	83.3	58
13 x 70	70.0	10.9	RH/LH	Alloy/SS	2275	2275	14.9	74.6	1750	1750	13.3	83.9	58
14 x 8	8.0	9.8	RH	Alloy/SS	1170	1170	2.2	58.6	900	900	1.8	69.9	59
14 x 18	18.0	11.4	RH/LH	Alloy/SS	2000	2000	3.9	73.1	1600	1600	3.5	81.8	59
14 x 30	6.0	10.1	RH	Alloy/SS	2275	2275	6.1	77.9	1700	1700	5.6	85.5	59
14.3 x 40.6	40.6	11.2	RH/LH	Alloy/SS	2340	2340	8.2	78.5	1800	1800	7.5	86.1	59
15 x 80	80.0	12.6	RH/LH	Alloy/SS	2600	2600	17.1	74.4	2000	2000	15.2	83.8	60
16 x 21	21.0	13.6	RH/LH	Alloy/SS	2340	2340	4.6	73.3	1800	1800	4.1	81.9	62
16 x 25	25.0	11.5	RH	Alloy/SS	2015	2015	5.3	75.5	1550	1550	4.7	83.6	62
16 x 90	90.0	14.3	RH/LH	Alloy/SS	2925	2925	19.3	74.3	2200	2200	9.4	86.1	62
17.6 x 50.8	50.8	14.4	RH	Alloy/SS	2860	2860	10.3	78.5	2200	2200	9.4	86.1	62
18 x 16	16.0	14.3	RH	Alloy/SS	1430	1430	3.8	67.6	1100	1100	3.3	77.4	63
18 x 24	24.0	15.7	RH/LH	Alloy/SS	2600	2600	5.2	73.4	2000	2000	4.6	82.0	63
18 x 40	40.0	14.1	RH/LH	Alloy/SS	2600	2600	8.2	78.0	2250	2250	7.4	85.6	63
18 x 100	100.0	16.2	RH/LH	Alloy/SS	3250	3250	21.4	74.3	2500	2500	19.0	83.7	63
19 x 30	30.0	14.2	RH	Alloy/SS	2340	2340	6.3	75.7	1800	1800	5.7	83.8	64
20 x 12	12.0	15.8	RH	Alloy/SS	1530	1530	3.2	59.7	1200	1200	2.7	70.8	66
20 x 45	45.0	16.1	RH	Alloy/SS	2500	2500	9.2	78.0	3250	3250	8.4	85.7	66
22 x 20	20.0	18.3	RH	Alloy/SS	1820	1820	4.7	68	1400	1400	4.1	77.7	67
23 x 30	30.0	20.0	RH/LH	Alloy/SS	3120	3120	6.5	73.6	2400	2400	5.8	82.2	68
24 x 55	55.0	20.1	RH	Alloy/SS	3900	3900	11.2	78.1	3000	3000	10.2	85.7	68
25.7 x 76.2	76.2	24.0	RH/LH	Alloy/SS	3640	3640	15.4	78.5	2800	2800	14.1	86.1	69
26 x 24	24.0	22.3	RH	Alloy/SS	2600	2600	5.6	68.3	2000	2000	4.9	78	71
26 x 60	60.0	22.2	RH	Alloy/SS	4225	4225	12.2	78.1	3250	3250	11.1	85.7	71
30 x 28	28.0	26.5	RH	Alloy/SS	2600	2600	6.5	68.4	2000	2000	5.7	78.1	72
30 x 50	50.0	25.3	RH	Alloy/SS	3640	3640	10.5	76.1	3750	3750	9.4	84.2	72
30 x 70	70.0	26.2	RH	Alloy/SS	4875	4875	14.2	78.2	3750	3750	13.0	85.8	72
34 x 80	80.0	30.2	RH	Alloy/SS	5525	5525	16.3	78.2	4250	4250	14.8	85.8	73
36 x 200	200.0	32.4	RH	Alloy/SS	5850	5850	43.2	73.6	4500	4500	38.2	83.3	73
DIA-LEAD (mm)	LEAD (mm)	ROOT (mm)	HELIX	MATERIAL	STATIC LOAD (N)	DYN. LOAD (N)	TORQUE TO RAISE 1 kN (N-m)	EFF. %	STATIC LOAD (N)	DYN. LOAD (N)	TORQUE TO RAISE 1 kN (N-m)	EFF. %	PDF PAGE
METRIC SPEEDy LEAD SCREW SIZE					Bronze Nut				Plastic Nut

LEAD SCREW CALCULATORS: Kilowatt | Plastic Nut PV Value | Critical Speed | Column Strength | Unit Converter

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NOOK INDUSTRIES, INC. - An ISO 9001:2008 Registered Company
4950 East 49th Street | Cleveland, Ohio 44125 | phone: (216) 271-7900 or (800) 321-7800 | fax: (216) 271-7020

Nook Industries provides a complete selection of inch and metric linear, mechanical and electromechanical actuators to the Linear Motion and Power Tarnsmission Industries. Modular Linear Actuators, Precision Profile Rails, Ball Screws, Roller Screws, Acme Screws, Lead Screws, Ball Splines, End Bearing Supports, Precision Locknuts, Worm Gear Screw Jacks, Electric Cylinder Actuators, HRC 60 Linear Shafting, Linear Slides, Bearings and Pillow Blocks.
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