303 Stainless Steel Lead Screws

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System of Measurement

Thread Size

Component

Length

Material

17-4 PH Stainless Steel

Travel Distance per Turn

Number of Thread Starts

Threading

Thread Pitch

Thread Direction

Thread Type

Metric Rounded Trapezoidal

Speed Ratio

Performance

RoHS

Hardness

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Tensile Strength

40,000 psi to 99,999 psi

Shaft Type

Acme Lead Screw

DFARS Specialty Metals

REACH

Export Control Classification Number (ECCN)

Flange Material

End Type

Height

Travel Length

Flange Thread Size

170 Products

Ultra-Precision Lead Screws and Nuts

Operating with less backlash (play) than Precision Acme Lead Screws and Nuts, these provide increased nut life and more reliable movement in automated systems. Also known as single-start and self-locking lead screws and nuts, they have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won’t unexpectedly move when the lead screw is at rest. All components are corrosion resistant for use in harsh environments. To ensure compatibility, select components that have the same thread type, thread size, and number of thread starts.

Lead Screws—Right-Hand Thread

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Lg.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Hardness	Tensile Strength, psi		Each
303 Stainless Steel



	1/8"-20.8	6"	Rounded Acme	1:1	1	0.048"	±0.0006"/1"	Brinell 160	90,000	6350K686	000000


	1/8"-20.8	1 ft.	Rounded Acme	1:1	1	0.048"	±0.0006"/1"	Brinell 160	90,000	6350K688	00000
	1/8"-41.7	6"	Rounded Acme	1:1	1	0.024"	±0.0006"/1"	Brinell 160	90,000	6350K685	00000
	1/8"-41.7	1 ft.	Rounded Acme	1:1	1	0.024"	±0.0006"/1"	Brinell 160	90,000	6350K687	00000
	9/64"-20.8	1 ft.	Rounded Acme	1:1	1	0.048"	±0.0006"/1"	Brinell 160	90,000	6350K691	00000
	9/64"-20.8	18"	Rounded Acme	1:1	1	0.048"	±0.0006"/1"	Brinell 160	90,000	6642K12	00000
	9/64"-41.7	6"	Rounded Acme	1:1	1	0.024"	±0.0006"/1"	Brinell 160	90,000	6350K689	00000
	9/64"-41.7	18"	Rounded Acme	1:1	1	0.024"	±0.0006"/1"	Brinell 160	90,000	6642K11	00000
	7/32"-20.8	9"	Rounded Acme	1:1	1	0.048"	±0.0006"/1"	Brinell 160	90,000	6350K692	00000
	7/32"-20.8	18"	Rounded Acme	1:1	1	0.048"	±0.0006"/1"	Brinell 160	90,000	6642K14	00000
	1/4"-20	1 ft.	Rounded Acme	1:1	1	0.05"	±0.0006"/1"	Brinell 160	90,000	6350K696	00000


	1/4"-20	3 ft.	Rounded Acme	1:1	1	0.05"	±0.0006"/1"	Brinell 160	90,000	6350K697	000000
	1/4"-20	6 ft.	Rounded Acme	1:1	1	0.05"	±0.0006"/1"	Brinell 160	90,000	6350K133	000000
	1/4"-40	1 ft.	Rounded Acme	1:1	1	0.025"	±0.0006"/1"	Brinell 160	90,000	6350K694	00000
	1/4"-40	3 ft.	Rounded Acme	1:1	1	0.025"	±0.0006"/1"	Brinell 160	90,000	6350K695	000000
	3/8"-10	3 ft.	Rounded Acme	1:1	1	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K704	000000
	3/8"-10	6 ft.	Rounded Acme	1:1	1	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K705	000000
	3/8"-20	3 ft.	Rounded Acme	1:1	1	0.05"	±0.0006"/1"	Brinell 160	90,000	6350K703	000000
	3/8"-20	6 ft.	Rounded Acme	1:1	1	0.05"	±0.0006"/1"	Brinell 160	90,000	6350K134	000000
	3/8"-40	3 ft.	Rounded Acme	1:1	1	0.025"	±0.0006"/1"	Brinell 160	90,000	6350K702	000000
	3/8"-40	6 ft.	Rounded Acme	1:1	1	0.025"	±0.0006"/1"	Brinell 160	90,000	6350K137	000000


	1/2"-8	3 ft.	Rounded Acme	1:1	1	0.125"	±0.0006"/1"	Brinell 160	90,000	6350K713	000000
	1/2"-8	6 ft.	Rounded Acme	1:1	1	0.125"	±0.0006"/1"	Brinell 160	90,000	6350K125	000000
	1/2"-10	3 ft.	Rounded Acme	1:1	1	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K712	000000
	1/2"-10	6 ft.	Rounded Acme	1:1	1	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K21	000000
	1/2"-20	3 ft.	Rounded Acme	1:1	1	0.05"	±0.0006"/1"	Brinell 160	90,000	6350K711	000000
	1/2"-20	6 ft.	Rounded Acme	1:1	1	0.05"	±0.0006"/1"	Brinell 160	90,000	6350K135	000000
	5/8"-10	3 ft.	Rounded Acme	1:1	1	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K718	000000
	5/8"-10	6 ft.	Rounded Acme	1:1	1	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K129	000000
	3/4"-10	3 ft.	Rounded Acme	1:1	1	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K722	000000
	3/4"-10	6 ft.	Rounded Acme	1:1	1	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K131	000000

Fast-Travel Ultra-Precision Lead Screws and Nuts

Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start. Operating with less backlash (play) than Precision Acme Lead Screws and Nuts, these lead screws and nuts provide increased nut life and more reliable movement in automated systems. All components are corrosion resistant for use in harsh environments. To ensure compatibility, select components that have the same thread type, thread size, and number of thread starts.

Lead Screws—Right-Hand Thread

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Lg.	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn	Accuracy for Travel Distance per Turn	Hardness	Tensile Strength, psi		Each
303 Stainless Steel



	9/64"-20.8	18"	Rounded Acme	2:1	2	0.096"	±0.0006"/1"	Brinell 160	90,000	6642K13	000000


	5/32"-21.3	18"	Acme	2:1	2	0.094"	±0.0006"/1"	Brinell 160	90,000	6642K15	00000
	3/16"-42.7	18"	Rounded Acme	16:1	16	0.375"	±0.0006"/1"	Brinell 160	90,000	6642K47	00000
	7/32"-20.8	9"	Rounded Acme	4:1	4	0.192"	±0.0006"/1"	Brinell 160	90,000	6350K693	00000
	7/32"-20.8	18"	Rounded Acme	4:1	4	0.192"	±0.0006"/1"	Brinell 160	90,000	6642K16	00000
	1/4"-8	3 ft.	Rounded Acme	8:1	8	1"	±0.0006"/1"	Brinell 160	90,000	6350K701	000000
	1/4"-8	6 ft.	Rounded Acme	8:1	8	1"	±0.0006"/1"	Brinell 160	90,000	6350K12	000000
	1/4"-16	3 ft.	Rounded Acme	4:1	4	0.25"	±0.0006"/1"	Brinell 160	90,000	6350K699	000000
	1/4"-16	6 ft.	Rounded Acme	4:1	4	0.25"	±0.0006"/1"	Brinell 160	90,000	6350K11	000000
	1/4"-20	3 ft.	Rounded Acme	2:1	2	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K698	00000
	1/4"-20	6 ft.	Rounded Acme	2:1	2	0.1"	±0.0006"/1"	Brinell 160	90,000	6350K128	000000


	3/8"-5	3 ft.	Rounded Acme	5:1	5	1"	±0.0006"/1"	Brinell 160	90,000	6350K709	000000
	3/8"-5	6 ft.	Rounded Acme	5:1	5	1"	±0.0006"/1"	Brinell 160	90,000	6350K16	000000
	3/8"-8	3 ft.	Rounded Acme	2:1	2	0.25"	±0.0006"/1"	Brinell 160	90,000	6350K707	000000
	3/8"-8	3 ft.	Rounded Acme	4:1	4	0.5"	±0.0006"/1"	Brinell 160	90,000	6350K708	000000
	3/8"-8	6 ft.	Rounded Acme	4:1	4	0.5"	±0.0006"/1"	Brinell 160	90,000	6350K15	000000
	3/8"-10	3 ft.	Rounded Acme	2:1	2	0.2"	±0.0006"/1"	Brinell 160	90,000	6350K706	000000
	3/8"-10	6 ft.	Rounded Acme	2:1	2	0.2"	±0.0006"/1"	Brinell 160	90,000	6350K14	000000
	3/8"-12	6 ft.	Rounded Acme	3:1	3	0.25"	±0.0006"/1"	Brinell 160	90,000	6350K113	000000
	1/2"-8	3 ft.	Rounded Acme	2:1	2	0.25"	±0.0006"/1"	Brinell 160	90,000	6350K715	000000
	1/2"-8	3 ft.	Rounded Acme	4:1	4	0.5"	±0.0006"/1"	Brinell 160	90,000	6350K716	000000


	1/2"-8	3 ft.	Rounded Acme	8:1	8	1"	±0.0006"/1"	Brinell 160	90,000	6350K717	000000
	1/2"-8	6 ft.	Rounded Acme	2:1	2	0.25"	±0.0006"/1"	Brinell 160	90,000	6350K115	000000
	1/2"-8	6 ft.	Rounded Acme	4:1	4	0.5"	±0.0006"/1"	Brinell 160	90,000	6350K23	000000
	1/2"-8	6 ft.	Rounded Acme	8:1	8	1"	±0.0006"/1"	Brinell 160	90,000	6350K24	000000
	1/2"-10	3 ft.	Rounded Acme	2:1	2	0.2"	±0.0006"/1"	Brinell 160	90,000	6350K714	000000
	1/2"-10	6 ft.	Rounded Acme	2:1	2	0.2"	±0.0006"/1"	Brinell 160	90,000	6350K22	000000
	5/8"-6	3 ft.	Rounded Acme	12:1	12	2"	±0.0006"/1"	Brinell 160	90,000	6350K721	000000
	5/8"-6	6 ft.	Rounded Acme	12:1	12	2"	±0.0006"/1"	Brinell 160	90,000	6350K102	000000
	5/8"-8	3 ft.	Rounded Acme	4:1	4	0.5"	±0.0006"/1"	Brinell 160	90,000	6350K719	000000
	5/8"-8	6 ft.	Rounded Acme	4:1	4	0.5"	±0.0006"/1"	Brinell 160	90,000	6350K107	000000


	3/4"-8	3 ft.	Rounded Acme	2:1	2	0.25"	±0.0006"/1"	Brinell 160	90,000	6350K723	000000
	3/4"-8	3 ft.	Rounded Acme	8:1	8	1"	±0.0006"/1"	Brinell 160	90,000	6350K724	000000
	3/4"-8	6 ft.	Rounded Acme	2:1	2	0.25"	±0.0006"/1"	Brinell 160	90,000	6350K25	000000
	3/4"-8	6 ft.	Rounded Acme	8:1	8	1"	±0.0006"/1"	Brinell 160	90,000	6350K725	000000

Metric Fast-Travel Ultra-Precision Lead Screws and Nuts

Image of ProductInUse. Front orientation. Contains Inset. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts.

Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start. Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these lead screws and nuts provide increased nut life and more reliable movement in automated systems. To ensure compatibility, select components that have the same thread size and number of thread starts.

Lead Screw—Right-Hand Thread

303 Stainless Steel—303 stainless steel lead screws have good corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Lg., mm	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Hardness	Tensile Strength, psi		Each
303 Stainless Steel



	M2 × 0.5 mm	50	Metric Rounded Trapezoidal	2:1	2	1	±0.089 mm/300 mm	Brinell 160	90,000	97783A110	000000


	M2 × 0.5 mm	100	Metric Rounded Trapezoidal	2:1	2	1	±0.089 mm/300 mm	Brinell 160	90,000	97783A120	00000
	M4 × 1.25 mm	75	Metric Rounded Trapezoidal	8:1	8	10	±0.089 mm/300 mm	Brinell 160	90,000	97783A130	00000
	M4 × 1.25 mm	150	Metric Rounded Trapezoidal	8:1	8	10	±0.089 mm/300 mm	Brinell 160	90,000	97783A140	00000

Metric Ultra-Precision Lead Screws and Nuts

Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these provide increased nut life and more reliable movement in automated systems. Also known as single-start and self-locking lead screws and nuts, they have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won't unexpectedly move when the lead screw is at rest. To ensure compatibility, select components that have the same thread size, thread type, thread size, thread pitch, and number of thread starts.

Lead Screw—Right-Hand Thread

303 Stainless Steel—303 stainless steel lead screws have good corrosion resistance.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.

	Lg., mm	Thread Type	Speed Ratio	No. of Thread Starts	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Hardness	Tensile Strength, psi		Each
303 Stainless Steel



	M2 × 0.5 mm	50	Metric Rounded Trapezoidal	1:1	1	0.5	±0.089 mm/300 mm	Brinell 160	90,000	7549K51	000000


	M2 × 0.5 mm	100	Metric Rounded Trapezoidal	1:1	1	0.5	±0.089 mm/300 mm	Brinell 160	90,000	7549K52	00000
	M4 × 0.3 mm	75	Metric Rounded Trapezoidal	1:1	1	0.3	±0.089 mm/300 mm	Brinell 160	90,000	7549K53	00000
	M4 × 0.3 mm	150	Metric Rounded Trapezoidal	1:1	1	0.3	±0.089 mm/300 mm	Brinell 160	90,000	7549K54	00000

Flanges for Precision Acme Lead Screw Nuts

Thread onto an externally threaded acme nut to create a custom flange nut.

303 Stainless Steel Flange—303 stainless steel flanges have good corrosion resistance.

	Flange Dia.	Flange Thk.	Bolt Circle Dia.	Flange Hardness		Each
303 Stainless Steel Flange



	9/16"-18	1 39/64"	13/32"	1 1/8"	Brinell 140	1329K11	000000


	15/16"-16	2 5/8"	17/32"	2 3/32"	Brinell 140	1329K12	00000
	1"-18	2 5/8"	17/32"	2 3/32"	Brinell 140	1329K13	00000
	1 3/8"-16	2 49/64"	33/64"	2 17/64"	Brinell 140	1329K14	00000
	1 31/32"-18	4 13/64"	53/64"	3 7/16"	Brinell 140	1329K15	000000
	2 35/64"-18	4 15/16"	29/32"	4 1/16"	Brinell 140	1329K16	000000

Clamping Acme Lead Screw Collars

Thread these one-piece collars onto an Acme lead screw to separate and position components, or use them as an end stop to limit travel. Tighten the clamping screw to secure.

To ensure compatibility, please select a collar that has the same thread type, direction, size, and number of thread starts as your lead screw.

303 Stainless Steel—303 stainless steel collars have good corrosion resistance.

	No. of Thread Starts	Hardness		Each
Right-Hand Thread







	303 Stainless Steel

	1/4"-16	5/8"	9/32"	1	Brinell 228	2228N21	000000


	3/8"-12	7/8"	11/32"	1	Brinell 228	2228N22	00000
	3/8"-16	7/8"	11/32"	1	Brinell 228	2228N23	00000
	1/2"-10	1 1/8"	7/16"	1	Brinell 228	2228N11	00000
	5/8"-8	1 5/16"	7/16"	1	Brinell 228	2228N12	00000
	5/8"-10	1 5/16"	7/16"	1	Brinell 228	2228N24	00000
	3/4"-6	1 1/2"	1/2"	1	Brinell 228	2228N13	00000
	3/4"-10	1 1/2"	1/2"	1	Brinell 228	2228N14	00000
	1"-4	1 3/4"	1/2"	1	Brinell 228	2228N25	00000
	1"-5	1 3/4"	1/2"	1	Brinell 228	2228N15	00000
	1"-10	1 3/4"	1/2"	1	Brinell 228	2228N26	00000

Stepper Motors with Linear Actuation

Instead of a shaft, these stepper motors have a lead screw that converts rotational motion to linear motion. Moving in increments smaller than the thickness of a sheet of paper, they're ideal for applications that require fine motion control, such as positioning electrical components on a circuit board. They move in equal steps and hold their position when stationary, so they do not require encoders, sensors, or other position feedback devices. The lead screw is built into the motor, so there are fewer points of failure than systems that use a shaft coupling to connect the lead screw. All are bipolar hybrid stepper motors, which deliver greater torque, precision, and efficiency than other types of stepper motors.

All motors require a controller and drive (not included).

External Lead Screw—External lead screw stepper motors work similar to a traditional linear motion system; attach the load to the flanged nut, which travels back and forth along the lead screw.

Pass-Through Lead Screw—Pass-through lead screw stepper motors give you the most design versatility because there are two ways to move your load: on the motor body or on the ends of the lead screw. The motor moves when the lead screw is fixed or the lead screw moves when the motor body is fixed.

Travel Distance per Full Step—Travel distance per full step determines the control you have over the motor’s positioning. The smaller the measurement, the finer positioning control you have, but the more steps it will take to go the same distance.

Dynamic Load Capacity—Dynamic load capacity is the maximum load a motor can move. If you increase the speed, the dynamic load capacity decreases. Click on a part number and select "Product Detail" to view the load-speed chart and confirm the motor will work for your application.

Full Step Increment—Full step increment is the rotation of the shaft from one position to the next. A smaller full step increment means the rotor has more teeth, producing smoother and more precise motion. 1.8° is considered standard.

									Overall					Temp. Range, ° F
	Travel Distance per Full Step	Travel Lg.	Dynamic Load Cap., lb.	Max. Speed, in/sec	Max. Current per Phase, amp	Full Step Increment	Stepper Motor Polarity	No. of Wire Leads	Lg.	Wd.	Ht.	Lead Screw Lg.	Thread Size	Min.	Max.		Each
External Lead Screw







				NEMA 8 Frame Size

				0.00006"	3.3"	10	0.1	0.4	1.8°	Bipolar	4	5.1"	0.8"	0.8"	4"	9/64"-83.3	35	130	8677N37	0000000


				0.00006"	7.3"	10	0.1	0.4	1.8°	Bipolar	4	9.1"	0.8"	0.8"	8"	9/64"-83.3	35	130	8677N38	000000
				0.00019"	3.3"	10	0.4	0.4	1.8°	Bipolar	4	5.1"	0.8"	0.8"	4"	M3.5 × 1 mm	35	130	8677N39	000000
				0.00019"	7.3"	10	0.4	0.4	1.8°	Bipolar	4	9.1"	0.8"	0.8"	8"	M3.5 × 1 mm	35	130	8677N41	000000
				0.00078"	3.3"	3	1.8	0.4	1.8°	Bipolar	4	5.1"	0.8"	0.8"	4"	M3.5 × 1 mm	35	130	8677N42	000000
				0.00078"	3.3"	7	1.5	1.3	1.8°	Bipolar	4	5.5"	0.8"	0.8"	4"	M3.5 × 1 mm	35	130	8677N43	000000
				0.00078"	7.3"	3	1.8	0.4	1.8°	Bipolar	4	9.1"	0.8"	0.8"	8"	M3.5 × 1 mm	35	130	8677N44	000000
				0.00078"	7.3"	7	1.5	1.3	1.8°	Bipolar	4	9.5"	0.8"	0.8"	8"	M3.5 × 1 mm	35	130	8677N45	000000




						NEMA 14 Frame Size

						0.00024"	5.2"	50	0.3	1.2	1.8°	Bipolar	4	7.4"	1.4"	1.4"	6"	7/32"-48	35	130	8677N46	000000


						0.00024"	11.2"	50	0.3	1.2	1.8°	Bipolar	4	13.4"	1.4"	1.4"	12"	7/32"-48	35	130	8677N47	000000
						0.00125"	3.2"	28	2	2	1.8°	Bipolar	4	5.7"	1.4"	1.4"	4"	1/4"-16	35	130	8677N48	000000
						0.00125"	5.2"	16	1.7	1.2	1.8°	Bipolar	4	7.4"	1.4"	1.4"	6"	1/4"-16	35	130	8677N49	000000
						0.00125"	7.2"	28	2	2	1.8°	Bipolar	4	9.7"	1.4"	1.4"	8"	1/4"-16	35	130	8677N51	000000
						0.00125"	11.2"	16	1.7	1.2	1.8°	Bipolar	4	13.4"	1.4"	1.4"	12"	1/4"-16	35	130	8677N52	000000




								NEMA 17 Frame Size

								0.0003125"	5.2"	50	0.4	1.5	1.8°	Bipolar	4	7.3"	1.7"	1.7"	6"	1/4"-16	35	130	8677N53	000000


								0.0003125"	11.2"	50	0.4	1.5	1.8°	Bipolar	4	13.3"	1.7"	1.7"	12"	1/4"-16	35	130	8677N54	000000
								0.000625"	5.2"	50	1.2	1.5	1.8°	Bipolar	4	7.3"	1.7"	1.7"	6"	1/4"-16	35	130	8677N17	000000
								0.000625"	5.2"	75	1.1	2.6	1.8°	Bipolar	4	7.9"	1.7"	1.7"	6"	1/4"-16	35	130	8677N22	000000
								0.000625"	11.2"	50	1.2	1.5	1.8°	Bipolar	4	13.3"	1.7"	1.7"	12"	1/4"-16	35	130	8677N18	000000
								0.000625"	11.2"	75	1.1	2.6	1.8°	Bipolar	4	13.9"	1.7"	1.7"	12"	1/4"-16	35	130	8677N23	000000
								0.00125"	5.2"	25	2	1.5	1.8°	Bipolar	4	7.3"	1.7"	1.7"	6"	1/4"-16	35	130	8677N19	000000
								0.00125"	5.2"	60	2.1	2.6	1.8°	Bipolar	4	7.9"	1.7"	1.7"	6"	1/4"-16	35	130	8677N24	000000
								0.00125"	11.2"	25	2	1.5	1.8°	Bipolar	4	13.3"	1.7"	1.7"	12"	1/4"-16	35	130	8677N21	000000
								0.00125"	11.2"	60	2.1	2.6	1.8°	Bipolar	4	13.9"	1.7"	1.7"	12"	1/4"-16	35	130	8677N25	000000
								0.0025"	6.2"	28	3.9	2.6	1.8°	Bipolar	4	7.9"	1.7"	1.7"	6"	1/4"-16	35	130	8677N55	000000


								0.0025"	11.2"	28	3.9	2.6	1.8°	Bipolar	4	13.9"	1.7"	1.7"	12"	1/4"-16	35	130	8677N56	000000




										NEMA 23 Frame Size

										0.0001562"	5"	90	0.2	2	0.9°	Bipolar	4	7.8"	2.3"	2.3"	6"	3/8"-16	35	130	8677N57	000000


0.0001562"										11"	90	0.2	2	0.9°	Bipolar	4	13.8"	2.3"	2.3"	12"	3/8"-16	35	130	8677N58	000000
0.0003125"	5"									200	0.4	2	1.8°	Bipolar	4	7.8"	2.3"	2.3"	6"	3/8"-16	35	130	8677N59	000000
0.0003125"	11"									200	0.5	2	1.8°	Bipolar	4	13.8"	2.3"	2.3"	12"	3/8"-16	35	130	8677N28	000000
0.0003125"	15"									200	0.4	2	1.8°	Bipolar	4	17.8"	2.3"	2.3"	16"	3/8"-16	35	130	8677N61	000000
0.0005"	5"									196	0.5	2	1.8°	Bipolar	4	7.8"	2.3"	2.3"	6"	3/8"-10	35	130	8677N62	000000
0.0005"	11"	200								0.8	2	1.8°	Bipolar	4	13.8"	2.3"	2.3"	12"	3/8"-10	35	130	8677N27	000000
0.0005"	15"	196	0.5							2	1.8°	Bipolar	4	17.8"	2.3"	2.3"	16"	3/8"-10	35	130	8677N63	000000
0.002"	5"	70	2.6							2	1.8°	Bipolar	4	7.8"	2.3"	2.3"	6"	3/8"-10	35	130	8677N64	000000
0.002"	11"	75	3							2	1.8°	Bipolar	4	13.8"	2.3"	2.3"	12"	3/8"-10	35	130	8677N26	000000
0.002"	15"	70	2.6							2	1.8°	Bipolar	4	17.8"	2.3"	2.3"	16"	3/8"-10	35	130	8677N65	000000


Pass-Through Lead Screw







										NEMA 8 Frame Size

				0.00006"						2.8"	10	0.1	0.4	1.8°	Bipolar	4	4.1"	0.8"	0.8"	4"	9/64"-83.3	35	130	8677N66	000000


				0.00006"	6.8"					10	0.1	0.4	1.8°	Bipolar	4	8.1"	0.8"	0.8"	8"	9/64"-83.3	35	130	8677N67	000000
				0.00019"	2.8"					10	0.4	0.4	1.8°	Bipolar	4	4.1"	0.8"	0.8"	4"	M3.5 × 1 mm	35	130	8677N68	000000
				0.00019"	6.8"					10	0.4	0.4	1.8°	Bipolar	4	8.1"	0.8"	0.8"	8"	M3.5 × 1 mm	35	130	8677N69	000000
				0.00078"	2.4"					3	1.8	1.3	1.8°	Bipolar	4	4.1"	0.8"	0.8"	4"	M3.5 × 1 mm	35	130	8677N72	000000
				0.00078"	2.8"					3	1.8	0.4	1.8°	Bipolar	4	4.1"	0.8"	0.8"	4"	M3.5 × 1 mm	35	130	8677N71	000000
				0.00078"	6.8"					3	1.8	0.4	1.8°	Bipolar	4	8.1"	0.8"	0.8"	8"	M3.5 × 1 mm	35	130	8677N73	000000
				0.00078"	6.8"					3	1.8	1.3	1.8°	Bipolar	4	8.1"	0.8"	0.8"	8"	M3.5 × 1 mm	35	130	8677N74	000000




						NEMA 14 Frame Size

						0.00024"	4.5"			50	0.3	1.2	1.8°	Bipolar	4	6.3"	1.4"	1.4"	6"	7/32"-48	35	130	8677N75	000000


						0.00024"	10.5"			50	0.3	1.2	1.8°	Bipolar	4	12.3"	1.4"	1.4"	12"	7/32"-48	35	130	8677N76	000000
						0.00125"	4.5"			16	1.7	1.2	1.8°	Bipolar	4	6.3"	1.4"	1.4"	6"	1/4"-16	35	130	8677N77	000000
						0.00125"	10.5"			16	1.7	1.2	1.8°	Bipolar	4	12.3"	1.4"	1.4"	12"	1/4"-16	35	130	8677N78	000000




										NEMA 17 Frame Size

										0.0003125"	4.6"	50	0.4	1.5	1.8°	Bipolar	4	6.3"	1.7"	1.7"	6"	1/4"-16	35	130	8677N79	000000


										0.0003125"	10.5"	50	0.4	1.5	1.8°	Bipolar	4	12.3"	1.7"	1.7"	12"	1/4"-16	35	130	8677N81	000000
										0.000625"	4"	75	0.9	2.6	1.8°	Bipolar	4	6.3"	1.7"	1.7"	6"	1/4"-16	35	130	8677N83	000000
										0.000625"	4.6"	50	0.8	1.5	1.8°	Bipolar	4	6.3"	1.7"	1.7"	6"	1/4"-16	35	130	8677N82	000000
										0.000625"	10.1"	75	1.1	2.6	1.8°	Bipolar	4	12.3"	1.7"	1.7"	12"	1/4"-16	35	130	8677N32	000000
										0.000625"	10.6"	50	1.2	1.5	1.8°	Bipolar	4	12.3"	1.7"	1.7"	12"	1/4"-16	35	130	8677N29	000000
										0.000625"	16"	75	0.9	2.6	1.8°	Bipolar	4	18.3"	1.7"	1.7"	18"	1/4"-16	35	130	8677N85	000000
								0.000625"		16.6"	50	0.8	1.5	1.8°	Bipolar	4	18.3"	1.7"	1.7"	18"	1/4"-16	35	130	8677N84	000000
								0.00125"	4"	61	1.9	2.6	1.8°	Bipolar	4	6.3"	1.7"	1.7"	6"	1/4"-16	35	130	8677N87	000000
								0.00125"	4.6"	24	1.9	1.5	1.8°	Bipolar	4	6.3"	1.7"	1.7"	6"	1/4"-16	35	130	8677N86	000000
								0.00125"	10.1"	60	2.1	2.6	1.8°	Bipolar	4	12.3"	1.7"	1.7"	12"	1/4"-16	35	130	8677N33	000000


								0.00125"	10.6"	25	2	1.5	1.8°	Bipolar	4	12.3"	1.7"	1.7"	12"	1/4"-16	35	130	8677N31	000000
								0.00125"	16"	61	1.9	2.6	1.8°	Bipolar	4	18.3"	1.7"	1.7"	18"	1/4"-16	35	130	8677N89	000000
								0.00125"	16.6"	24	1.9	1.5	1.8°	Bipolar	4	18.3"	1.7"	1.7"	18"	1/4"-16	35	130	8677N88	000000
								0.0025"	4"	28	3.9	2.6	1.8°	Bipolar	4	6.3"	1.7"	1.7"	6"	1/4"-16	35	130	8677N91	000000
								0.0025"	10"	28	3.9	2.6	1.8°	Bipolar	4	12.3"	1.7"	1.7"	12"	1/4"-16	35	130	8677N92	000000




										NEMA 23 Frame Size

										0.0001562"	4.1"	90	0.2	2	0.9°	Bipolar	4	6.5"	2.3"	2.3"	6"	3/8"-16	35	130	8677N93	000000


0.0001562"	10.1"									90	0.2	2	0.9°	Bipolar	4	12.5"	2.3"	2.3"	12"	3/8"-16	35	130	8677N94	000000
0.0003125"	4.1"									200	0.4	2	1.8°	Bipolar	4	6.5"	2.3"	2.3"	6"	3/8"-16	35	130	8677N95	000000
0.0003125"	10.2"									200	0.5	2	1.8°	Bipolar	4	12.5"	2.3"	2.3"	12"	3/8"-16	35	130	8677N36	000000
0.0003125"	22.1"	200								0.4	2	1.8°	Bipolar	4	24.5"	2.3"	2.3"	24"	3/8"-16	35	130	8677N96	000000
0.0005"	4.1"	196	0.5							2	1.8°	Bipolar	4	6.5"	2.3"	2.3"	6"	3/8"-10	35	130	8677N97	000000
0.0005"	10.2"	200	0.8							2	1.8°	Bipolar	4	12.5"	2.3"	2.3"	12"	3/8"-10	35	130	8677N35	000000
0.0005"	22.1"	196	0.5							2	1.8°	Bipolar	4	24.5"	2.3"	2.3"	24"	3/8"-10	35	130	8677N98	000000
0.002"	4.1"	70	2.6							2	1.8°	Bipolar	4	6.5"	2.3"	2.3"	6"	3/8"-10	35	130	8677N99	000000
0.002"	10.2"	75	3							2	1.8°	Bipolar	4	12.5"	2.3"	2.3"	12"	3/8"-10	35	130	8677N34	000000
0.002"	22.1"	70	2.6							2	1.8°	Bipolar	4	24.5"	2.3"	2.3"	24"	3/8"-10	35	130	8677N111	000000

Two-Piece Clamping Acme Lead Screw Collars

Mount these two-piece collars anywhere on an Acme lead screw without removing components. Use them to separate and position components or as an end stop to limit travel. Tighten the clamping screw to secure.

To ensure compatibility, please select a collar that has the same thread type, direction, size, and number of thread starts as your lead screw.

303 Stainless Steel—303 stainless steel collars have good corrosion resistance.

	No. of Thread Starts	Hardness		Each
Right-Hand Thread







	303 Stainless Steel

	1/2"-10	1 1/8"	13/32"	1	Brinell 228	2207N19	000000


	3/4"-6	1 1/2"	1/2"	1	Brinell 228	2207N21	00000
	1"-5	1 3/4"	1/2"	1	Brinell 228	2207N22	00000