Ball Nut Lead Screws | McMaster-Carr

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Ball Screw with One Machined End

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1,000 lb. to 1,999 lb.

2,000 lb. to 9,999 lb.

10,000 lb. to 19,999 lb.

20,000 lb. or greater

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Number of Thread Starts

Mounting Hole Thread Size

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Flange Material

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73 Products

Ball Screws and Nuts


A	Ball Nuts, Externally Threaded Nut, Style B	Ball Nuts Flange Nut Style C

Ball Nuts Flange Nut Style D	Ball Nuts Flange Nut Style E

Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. Also known as single-start ball screws and nuts, they have a single thread that runs the length of the screw. They operate with more torque than fast-travel ball screws and nuts. To ensure compatibility, select components that have the same thread direction and size. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.

Ball Screws with Flange Ball Nut—Right-Hand Threaded

Root diameter indicates the diameter the ball screw will be after machining away the threads.

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

		Ball Screw			Flange Ball Nut, mm
	Thread Size	Lg., mm	Root Dia., mm	Tensile Strength, psi	Lg.	Dia.	Lg. Tolerance Type	No. of Thread Starts	Travel Distance per Turn, mm	Accuracy for Travel Distance per Turn	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash, mm	Temp. Range, ° F		Each
Carbon Steel Ball Screw with Alloy Steel Flange Ball Nut



		M6	150	5.3	21,000	21	13	Plus	1	1	±0.210 mm/300 mm	Rockwell C58	150	0.05	5 to 175	6624K66	0000000


		M6	250	5.3	21,000	21	13	Plus	1	1	±0.210 mm/300 mm	Rockwell C58	150	0.05	5 to 175	6638K1	000000
		M8	150	6.6	21,000	28	20	Plus	1	2	±0.210 mm/300 mm	Rockwell C58	470	0.05	5 to 175	6624K67	000000
		M8	250	6.6	21,000	28	20	Plus	1	2	±0.210 mm/300 mm	Rockwell C58	470	0.05	5 to 175	6638K3	000000
		M10	200	8.6	21,000	28	23	Plus	1	2	±0.210 mm/300 mm	Rockwell C58	510	0.05	5 to 175	6624K68	000000
		M10	300	8.6	21,000	28	23	Plus	1	2	±0.210 mm/300 mm	Rockwell C58	510	0.05	5 to 175	6638K7	000000
		M12	200	10.6	21,000	30	25	Plus	1	2	±0.210 mm/300 mm	Rockwell C58	560	0.05	5 to 175	6638K9	000000
		M12	300	10.6	21,000	30	25	Plus	1	2	±0.210 mm/300 mm	Rockwell C58	560	0.05	5 to 175	6638K11	000000

Externally Threaded Ball Nuts—Right-Hand Threaded


A	Style B

Black-Oxide Alloy Steel—Black-oxide alloy steel ball nuts have mild corrosion resistance.

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

Wipers—Secure a way wiper on the end of a ball nut to sweep chips and other contaminants out of the way as it moves across the ball screw.

	Ball Screw Nuts															Wipers
	Style	Thread Size	Lg.	Wd.	Ht.	Dia.	No. of Thread Starts	Travel Distance per Turn	External Thread Size	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash	Temp. Range, ° F		Each		Each
Black-Oxide Alloy Steel



		A	3/8"-8	1"	—	—	3/4"	1	0.125"	11/16"-28	Rockwell C56	170	0.015"	-65 to 300	3405N458	0000000	———	0


		A	5/8"-5	1 45/64"	1"	1"	—	1	0.2"	15/16"-16	Rockwell C56	820	0.015"	-65 to 300	3405N481	00000	———	0
		A	3/4"-5	2 7/8"	—	—	1 1/4"	1	0.2"	1 1/8"-18	Rockwell C56	1,900	0.015"	-65 to 300	3405N459	00000	2528N34	000000
		A	1 1/2"-2	5 9/16"	—	—	2 5/8"	1	0.5"	2 23/64"-18	Rockwell C56	12,900	0.015"	-65 to 300	3405N461	000000	———	0
		A	1 1/2"-4	3"	—	—	2 3/32"	1	0.25"	1 31/32"-18	Rockwell C56	4,250	0.015"	-65 to 300	3405N462	000000	———	0
		A	2 1/4"-2	6 11/16"	—	—	3 3/8"	1	0.5"	3.137"-12	Rockwell C58 to Rockwell C62	21,306	0.015"	-65 to 300	3405N731	00000000	———	0
		B	1"-4	2 11/32"	1 1/2"	1 1/2"	—	1	0.25"	1 9/16"-18	Rockwell C56	1,625	0.015"	-65 to 300	3405N463	000000	———	0

Externally Threaded Ball Nuts—Left-Hand Threaded

Image of Product. A. Front orientation. Contains Annotated. Ball Screws and Nuts. Ball Screws and Nuts , Externally Threaded Nut, Ball Nuts, Style A.

Black-Oxide Alloy Steel—Black-oxide alloy steel ball nuts have mild corrosion resistance.

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

	Thread Size	Lg.	Wd.	Ht.	No. of Thread Starts	Travel Distance per Turn	External Thread Size	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash	Temp. Range, ° F		Each
Black-Oxide Alloy Steel



	A	5/8"-5	1 45/64"	1"	1"	1	0.2"	15/16"-16	Rockwell C56	820	0.015"	-65 to 300	3405N456	000000


	A	1"-4	2 11/32"	1 1/2"	1 1/2"	1	0.25"	1 9/16"-18	Rockwell C56	1,620	0.015"	-65 to 300	3405N457	000000

Platform Ball Nuts—Right-Hand Threaded

Image of Product. Front orientation. Contains Annotated. Ball Screws and Nuts. Ball Screws and Nuts , Platform Nut, Ball Nuts.

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

	Lg., mm	Wd., mm	Ht., mm	Ctr. Ht., mm	No. of Thread Starts	Travel Distance per Turn, mm	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash, mm	Temp. Range, ° F		Each
Alloy Steel



	M14	35	34	30	13	1	4	Rockwell C58	1,200	0.1	5 to 175	6624K73	0000000


	M16	36	42	32.5	16	1	5	Rockwell C58	1,200	0.1	5 to 175	6624K27	000000
	M20	35	48	39	17	1	5	Rockwell C58	1,300	0.1	5 to 175	6624K29	000000
	M20	58	48	46	18	1	10	Rockwell C58	2,350	0.1	5 to 175	6624K31	000000
	M25	35	60	45	20	1	5	Rockwell C58	1,500	0.1	5 to 175	6624K33	000000
	M25	94	60	55	23	1	10	Rockwell C58	7,000	0.1	5 to 175	6624K35	000000

Flange Ball Nuts—Right-Hand Threaded


Style C	Style D	Style E

Black-Oxide Alloy Steel—Black-oxide alloy steel ball nuts have mild corrosion resistance.

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

							Flange
	Style	Thread Size	Lg.	Wd.	Ht.	Dia.	Dia.	Wd., mm	Ht., mm	Thk.	No. of Thread Starts	Travel Distance per Turn	Bolt Circle Dia.	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash	Temp. Range, ° F		Each
Alloy Steel



		C	M14	40 mm	—	—	31 mm	—	50	37	10 mm	1	4 mm	—	Rockwell C58	1,200	0.1 mm	5 to 175	6624K72	0000000


		C	M16	40 mm	—	—	34 mm	—	54	40	10 mm	1	5 mm	—	Rockwell C58	1,200	0.1 mm	5 to 175	6624K41	000000
		C	M20	40 mm	—	—	40 mm	—	60	46	10 mm	1	5 mm	—	Rockwell C58	1,300	0.1 mm	5 to 175	6624K43	000000
		C	M20	64 mm	—	—	52 mm	—	82	64	12 mm	1	10 mm	—	Rockwell C58	2,350	0.1 mm	5 to 175	6624K44	000000
		C	M25	40 mm	—	—	43 mm	—	67	50	10 mm	1	5 mm	—	Rockwell C58	1,500	0.1 mm	5 to 175	6624K46	000000
		C	M25	98 mm	—	—	60 mm	—	96	72	15 mm	1	10 mm	—	Rockwell C58	7,000	0.1 mm	5 to 175	6624K48	000000


		Black-Oxide Alloy Steel



				D	3/8"-8	1 1/64"	—	—	3/4"	1 19/32"	—	—	9/32"	1	0.125"	1 15/64"	Rockwell C56	170	0.015"	-65 to 300	3405N469	000000


				D	3/4"-5	2 29/32"	—	—	1 1/4"	2 19/32"	—	—	17/32"	1	0.2"	2 3/32"	Rockwell C56	1,900	0.015"	-65 to 300	3405N471	000000
				D	1 1/2"-2	5 19/32"	—	—	2 5/8"	4 15/16"	—	—	25/32"	1	0.5"	4 1/16"	Rockwell C56	12,900	0.015"	-65 to 300	3405N472	000000
				D	1 1/2"-4	3 1/32"	—	—	2 3/32"	4 23/64"	—	—	17/32"	1	0.25"	3 7/16"	Rockwell C56	4,250	0.015"	-65 to 300	3405N473	000000
				D	2 1/4"-2	6 23/32"	—	—	3 3/8"	5 3/8"	—	—	1 37/64"	1	0.5"	4 3/8"	Rockwell C58 to Rockwell C62	21,306	0.015"	-65 to 300	3405N77	00000000
				E	5/8"-5	1 47/64"	1"	1"	—	2 19/32"	—	—	17/32"	1	0.2"	2 3/32"	Rockwell C56	820	0.015"	-65 to 300	3405N482	000000
				E	1"-4	2 63/64"	1 1/2"	1 1/2"	—	3 15/64"	—	—	5/8"	1	0.25"	2 3/4"	Rockwell C56	1,620	0.015"	-65 to 300	3405N483	000000

Flange Ball Nuts—Left-Hand Threaded


Style E

Black-Oxide Alloy Steel—Black-oxide alloy steel ball nuts have mild corrosion resistance.

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

						Flange
	Style	Thread Size	Lg.	Wd.	Ht.	Dia.	Thk.	No. of Thread Starts	Travel Distance per Turn	Bolt Circle Dia.	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash	Temp. Range, ° F		Each
Black-Oxide Alloy Steel



		E	5/8"-5	1 47/64"	1"	1"	2 19/32"	17/32"	1	0.2"	2 3/32"	Rockwell C56	820	0.015"	-65 to 300	3405N401	0000000


		E	1"-4	2 5/8"	1 1/2"	1 1/2"	2 15/64"	5/8"	1	0.25"	2 3/4"	Rockwell C56	1,620	0.015"	-65 to 300	3405N402	000000
		E	1"-4	2 63/64"	1 1/2"	1 1/2"	3 15/64"	5/8"	1	0.25"	2 3/4"	Rockwell C56	1,620	0.015"	-65 to 300	3405N474	000000

Fast-Travel Ball Screws and Nuts


Ball Nuts, Externally Threaded Nut, Style A	Ball Nuts, Externally Threaded Nut, Style B	Ball Nuts, Externally Threaded Nut, Style C	Ball Nuts, Externally Threaded Nut, Style D

Ball Nuts Flange Nut Style E	Ball Nuts Flange Nut Style F	Ball Nuts Flange Nut Style G

Multiple thread channels (also known as thread starts) create faster linear travel than ball screws with a single thread start. Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. To ensure compatibility, select components that have the same thread size and number of thread starts. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.

Externally Threaded Ball Nuts—Right-Hand Threaded


Style A	Style B

Style C	Style D

Carbon Steel—Carbon steel ball screws and nuts are case hardened, so they resist wear better than standard carbon steel. However, they are less corrosion resistant than black-oxide alloy steel screws and nuts.

Black-Oxide Alloy Steel—Black-oxide alloy steel ball nuts have mild corrosion resistance.

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

Wipers—Secure a way wiper on the end of a ball nut to sweep chips and other contaminants out of the way as it moves across the ball screw.

	Ball Screw Nuts															Wipers
	Style	Thread Size	Lg.	Wd.	Ht.	Dia.	No. of Thread Starts	Travel Distance per Turn	External Thread Size	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash	Temp. Range, ° F		Each		Each
Carbon Steel



		A	M12	50 mm	—	—	30 mm	1	10 mm	M25	Rockwell C56	1,000	0.02 mm	32 to 150	4566N301	0000000	———	0


		B	M16	50 mm	—	—	39 mm	4	16 mm	M30	Rockwell C56	1,500	0.04 mm	32 to 150	4566N302	000000	———	0
		C	M32	90 mm	—	—	53 mm	4	32 mm	M50	Rockwell C56	3,700	0.03 mm	32 to 150	4566N303	000000	———	0


		Black-Oxide Alloy Steel



				C	1/2"-4	1 3/4"	—	—	1 1/16"	2	0.5"	15/16"-16	Rockwell C56	850	0.015"	-65 to 300	3405N464	00000	———	0


				C	3/4"-4	2 15/16"	—	—	1 5/16"	2	0.5"	1 1/4"-16	Rockwell C56	3,400	0.015"	-65 to 300	3405N465	00000	———	0
				C	1"-4	3 1/8"	—	—	1 11/16"	2	0.5"	1 9/16"-18	Rockwell C56	4,250	0.015"	-65 to 300	3405N466	000000	———	0
				C	1 1/2"-2	3 3/4"	2 1/4"	2 1/4"	2 5/8"	2	1"	2 1/4"-20	Rockwell C56	8,000	0.015"	-65 to 300	3405N467	000000	2528N42	0000000
				D	1"-4	3"	1 1/2"	1 1/2"	—	4	1"	1 9/16"-18	Rockwell C56	2,300	0.015"	-65 to 300	3405N468	000000	———	0

Flange Ball Nuts—Right-Hand Threaded


Style E	Style F	Style G

Black-Oxide Alloy Steel—Black-oxide alloy steel ball nuts have mild corrosion resistance.

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

Wipers—Secure a way wiper on the end of a ball nut to sweep chips and other contaminants out of the way as it moves across the ball screw.

	Ball Screw Nuts																	Wipers
							Flange
	Style	Thread Size	Lg.	Wd.	Ht.	Dia.	Dia.	Thk.	No. of Thread Starts	Travel Distance per Turn	Bolt Circle Dia.	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash	Temp. Range, ° F		Each		Each
Carbon Steel



		E	M12	43 mm	—	—	23 mm	40 mm	10 mm	2	10 mm	32 mm	Rockwell C56	1,100	0.02 mm	32 to 150	4566N401	0000000	———	0


		E	M15	56 mm	—	—	33 mm	57 mm	10 mm	4	20 mm	45 mm	Rockwell C56	2,250	0.04 mm	32 to 150	4566N403	000000	———	0
		E	M15	61 mm	—	—	27 mm	48 mm	10 mm	4	16 mm	38 mm	Rockwell C56	2,200	0.04 mm	32 to 150	4566N402	000000	———	0
		E	M20	77 mm	—	—	35 mm	58 mm	10 mm	4	20 mm	47 mm	Rockwell C56	2,750	0.04 mm	32 to 150	4566N404	000000	———	0
		E	M32	88 mm	—	—	53 mm	86 mm	14 mm	4	32 mm	71 mm	Rockwell C56	5,800	0.05 mm	32 to 150	4566N406	000000	———	0
		E	M32	108 mm	—	—	49 mm	80 mm	16 mm	2	20 mm	65 mm	Rockwell C56	4,900	0.04 mm	32 to 150	4566N405	000000	———	0
		E	M40	101 mm	—	—	66 mm	106 mm	18 mm	4	40 mm	85 mm	Rockwell C56	9,550	0.07 mm	32 to 150	4566N407	000000	———	0


		Black-Oxide Alloy Steel



				F	1/2"-4	1 3/4"	—	—	1 1/16"	2 39/64"	17/32"	2	0.5"	2 3/32"	Rockwell C56	850	0.015"	-65 to 300	3405N405	000000	———	0


				F	3/4"-4	2 15/16"	—	—	1 5/16"	2 39/64"	17/32"	2	0.5"	2 3/32"	Rockwell C56	3,400	0.015"	-65 to 300	3405N403	000000	———	0
				F	1"-4	3 1/8"	—	—	1 11/16"	3 15/64"	5/8"	2	0.5"	2 3/4"	Rockwell C56	4,250	0.015"	-65 to 300	3405N404	000000	———	0
				G	1"-4	3"	1 1/2"	1 1/2"	—	3 15/64"	5/8"	4	1"	2 3/4"	Rockwell C56	2,300	0.015"	-65 to 300	3405N406	000000	———	0
				G	1 1/2"-2	3 3/4"	2 1/4"	2 1/4"	—	4 15/16"	1 1/64"	2	1"	4 1/8"	Rockwell C56	8,000	0.015"	-65 to 300	3405N407	000000	2528N42	0000000

Corrosion-Resistant Ball Screws and Nuts


	Ball Nuts, Externally Threaded Nut, Style A	Ball Nuts, Externally Threaded Nut, Style B	Ball Nuts Flange Nut Style C	Ball Nuts Flange Nut Style D

Suitable for use in harsh environments, these ball screws and nuts are made of stainless steel. Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. Also known as single-start ball screws and nuts, they have a single thread that runs the length of the screw. They operate with more torque than fast-travel ball screws and nuts. To ensure compatibility, select components that have the same thread size. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.

Externally Threaded Ball Nuts—Right-Hand Threaded


Style A	Style B

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

	Thread Size	Lg.	Wd.	Ht.	Dia.	No. of Thread Starts	Travel Distance per Turn	External Thread Size	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash	Temp. Range, ° F		Each
17-4 PH Stainless Steel



	A	3/8"-8	1"	—	—	3/4"	1	0.125"	0.664"-32	Rockwell C38	25	0.007"	-65 to 300	6641K9	0000000


	B	5/8"-5	1 23/32"	1"	1"	—	1	0.2"	15/16"-16	Rockwell C38	170	0.007"	-65 to 300	6641K12	000000

Flange Ball Nuts—Right-Hand Threaded


Style C	Style D

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

							Flange
	Style	Thread Size	Lg.	Wd.	Ht.	Dia.	Dia.	Thk.	No. of Thread Starts	Travel Distance per Turn	Bolt Circle Dia.	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash	Temp. Range, ° F		Each
17-4 PH Stainless Steel



		C	3/8"-8	1"	—	—	3/4"	1 19/32"	17/64"	1	0.125"	1 15/64"	Rockwell C38	25	0.007"	-65 to 300	6641K21	0000000


		D	5/8"-5	1 47/64"	1"	1"	—	2 19/32"	17/32"	1	0.2"	2 3/32"	Rockwell C38	170	0.007"	-65 to 300	6641K23	000000

Self-Stopping Ball Screws and Nuts

Stop Pin Shown Installed

Keep your ball screw spinning without the ball nut damaging your system—a clutch-like collar inside the ball nut prevents it from travelling past the stop pins. Install the included stop pins anywhere along the length of the ball screw by drilling a hole in the valley of the threads (also known as the root) and pressing in the stop pin. When the collar meets the stop pin, the ball nut disengages from the threads and begins to idle. To start the ball nut travelling again, spin the ball screw in the opposite direction. All components are black-oxide steel and have mild corrosion resistance. To ensure compatibility, select components that have the same thread size. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.

Externally Threaded Ball Nuts—Right-Hand Threaded

Image of Product. Front orientation. Contains Annotated. Ball Screws and Nuts. Self-Stopping Ball Screws and Nuts, Ball Nuts, Externally Threaded Nut.

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

	Lg.	Dia.	No. of Thread Starts	Travel Distance per Turn	External Thread Size	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash	Temp. Range, ° F		Each
Black-Oxide Alloy Steel



	5/8"-6	1 7/8"	1"	2	0.188"	15/16"-16	Rockwell C56	300	0.006"	-65 to 300	2385N14	0000000


	1"-4	2 23/32"	1 5/8"	2	0.274"	1.563"-18	Rockwell C56	900	0.008"	-65 to 300	2385N19	000000

Flange Ball Nuts—Right-Hand Threaded

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

				Flange
	Thread Size	Lg.	Dia.	Dia.	Thk.	No. of Thread Starts	Travel Distance per Turn	Bolt Circle Dia.	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash	Temp. Range, ° F		Each
Black-Oxide Alloy Steel



		5/8"-6	1 7/8"	1"	2"	13/32"	2	0.188"	1 5/8"	Rockwell C56	300	0.006"	-65 to 300	2385N15	0000000


		1"-4	2 23/32"	1 5/8"	3 15/64"	5/8"	2	0.274"	2 3/4"	Rockwell C56	900	0.008"	-65 to 300	2385N21	000000

Fast-Travel Corrosion-Resistant Ball Screws and Nuts

Multiple thread channels (also known as thread starts) create faster linear travel than ball screws with a single thread start. Suitable for use in harsh environments, these ball screws and nuts are made of stainless steel. Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. To ensure compatibility, select components that have the same thread size. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.

Externally Threaded Ball Nuts—Right-Hand Threaded

Image of Product. Front orientation. Contains Annotated. Ball Screws and Nuts. Fast-Travel Corrosion-Resistant Ball Screws and Nuts, Ball Nuts, Externally Threaded Nut.

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

	Lg.	Dia.	No. of Thread Starts	Travel Distance per Turn	External Thread Size	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash	Temp. Range, ° F		Each
17-4 PH Stainless Steel



	1/2"-4	1 3/4"	1 1/16"	2	0.5"	15/16"-16	Rockwell C38	140	0.007"	-65 to 300	6641K32	0000000


	3/4"-4	2 15/16"	1 5/16"	2	0.5"	1 1/4"-16	Rockwell C38	600	0.007"	-65 to 300	6641K17	000000

Flange Ball Nuts—Right-Hand Threaded

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

				Flange
	Thread Size	Lg.	Dia.	Dia.	Thk.	No. of Thread Starts	Travel Distance per Turn	Bolt Circle Dia.	Hardness	Dynamic Thrust Load Cap., lb.	Max. Backlash	Temp. Range, ° F		Each
17-4 PH Stainless Steel



		1/2"-4	1 29/32"	1 1/16"	2 19/32"	17/32"	2	0.5"	2 3/32"	Rockwell C38	140	0.007"	-65 to 300	6641K42	0000000


		3/4"-4	2 15/16"	1 5/16"	2 19/32"	17/32"	2	0.5"	2 3/32"	Rockwell C38	600	0.007"	-65 to 300	6641K18	000000