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    64 Products

    Ultra-Precision Lead Screws and Nuts

    Image of ProductInUse. Front orientation. Contains Inset. Precision Lead Screws and Nuts. Ultra-Precision Lead Screws and Nuts.
    Image of Product. Style A. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style A.
    Image of Product. Style B. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style B.
    Image of Product. Style C. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style C.

    Style A

    Style B

    Style C

    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.
    Flange Nuts—Right-Hand Thread
    Image of Product. Style A. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style A.
    Image of Product. Style B. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style B.
    Image of Product. Style C. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style C.

    Style A

    Style B

    Style C

    Image of Attribute. Front orientation. Contains Annotated. Ultra-Precision Lead Screws and Nuts, Nuts, Flange Nut, Style B.

    Style B

    Image of Attribute. Front orientation. Contains Annotated. Ultra-Precision Lead Screws and Nuts, Nuts, Flange Nut, Style C.

    Style C

    Acetal—Acetal nuts have good wear and corrosion resistance.
    Wear-Compensating Spring—Flange nuts with wear-compensating internal O-ring or wear-compensating spring maintain a tight fit even when their threads begin to wear. They resist backlash to maintain accuracy over time, which is important in positioning applications such as 3D printing and robotics.
    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.
    Flange
    Style
    Thread
    Size
    Lg.
    Dia.
    Dia.
    Wd.
    Ht.
    Thk.
    Thread Type
    Speed
    Ratio
    Bolt Circle
    Dia.
    No. of Thread
    Starts
    Travel Distance
    per Turn
    Mounting Hole
    Ctr.-to-Ctr.
    Hardness
    Tensile Strength,
    psi
    Dynamic Thrust
    Load Cap., lb.
    No. of Mounting
    Holes
    Each
    Acetal
    A1/8"-20.8
    		1/2"0.4"—3/4"13/32"1/8"Rounded Acme
    		1:1—10.048"39/64"Not Rated9,00025200000000000000
    A1/8"-41.7
    		1/2"0.4"—3/4"13/32"1/8"Rounded Acme
    		1:1—10.024"39/64"Not Rated9,0002520000000000000
    A9/64"-20.8
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		1:1—10.048"39/64"Not RatedNot Rated252000000000000
    A9/64"-41.7
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		1:1—10.024"39/64"Not RatedNot Rated252000000000000
    A7/32"-20.8
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		1:1—10.048"39/64"Not RatedNot Rated252000000000000
    B1/4"-20
    		1"0.5"1"——3/16"Rounded Acme
    		1:13/4"10.05"—Not Rated9,7005030000000000000
    B1/4"-40
    		1"0.5"1"——3/16"Rounded Acme
    		1:13/4"10.025"—Not Rated9,0005030000000000000
    B3/8"-10
    		1"0.625"1 7/64"——3/16"Rounded Acme
    		1:17/8"10.1"—Not Rated9,700753000000000000
    B3/8"-20
    		1"0.625"1 7/64"——3/16"Rounded Acme
    		1:17/8"10.05"—Not Rated9,7007530000000000000
    B3/8"-40
    		1"0.625"1 7/64"——3/16"Rounded Acme
    		1:17/8"10.025"—Not Rated9,7007530000000000000
    B1/2"-8
    		1 1/2"0.75"1 1/2"——3/16"Rounded Acme
    		1:11 1/8"10.125"—Not Rated9,70015030000000000000
    B1/2"-10
    		1 1/2"0.75"1 1/2"——3/16"Rounded Acme
    		1:11 1/8"10.1"—Not Rated9,7001503000000000000
    B1/2"-20
    		1 1/2"0.75"1 1/2"——3/16"Rounded Acme
    		1:11 1/8"10.05"—Not Rated9,70015030000000000000
    B5/8"-10
    		1 1/2"0.875"1 1/2"——3/16"Rounded Acme
    		1:11 3/16"10.1"—Not Rated9,70022030000000000000
    B3/4"-10
    		2"1.125"1 51/64"——1/4"Rounded Acme
    		1:11 7/16"10.1"—Not Rated9,70035030000000000000
     
    Acetal with Wear-Compensating Internal O-Ring
    A9/64"-20.8
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		1:1—10.048"39/64"Not RatedNot Rated52000000000000
    A9/64"-41.7
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		1:1—10.024"39/64"Not RatedNot Rated52000000000000
    A7/32"-20.8
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		1:1—10.048"39/64"Not RatedNot Rated52000000000000
     
    Acetal with Wear-Compensating Spring
    B3/4"-10
    		2 45/64"1.563"2 13/32"——5/16"Rounded Acme
    		1:12"10.1"—Not Rated9,700150300000000000000
    C1/4"-20
    		1"0.5"1"——3/16"Rounded Acme
    		1:13/4"10.05"—Not Rated9,700530000000000000
    C3/8"-10
    		1 29/32"0.703"1 1/2"——3/16"Rounded Acme
    		1:11 1/8"10.1"—Not Rated9,700103000000000000
    C3/8"-20
    		1 29/32"0.703"1 1/2"——3/16"Rounded Acme
    		1:11 1/8"10.05"—Not Rated9,7001030000000000000
    C3/8"-40
    		1 29/32"0.703"1 1/2"——3/16"Rounded Acme
    		1:11 1/8"10.025"—Not Rated9,7001030000000000000
    C1/2"-8
    		2"0.891"1 39/64"——17/64"Rounded Acme
    		1:11 1/4"10.125"—Not Rated9,7002530000000000000
    C1/2"-10
    		2"0.891"1 39/64"——17/64"Rounded Acme
    		1:11 1/4"10.1"—Not Rated9,700253000000000000
    C1/2"-20
    		2"0.891"1 39/64"——17/64"Rounded Acme
    		1:11 1/4"10.05"—Not Rated9,7002530000000000000
    C5/8"-10
    		2"1.063"1 51/64"——17/64"Rounded Acme
    		1:11 3/8"10.1"—Not Rated9,7003530000000000000
     

    Fast-Travel Ultra-Precision Lead Screws and Nuts

    Image of ProductInUse. Front orientation. Contains Inset. Precision Lead Screws and Nuts. Fast-Travel Ultra-Precision Lead Screws and Nuts.
    Image of Product. Style A. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Fast-Travel Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style A.
    Image of Product. Style B. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Fast-Travel Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style B.
    Image of Product. Style C. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Fast-Travel Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style C.

    Style A

    Style B

    Style C

    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.
    Flange Nuts—Right-Hand Thread
    Image of Product. Style A. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Fast-Travel Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style A.
    Image of Product. Style B. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Fast-Travel Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style B.
    Image of Product. Style C. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Fast-Travel Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style C.

    Style A

    Style B

    Style C

    Image of Attribute. Front orientation. Contains Annotated. Fast-Travel Ultra-Precision Lead Screws and Nuts, Nuts, Flange Nut, Style B.

    Style B

    Image of Attribute. Front orientation. Contains Annotated. Fast-Travel Ultra-Precision Lead Screws and Nuts, Nuts, Flange Nut, Style C.

    Style C

    Acetal—Acetal nuts have good wear and corrosion resistance.
    Wear-Compensating Internal O-Ring and Wear-Compensating Spring—Flange nuts with wear-compensating internal O-ring or wear-compensating spring maintain a tight fit even when their threads begin to wear. They resist backlash to maintain accuracy over time, which is important in positioning applications such as 3D printing and robotics.
    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.
    Flange
    Style
    Thread
    Size
    Lg.
    Dia.
    Dia.
    Wd.
    Ht.
    Thk.
    Thread Type
    Speed
    Ratio
    Bolt Circle
    Dia.
    No. of Thread
    Starts
    Travel Distance
    per Turn
    Mounting Hole
    Ctr.-to-Ctr.
    Hardness
    Tensile Strength,
    psi
    Dynamic Thrust
    Load Cap., lb.
    No. of Mounting
    Holes
    Each
    Acetal
    A9/64"-20.8
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		2:1—20.096"39/64"Not RatedNot Rated2520000000000000
    A5/32"-21.3
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		2:1—20.094"39/64"Not RatedNot Rated252000000000000
    A3/16"-42.7
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		16:1—160.375"39/64"Not RatedNot Rated252000000000000
    A7/32"-20.8
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		4:1—40.192"39/64"Not RatedNot Rated252000000000000
    B1/4"-8
    		1"0.5"1"——3/16"Rounded Acme
    		8:13/4"81"—Not Rated9,700503000000000000
    B1/4"-16
    		1"0.5"1"——3/16"Rounded Acme
    		4:13/4"40.25"—Not Rated9,700503000000000000
    B1/4"-20
    		1"0.5"1"——3/16"Rounded Acme
    		2:13/4"20.1"—Not Rated9,7005030000000000000
    B3/8"-5
    		1"0.625"1 7/64"——3/16"Rounded Acme
    		5:17/8"51"—Not Rated9,700753000000000000
    B3/8"-8
    		1"0.625"1 7/64"——3/16"Rounded Acme
    		4:17/8"40.5"—Not Rated9,700753000000000000
    B3/8"-10
    		1"0.625"1 7/64"——3/16"Rounded Acme
    		2:17/8"20.2"—Not Rated9,700753000000000000
    B3/8"-12
    		1"0.625"1 7/64"——3/16"Rounded Acme
    		3:17/8"30.25"—Not Rated9,7007530000000000000
    B1/2"-8
    		1 1/2"0.75"1 1/2"——3/16"Rounded Acme
    		2:11 1/8"20.25"—Not Rated9,70015030000000000000
    B1/2"-8
    		1 1/2"0.75"1 1/2"——3/16"Rounded Acme
    		4:11 1/8"40.5"—Not Rated9,7001503000000000000
    B1/2"-8
    		1 1/2"0.75"1 1/2"——3/16"Rounded Acme
    		8:11 1/8"81"—Not Rated9,7001503000000000000
    B1/2"-10
    		1 1/2"0.75"1 1/2"——3/16"Rounded Acme
    		2:11 1/8"20.2"—Not Rated9,7001503000000000000
    B5/8"-6
    		1 1/2"0.875"1 1/2"——3/16"Rounded Acme
    		12:11 3/16"122"—Not Rated9,70022030000000000000
    B5/8"-8
    		1 1/2"0.875"1 1/2"——3/16"Rounded Acme
    		4:11 3/16"40.5"—Not Rated9,70022030000000000000
    B3/4"-8
    		2"1.125"1 3/4"——1/4"Rounded Acme
    		8:11 7/16"81"—Not Rated9,00035030000000000000
    B3/4"-8
    		2"1.125"1 51/64"——1/4"Rounded Acme
    		2:11 7/16"20.25"—Not Rated9,7003503000000000000
     
    Acetal with Wear-Compensating Internal O-Ring
    A9/64"-20.8
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		2:1—20.096"39/64"Not RatedNot Rated52000000000000
    A5/32"-21.3
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		2:1—20.094"39/64"Not RatedNot Rated52000000000000
    A3/16"-42.7
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		16:1—160.375"39/64"Not RatedNot Rated52000000000000
    A7/32"-20.8
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		4:1—40.192"39/64"Not RatedNot Rated52000000000000
     
    Acetal with Wear-Compensating Spring
    B3/4"-8
    		2 45/64"1.563"2 13/32"——5/16"Rounded Acme
    		2:12"20.25"—Not Rated9,70015030000000000000
    C1/4"-8
    		1"0.5"1"——3/16"Rounded Acme
    		8:13/4"81"—Not Rated9,70053000000000000
    C1/4"-16
    		1"0.5"1"——3/16"Rounded Acme
    		4:13/4"40.25"—Not Rated9,70053000000000000
    C1/4"-20
    		1"0.5"1"——3/16"Rounded Acme
    		2:13/4"20.1"—Not Rated9,700530000000000000
    C3/8"-5
    		1 29/32"0.703"1 1/2"——3/16"Rounded Acme
    		5:11 1/8"51"—Not Rated9,700103000000000000
    C3/8"-8
    		1 29/32"0.703"1 1/2"——3/16"Rounded Acme
    		4:11 1/8"40.5"—Not Rated9,700103000000000000
    C3/8"-10
    		1 29/32"0.703"1 1/2"——3/16"Rounded Acme
    		2:11 1/8"20.2"—Not Rated9,700103000000000000
    C3/8"-12
    		1 29/32"0.703"1 1/2"——3/16"Rounded Acme
    		3:11 1/8"30.25"—Not Rated9,7001030000000000000
    C1/2"-8
    		2"0.891"1 39/64"——17/64"Rounded Acme
    		2:11 1/4"20.25"—Not Rated9,7002530000000000000
    C1/2"-8
    		2"0.891"1 39/64"——17/64"Rounded Acme
    		4:11 1/4"40.5"—Not Rated9,700253000000000000
    C1/2"-8
    		2"0.891"1 39/64"——17/64"Rounded Acme
    		8:11 1/4"81"—Not Rated9,700253000000000000
    C1/2"-10
    		2"0.891"1 39/64"——17/64"Rounded Acme
    		2:11 1/4"20.2"—Not Rated9,700253000000000000
    C5/8"-6
    		2"1.063"1 51/64"——17/64"Rounded Acme
    		12:11 3/8"122"—Not Rated9,7003530000000000000
    C5/8"-8
    		2"1.063"1 51/64"——17/64"Rounded Acme
    		4:11 3/8"40.5"—Not Rated9,7003530000000000000
     
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