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    102 Products

    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.
    Image of Product. Style A. Front orientation. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts, Round Nuts—Right-Hand Thread, Style A.
    Image of Product. Style B. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts, Externally Threaded Nuts—Right-Hand Thread, Style B.
    Image of Product. Style D. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style D.
    Image of Product. Style E. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style E.
    Image of Product. Style F. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style F.

    Style A

    Style B

    Style D

    Style E

    Style F

    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.
    Round Nuts—Right-Hand Thread
    Image of Product. Style A. Front orientation. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts, Round Nuts—Right-Hand Thread, Style A.

    Style A

    Acetal—Acetal nuts have good wear and 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.
    Style
    Thread Size
    Lg.
    Dia.
    Thread Type
    Speed
    Ratio
    No. of Thread
    Starts
    Travel Distance
    per Turn, mm
    Hardness
    Tensile Strength,
    psi
    Dynamic Thrust
    Load Cap.
    Temp.,
    ° F
    Each
    Acetal
    AM8 × 2.5 mm15/32"0.709"Metric Rounded Trapezoidal
    		4:1410Durometer 74D10,000Not Rated-40 to 1852391N17000000
    AM10 × 3 mm25/32"0.866"Metric Rounded Trapezoidal
    		4:1412Durometer 74D10,000Not Rated-40 to 1852391N1800000
    AM12 × 2.5 mm15/16"1.024"Metric Rounded Trapezoidal
    		2:125Durometer 74D10,000Not Rated-40 to 1852391N1900000
    AM16 × 5 mm1 17/64"1.417"Metric Rounded Trapezoidal
    		7:1735Durometer 74D10,000Not Rated-40 to 1852391N2100000
    AM20 × 5 mm1 37/64"1.772"Metric Rounded Trapezoidal
    		4:1420Durometer 74D10,000Not Rated-40 to 1852391N2200000
    AM20 × 7.5 mm1 37/64"1.772"Metric Rounded Trapezoidal
    		8:1860Durometer 74D10,000Not Rated-40 to 1852391N2300000
     
    Externally Threaded Nuts—Right-Hand Thread
    Image of Product. Style B. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts, Externally Threaded Nuts—Right-Hand Thread, Style B.

    Style B

    Acetal—Acetal nuts have good wear and 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.
    External
    Thread
    Style
    Thread Size
    Lg.
    Dia.
    Hex
    Wd.
    Thread Type
    Speed
    Ratio
    No. of Thread
    Starts
    Travel Distance
    per Turn, mm
    Size
    Lg.
    Hardness
    Tensile Strength,
    psi
    Dynamic Thrust
    Load Cap., lb.
    Temp.,
    ° F
    Each
    Acetal
    BM2 × 0.5 mm11/16"0.297"7/16"Metric Rounded Trapezoidal
    		2:1213/8"-24
    		3/16"Not Rated8,00010-40 to 18597783A190000000
    BM4 × 1.25 mm11/16"0.297"7/16"Metric Rounded Trapezoidal
    		8:18103/8"-24
    		3/16"Not Rated8,00025-40 to 18597783A21000000
    BM5 × 1.25 mm11/16"0.297"7/16"Metric Rounded Trapezoidal
    		4:1453/8"-24
    		3/16"Not Rated8,00025-40 to 18597783A22000000
    BM8 × 2 mm1"0.548"11/16"Metric Rounded Trapezoidal
    		2:1245/8"-18
    		1/4"Not Rated8,00075-40 to 18597783A23000000
     
    Flange Nuts—Right-Hand Thread
    Image of Product. Style D. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style D.
    Image of Product. Style E. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style E.
    Image of Product. Style F. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Fast-Travel Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style F.

    Style D

    Style E

    Style F

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

    Style D

    Style E

    Style F

    Acetal—Acetal nuts have good wear and 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.
    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, mm
    Hardness
    Tensile Strength,
    psi
    Dynamic Thrust
    Load Cap., lb.
    No. of Mounting
    Holes
    Temp.,
    ° F
    Each
    Acetal
    DM2 × 0.5 mm1/2"0.297"—3/4"13/32"1/8"Metric Rounded Trapezoidal
    		2:139/64"21Not Rated8,000102-40 to 18597783A240000000
    DM4 × 1.25 mm1/2"0.297"—3/4"13/32"1/8"Metric Rounded Trapezoidal
    		8:139/64"810Not Rated8,000252-40 to 18597783A25000000
    DM5 × 1.25 mm1/2"0.297"—3/4"13/32"1/8"Metric Rounded Trapezoidal
    		4:139/64"45Not Rated8,000252-40 to 18597783A26000000
    EM8 × 2 mm3/4"0.548"1 1/8"——3/16"Metric Rounded Trapezoidal
    		2:17/8"24Not Rated8,000753-40 to 18597783A27000000
    FM8 × 2.5 mm25/32"0.787"1 27/64"——5/16"Metric Rounded Trapezoidal
    		4:11 7/64"410Durometer 74D10,000Not Rated6-40 to 1852391N1100000
    FM10 × 3 mm63/64"0.984"1 21/32"——25/64"Metric Rounded Trapezoidal
    		4:11 11/32"412Durometer 74D10,000Not Rated6-40 to 1852391N1200000
    FM12 × 2.5 mm1 3/8"1.102"1 57/64"——15/32"Metric Rounded Trapezoidal
    		2:11 1/2"25Durometer 74D10,000Not Rated6-40 to 1852391N1300000
    FM16 × 5 mm1 3/8"1.102"1 57/64"——15/32"Metric Rounded Trapezoidal
    		7:11 1/2"735Durometer 74D10,000Not Rated6-40 to 1852391N1400000
    FM20 × 5 mm1 47/64"1.26"2 11/64"——15/32"Metric Rounded Trapezoidal
    		4:11 49/64"420Durometer 74D10,000Not Rated6-40 to 1852391N15000000
    FM20 × 7.5 mm1 47/64"1.26"2 11/64"——15/32"Metric Rounded Trapezoidal
    		8:11 49/64"860Durometer 74D10,000Not Rated6-40 to 1852391N16000000
     

    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 Rated9,0002526350K682000000
    A1/8"-41.7
    		1/2"0.4"—3/4"13/32"1/8"Rounded Acme
    		1:1—10.024"39/64"Not Rated9,0002526350K68100000
    A9/64"-20.8
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		1:1—10.048"39/64"Not RatedNot Rated2526642K2200000
    A9/64"-41.7
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		1:1—10.024"39/64"Not RatedNot Rated2526642K2100000
    A7/32"-20.8
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		1:1—10.048"39/64"Not RatedNot Rated2526642K2400000
    B1/4"-20
    		1"0.5"1"——3/16"Rounded Acme
    		1:13/4"10.05"—Not Rated9,7005036350K17100000
    B1/4"-40
    		1"0.5"1"——3/16"Rounded Acme
    		1:13/4"10.025"—Not Rated9,0005036350K68300000
    B3/8"-10
    		1"0.625"1 7/64"——3/16"Rounded Acme
    		1:17/8"10.1"—Not Rated9,7007536350K3300000
    B3/8"-20
    		1"0.625"1 7/64"——3/16"Rounded Acme
    		1:17/8"10.05"—Not Rated9,7007536350K17200000
    B3/8"-40
    		1"0.625"1 7/64"——3/16"Rounded Acme
    		1:17/8"10.025"—Not Rated9,7007536350K17500000
    B1/2"-8
    		1 1/2"0.75"1 1/2"——3/16"Rounded Acme
    		1:11 1/8"10.125"—Not Rated9,70015036350K16300000
    B1/2"-10
    		1 1/2"0.75"1 1/2"——3/16"Rounded Acme
    		1:11 1/8"10.1"—Not Rated9,70015036350K4100000
    B1/2"-20
    		1 1/2"0.75"1 1/2"——3/16"Rounded Acme
    		1:11 1/8"10.05"—Not Rated9,70015036350K17300000
    B5/8"-10
    		1 1/2"0.875"1 1/2"——3/16"Rounded Acme
    		1:11 3/16"10.1"—Not Rated9,70022036350K16700000
    B3/4"-10
    		2"1.125"1 51/64"——1/4"Rounded Acme
    		1:11 7/16"10.1"—Not Rated9,70035036350K16800000
     
    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 Rated526642K3200000
    A9/64"-41.7
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		1:1—10.024"39/64"Not RatedNot Rated526642K3100000
    A7/32"-20.8
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		1:1—10.048"39/64"Not RatedNot Rated526642K3400000
     
    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 Rated9,70015036350K206000000
    C1/4"-20
    		1"0.5"1"——3/16"Rounded Acme
    		1:13/4"10.05"—Not Rated9,700536350K20800000
    C3/8"-10
    		1 29/32"0.703"1 1/2"——3/16"Rounded Acme
    		1:11 1/8"10.1"—Not Rated9,7001036350K5300000
    C3/8"-20
    		1 29/32"0.703"1 1/2"——3/16"Rounded Acme
    		1:11 1/8"10.05"—Not Rated9,7001036350K20900000
    C3/8"-40
    		1 29/32"0.703"1 1/2"——3/16"Rounded Acme
    		1:11 1/8"10.025"—Not Rated9,7001036350K21300000
    C1/2"-8
    		2"0.891"1 39/64"——17/64"Rounded Acme
    		1:11 1/4"10.125"—Not Rated9,7002536350K20100000
    C1/2"-10
    		2"0.891"1 39/64"——17/64"Rounded Acme
    		1:11 1/4"10.1"—Not Rated9,7002536350K6100000
    C1/2"-20
    		2"0.891"1 39/64"——17/64"Rounded Acme
    		1:11 1/4"10.05"—Not Rated9,7002536350K21100000
    C5/8"-10
    		2"1.063"1 51/64"——17/64"Rounded Acme
    		1:11 3/8"10.1"—Not Rated9,7003536350K20500000
     

    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 Rated2526642K23000000
    A5/32"-21.3
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		2:1—20.094"39/64"Not RatedNot Rated2526642K2500000
    A3/16"-42.7
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		16:1—160.375"39/64"Not RatedNot Rated2526642K5700000
    A7/32"-20.8
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		4:1—40.192"39/64"Not RatedNot Rated2526642K2600000
    B1/4"-8
    		1"0.5"1"——3/16"Rounded Acme
    		8:13/4"81"—Not Rated9,7005036350K3200000
    B1/4"-16
    		1"0.5"1"——3/16"Rounded Acme
    		4:13/4"40.25"—Not Rated9,7005036350K3100000
    B1/4"-20
    		1"0.5"1"——3/16"Rounded Acme
    		2:13/4"20.1"—Not Rated9,7005036350K16600000
    B3/8"-5
    		1"0.625"1 7/64"——3/16"Rounded Acme
    		5:17/8"51"—Not Rated9,7007536350K3600000
    B3/8"-8
    		1"0.625"1 7/64"——3/16"Rounded Acme
    		4:17/8"40.5"—Not Rated9,7007536350K3500000
    B3/8"-10
    		1"0.625"1 7/64"——3/16"Rounded Acme
    		2:17/8"20.2"—Not Rated9,7007536350K3400000
    B3/8"-12
    		1"0.625"1 7/64"——3/16"Rounded Acme
    		3:17/8"30.25"—Not Rated9,7007536350K15100000
    B1/2"-8
    		1 1/2"0.75"1 1/2"——3/16"Rounded Acme
    		2:11 1/8"20.25"—Not Rated9,70015036350K15300000
    B1/2"-8
    		1 1/2"0.75"1 1/2"——3/16"Rounded Acme
    		4:11 1/8"40.5"—Not Rated9,70015036350K4300000
    B1/2"-8
    		1 1/2"0.75"1 1/2"——3/16"Rounded Acme
    		8:11 1/8"81"—Not Rated9,70015036350K4400000
    B1/2"-10
    		1 1/2"0.75"1 1/2"——3/16"Rounded Acme
    		2:11 1/8"20.2"—Not Rated9,70015036350K4200000
    B5/8"-6
    		1 1/2"0.875"1 1/2"——3/16"Rounded Acme
    		12:11 3/16"122"—Not Rated9,70022036350K13900000
    B5/8"-8
    		1 1/2"0.875"1 1/2"——3/16"Rounded Acme
    		4:11 3/16"40.5"—Not Rated9,70022036350K14500000
    B3/4"-8
    		2"1.125"1 3/4"——1/4"Rounded Acme
    		8:11 7/16"81"—Not Rated9,00035036350K68400000
    B3/4"-8
    		2"1.125"1 51/64"——1/4"Rounded Acme
    		2:11 7/16"20.25"—Not Rated9,70035036350K4500000
     
    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 Rated526642K3300000
    A5/32"-21.3
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		2:1—20.094"39/64"Not RatedNot Rated526642K3500000
    A3/16"-42.7
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		16:1—160.375"39/64"Not RatedNot Rated526642K6700000
    A7/32"-20.8
    		1/2"0.406"—3/4"13/32"1/8"Rounded Acme
    		4:1—40.192"39/64"Not RatedNot Rated526642K3600000
     
    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 Rated9,70015036350K65000000
    C1/4"-8
    		1"0.5"1"——3/16"Rounded Acme
    		8:13/4"81"—Not Rated9,700536350K5200000
    C1/4"-16
    		1"0.5"1"——3/16"Rounded Acme
    		4:13/4"40.25"—Not Rated9,700536350K5100000
    C1/4"-20
    		1"0.5"1"——3/16"Rounded Acme
    		2:13/4"20.1"—Not Rated9,700536350K20400000
    C3/8"-5
    		1 29/32"0.703"1 1/2"——3/16"Rounded Acme
    		5:11 1/8"51"—Not Rated9,7001036350K5600000
    C3/8"-8
    		1 29/32"0.703"1 1/2"——3/16"Rounded Acme
    		4:11 1/8"40.5"—Not Rated9,7001036350K5500000
    C3/8"-10
    		1 29/32"0.703"1 1/2"——3/16"Rounded Acme
    		2:11 1/8"20.2"—Not Rated9,7001036350K5400000
    C3/8"-12
    		1 29/32"0.703"1 1/2"——3/16"Rounded Acme
    		3:11 1/8"30.25"—Not Rated9,7001036350K18800000
    C1/2"-8
    		2"0.891"1 39/64"——17/64"Rounded Acme
    		2:11 1/4"20.25"—Not Rated9,7002536350K19100000
    C1/2"-8
    		2"0.891"1 39/64"——17/64"Rounded Acme
    		4:11 1/4"40.5"—Not Rated9,7002536350K6300000
    C1/2"-8
    		2"0.891"1 39/64"——17/64"Rounded Acme
    		8:11 1/4"81"—Not Rated9,7002536350K6400000
    C1/2"-10
    		2"0.891"1 39/64"——17/64"Rounded Acme
    		2:11 1/4"20.2"—Not Rated9,7002536350K6200000
    C5/8"-6
    		2"1.063"1 51/64"——17/64"Rounded Acme
    		12:11 3/8"122"—Not Rated9,7003536350K17700000
    C5/8"-8
    		2"1.063"1 51/64"——17/64"Rounded Acme
    		4:11 3/8"40.5"—Not Rated9,7003536350K18300000
     

    Metric Ultra-Precision Lead Screws and Nuts

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

    Style A

    Style C

    Style D

    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.
    Externally Threaded Nuts—Right-Hand Thread
    Image of Product. Style A. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Ultra-Precision Lead Screws and Nuts, Externally Threaded Nuts—Right-Hand Thread, Style A.

    Style A

    Acetal—Acetal nuts have good wear and 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.
    External
    Thread
    Style
    Thread
    Size
    Lg.
    Dia.
    Hex
    Wd.
    Thread Type
    Speed
    Ratio
    No. of Thread
    Starts
    Travel Distance
    per Turn, mm
    Size
    Lg.
    Hardness
    Tensile Strength,
    psi
    Dynamic Thrust
    Load Cap., lb.
    Temp.,
    ° F
    Each
    Acetal
    AM2 × 0.5 mm11/16"0.297"7/16"Metric Rounded Trapezoidal
    		1:110.53/8"-24
    		3/16"Not Rated8,00010-40 to 1857549K58000000
    AM4 × 0.3 mm11/16"0.297"7/16"Metric Rounded Trapezoidal
    		1:110.33/8"-24
    		3/16"Not Rated8,00025-40 to 1857549K5900000
    AM8 × 1.5 mm1"0.548"11/16"Metric Rounded Trapezoidal
    		1:111.55/8"-18
    		1/4"Not Rated8,00075-40 to 1857549K6100000
     
    Flange Nuts—Right-Hand Thread
    Image of Product. Style C. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style C.
    Image of Product. Style D. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Metric Ultra-Precision Lead Screws and Nuts, Flange Nuts—Right-Hand Thread, Style D.

    Style C

    Style D

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

    Style C

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

    Style D

    Acetal—Acetal nuts have good wear and 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.
    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, mm
    Hardness
    Tensile Strength,
    psi
    Dynamic Thrust
    Load Cap., lb.
    No. of Mounting
    Holes
    Temp.,
    ° F
    Each
    Acetal
    CM2 × 0.5 mm1/2"0.297"—3/4"13/32"1/8"Metric Rounded Trapezoidal
    		1:139/64"10.5Not Rated8,000102-40 to 1857549K62000000
    CM4 × 0.3 mm1/2"0.297"—3/4"13/32"1/8"Metric Rounded Trapezoidal
    		1:139/64"10.3Not Rated8,000252-40 to 1857549K6300000
    DM8 × 1.5 mm3/4"0.548"1 1/8"——3/16"Metric Rounded Trapezoidal
    		1:17/8"11.5Not Rated8,000753-40 to 1857549K6400000
     

    Precision Acme Lead Screws and Nuts

    Image of ProductInUse. Front orientation. Contains Inset. Precision Lead Screws and Nuts. Precision Acme Lead Screws and Nuts.
    Pair with a motor in automated motion and positioning applications. A tight thread fit allows these lead screws and nuts to make accurate, repeatable starts and stops. 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, please select components that have the same thread direction, thread size, and number of thread starts.
    Externally Threaded Nuts—Right-Hand Thread
    Image of Product. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Precision Acme Lead Screws and Nuts, Externally Threaded Nuts—Right-Hand Thread.
    Combine externally threaded nuts with a flange to create a custom flange nut.
    Acetal—Acetal nuts have good wear and 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.
    External
    Thread
    Thread
    Size
    Lg.
    Dia.
    Thread
    Type
    Speed
    Ratio
    No. of Thread
    Starts
    Travel Distance
    per Turn
    Size
    Lg.
    Thread Fit
    Hardness
    Tensile Strength,
    psi
    Dynamic Thrust
    Load Cap., lb.
    Temp.,
    ° F
    Each
    Acetal
    3/4"-8
    		1 1/4"1.125"Acme
    		1:110.125"1"-18
    		1/2"Acme Class 2C
    		Rockwell R1208,0001,400-40 to 19090493A110000000
    3/4"-16
    		1 1/4"1.125"Acme
    		1:110.063"1"-18
    		1/2"Acme Class 2C
    		Rockwell R1208,0001,400-40 to 19090493A12000000
    1"-8
    		1 1/2"1.5"Acme
    		1:110.125"1 3/8"-16
    		1/2"Acme Class 2C
    		Rockwell R1208,0002,500-40 to 19090493A13000000
    1 1/2"-10
    		2 19/64"2.125"Acme
    		1:110.1"1 31/32"-1813/16"Acme Class 2C
    		Rockwell R1208,0005,600-40 to 19090493A140000000
     
    Flanges
    Image of Product. Front orientation. Precision Lead Screw Nut Flanges.
    Image of Attribute. Front orientation. Contains Annotated.
    Thread onto an externally threaded acme nut to create a custom flange nut.
    1117 Carbon Steel—Carbon steel flanges have good machinability. However, they will rust when exposed to moisture.
    Black-Oxide 1117 Carbon Steel—Black-oxide carbon steel flanges have mild corrosion resistance in dry environments and a dark surface color.
    1215 Carbon Steel—Carbon steel flanges have good machinability. However, they will rust when exposed to moisture.
    303 Stainless Steel—303 stainless steel flanges have good corrosion resistance.
    Flange Thread
    Size
    Flange
    Dia.
    Flange
    Thk.
    Bolt Circle
    Dia.
    Flange
    Hardness
    Each
    1117 Carbon Steel
    1 3/8"-16
    		2 49/64"33/64"2 17/64"Brinell 15695082A644000000
    1 31/32"-184 13/64"53/64"3 7/16"Brinell 15695082A64500000
     
    Black-Oxide 1117 Carbon Steel
    1 3/8"-16
    		2 49/64"33/64"2 17/64"Brinell 1351329K10400000
    1 31/32"-184 13/64"53/64"3 7/16"Brinell 1351329K10500000
     
    1215 Carbon Steel
    1"-18
    		2 5/8"17/32"2 3/32"Not Rated95082A64300000
     
    303 Stainless Steel
    1"-18
    		2 5/8"17/32"2 3/32"Brinell 1401329K1300000
    1 3/8"-16
    		2 49/64"33/64"2 17/64"Brinell 1401329K1400000
    1 31/32"-184 13/64"53/64"3 7/16"Brinell 1401329K15000000
     
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