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    23 Products

    Acme Lead Screws and Nuts

    Image of ProductInUse. Front orientation. Contains Inset. Lead Screws and Nuts. Acme Lead Screws and Nuts.
    Found in hand-powered clamps, vises, grates, doors, and work tables, lead screws and nuts have broad, square threads that are well suited for quick assembly, high clamping forces, and lifting and lowering heavy objects. To ensure compatibility, please select components that have the same thread direction, thread size, and number of thread starts.
    Round Nuts—Right-Hand Thread
    Image of Product. Front orientation. Lead Screws and Nuts. Acme Lead Screws and Nuts, Round Nuts—Right-Hand Thread.
    Round nuts move objects along the length of a lead screw.
    Cast Iron—Cast iron components have good machinability and high strength.
    360 Brass—360 brass components have excellent machinability and good corrosion resistance.
    932 Bearing Bronze—932 bearing bronze components are more wear resistant than brass components. They have good machinability and fair corrosion resistance.
    Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut or handle moves with one revolution of the lead screw.
    Thread
    Size
    Thread
    Type
    Ht.
    Dia.
    No. of Thread
    Starts
    Speed
    Ratio
    Travel Distance
    per Turn
    Thread Fit
    Hardness
    Tensile
    Strength
    Specs.
    Met
    Each
    Cast Iron
    5/8"-8
    		Acme
    		1 1/4"1 55/64"11:10.125"Acme Class 2G
    		Rockwell B96Not Rated—95080A108000000
     
    360 Brass
    5/8"-8
    		Acme
    		5/8"1"11:10.125"Acme Class 2G
    		Rockwell B55Not RatedASTM B1695100A10500000
     
    932 Bearing Bronze
    5/8"-8
    		Acme
    		1 1/32"1 9/32"11:10.125"Acme Class 2G
    		Not RatedNot RatedASTM B50595090A10800000
     
    Round Nuts—Left-Hand Thread
    Image of Product. Front orientation. Lead Screws and Nuts. Acme Lead Screws and Nuts, Round Nuts—Left-Hand Thread.
    Round nuts move objects along the length of a lead screw.
    Cast Iron—Cast iron components have good machinability and high strength.
    360 Brass—360 brass components have excellent machinability and good corrosion resistance.
    932 Bearing Bronze—932 bearing bronze components are more wear resistant than brass components. They have good machinability and fair corrosion resistance.
    Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut or handle moves with one revolution of the lead screw.
    Thread
    Size
    Thread
    Type
    Ht.
    Dia.
    No. of Thread
    Starts
    Speed
    Ratio
    Travel Distance
    per Turn
    Thread Fit
    Hardness
    Tensile
    Strength
    Specs.
    Met
    Each
    Cast Iron
    5/8"-8
    		Acme
    		1 1/4"1 55/64"11:10.125"Acme Class 2G
    		Rockwell B96Not Rated—95080A408000000
     
    360 Brass
    5/8"-8
    		Acme
    		5/8"1"11:10.125"Acme Class 2G
    		Rockwell B55Not RatedASTM B1695100A40500000
     
    932 Bearing Bronze
    5/8"-8
    		Acme
    		1 1/32"1 9/32"11:10.125"Acme Class 2G
    		Not RatedNot RatedASTM B50595090A40800000
     

    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.
    Round Nuts—Right-Hand Thread
    Image of Product. Front orientation. Precision Lead Screws and Nuts. Precision Acme Lead Screws and Nuts, Round Nuts—Right-Hand Thread.
    Iron—Iron nuts have good machinability and high strength.
    932 Bearing Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.
    PET—PET plastic nuts are lightweight and corrosion resistant.
    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.
    Thread
    Size
    Lg.
    Dia.
    Thread
    Type
    Speed
    Ratio
    No. of Thread
    Starts
    Travel Distance
    per Turn
    Thread Fit
    Hardness
    Tensile
    Strength
    Dynamic Thrust
    Load Cap., lb.
    Temp.,
    ° F
    Each
    Iron
    5/8"-8
    		1 1/4"1.859"Acme
    		1:110.125"Acme Class 2C
    		Brinell 217Not RatedNot Rated—95365A119000000
     
    932 Bearing Bronze
    5/8"-8
    		1 1/4"1.859"Acme
    		1:110.125"Acme Class 2C
    		Brinell 65Not Rated2,000—1343K13200000
     
    PET
    5/8"-8
    		1 1/4"1.859"Acme
    		1:110.125"Acme Class 2C
    		Not RatedNot Rated1,00015 to 1751349K13600000
     
    Round Nuts—Left-Hand Thread
    Image of Product. Front orientation. Precision Lead Screws and Nuts. Precision Acme Lead Screws and Nuts, Round Nuts—Left-Hand Thread.
    Iron—Iron nuts have good machinability and high strength.
    932 Bearing Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.
    PET—PET plastic nuts are lightweight and corrosion resistant.
    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.
    Thread
    Size
    Lg.
    Dia.
    Thread
    Type
    Speed
    Ratio
    No. of Thread
    Starts
    Travel Distance
    per Turn
    Thread Fit
    Hardness
    Tensile
    Strength
    Dynamic Thrust
    Load Cap., lb.
    Temp.,
    ° F
    Each
    Iron
    5/8"-8
    		1 1/4"1.859"Acme
    		1:110.125"Acme Class 2C
    		Brinell 217Not RatedNot Rated—95365A319000000
     
    932 Bearing Bronze
    5/8"-8
    		1 1/4"1.859"Acme
    		1:110.125"Acme Class 2C
    		Brinell 65Not Rated2,000—1343K23200000
     
    PET
    5/8"-8
    		1 1/4"1.859"Acme
    		1:110.125"Acme Class 2C
    		Not RatedNot Rated1,00015 to 1751349K13700000
     
    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.
    673 Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.
    PET—PET plastic nuts are lightweight and corrosion resistant.
    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
    Dynamic Thrust
    Load Cap., lb.
    Temp.,
    ° F
    Each
    673 Bronze
    5/8"-8
    		1"1.125"Acme
    		1:110.125"15/16"-16
    		1/2"Acme Class 2C
    		Brinell 70Not RatedNot Rated—95072A111000000
     
    PET
    5/8"-8
    		1"1.125"Acme
    		1:110.125"15/16"-16
    		1/2"Acme Class 2C
    		Not RatedNot Rated1,00015 to 17595075A10900000
     
    Externally Threaded Nuts—Left-Hand Thread
    Image of Product. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Precision Acme Lead Screws and Nuts, Externally Threaded Nuts—Left-Hand Thread.
    Combine externally threaded nuts with a flange to create a custom flange nut.
    673 Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair 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
    Dynamic Thrust
    Load Cap.
    Each
    673 Bronze
    5/8"-8
    		1"1.125"Acme
    		1:110.125"15/16"-16
    		1/2"Acme Class 2C
    		Brinell 70Not RatedNot Rated95072A211000000
     
    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.
    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
    Black-Oxide 1117 Carbon Steel
    15/16"-16
    		2 39/64"17/32"2 3/32"Brinell 1351329K102000000
     
    1215 Carbon Steel
    15/16"-16
    		2 5/8"17/32"2 3/32"Not Rated95082A64200000
     
    303 Stainless Steel
    15/16"-16
    		2 5/8"17/32"2 3/32"Brinell 1401329K1200000
     

    Fast-Travel Precision Acme Lead Screws and Nuts

    Image of ProductInUse. Front orientation. Contains Inset. Precision Lead Screws and Nuts. Fast-Travel Precision Acme Lead Screws and Nuts.
    Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start. The threads have a tight thread fit for accurate, repeatable starts and stops. Pair with a motor in automated motion and positioning applications. 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. Fast-Travel 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.
    360 Brass—360 brass nuts have excellent machinability and 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.
    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
    Dynamic Thrust
    Load Cap., lb.
    Each
    360 Brass
    5/8"-8
    		1"1.125"Acme
    		2:120.25"15/16"-16
    		1/2"Acme Class 2C
    		Brinell 130Not Rated1,90095072A321000000
     
    Externally Threaded Nuts—Left-Hand Thread
    Image of Product. Front orientation. Contains Annotated. Precision Lead Screws and Nuts. Fast-Travel Precision Acme Lead Screws and Nuts, Externally Threaded Nuts—Left-Hand Thread.
    Combine externally threaded nuts with a flange to create a custom flange nut.
    360 Brass—360 brass nuts have excellent machinability and 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.
    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
    Dynamic Thrust
    Load Cap., lb.
    Each
    360 Brass
    5/8"-8
    		1"1.125"Acme
    		2:120.25"15/16"-16
    		1/2"Acme Class 2C
    		Brinell 130Not Rated1,90095072A322000000
     
    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.
    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
    1215 Carbon Steel
    15/16"-16
    		2 5/8"17/32"2 3/32"Not Rated95082A642000000
     
    303 Stainless Steel
    15/16"-16
    		2 5/8"17/32"2 3/32"Brinell 1401329K1200000
     

    Clamping Acme Lead Screw Collars

    Image of Product. Front orientation. Lead Screw Collars. 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.
    Black-Oxide 12L14 Carbon Steel—Black-oxide carbon steel collars have mild corrosion resistance.
    303 Stainless Steel—303 stainless steel collars have good corrosion resistance.
    Thread
    Size
    OD
    Wd.
    No. of Thread
    Starts
    Hardness
    Each
    Right-Hand Thread
     
    Black-Oxide 12L14 Carbon Steel
    5/8"-8
    		1 5/8"1/2"1Brinell 1636698K14000000
     
    303 Stainless Steel
    5/8"-8
    		1 5/16"7/16"1Brinell 2282228N1200000
     

    Two-Piece Clamping Acme Lead Screw Collars

    Image of Product. Front orientation. Lead Screw Collars. 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.
    Black-Oxide 12L14 Carbon Steel—Black-oxide carbon steel collars have mild corrosion resistance.
    Thread
    Size
    OD
    Wd.
    No. of Thread
    Starts
    Hardness
    Each
    Right-Hand Thread
     
    Black-Oxide 12L14 Carbon Steel
    5/8"-8
    		1 5/8"1/2"1Brinell 1632224N16000000
     
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