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Duff-Norton has been manufacturing Acme and Ball Screws and Nuts for our actuator products for decades, and is now applying those years of experience to bring you an expanded assortment of screws and nuts for your application requirements. Acme Screws & Nuts offer excellent load ratings and Centralizing class screw & nut assemblies. Ball Screws & Nuts offer excellent load ratings, 90% efficiency, and long predictable life ratings.
Product






Duff-Norton has been manufacturing acme screw and nuts for our actuator products for decades, and is now applying those years of experience to bring you an expanded assortment of acme screw and nuts for your application requirements.






Acme Screw and Nut Selection Guide
Click on a part number below to download PDF

ScrewAcme ScrewScrewTurnsThreadStandardRootAcme NutAcme NutFlange
DiameterPart#Lead (in)Per InchStartsLengthDiameterPart#DescriptionPart#
1/2"050ASA010R0.10010Single6 ft..359050ANB010BronzeFL0937

050ASA020R0.2005Single6 ft..362050ANB020BronzeFL0937

050ASA025R0.2504Single6 ft..381050ANB025 (P)Bronze or PlasticFL0937

050ASA050R0.5002Double6 ft..377050ANB050 (P)Bronze or PlasticFL0937
5/8"063ASA010R0.10010Single6 ft..484063ANB010BronzeFL0937

063ASA013R0.1258Single6 ft..470063ANB013BronzeFL0937

063ASA020R0.2005Single6 ft..487063ANB020BronzeFL0937

063ASA025R0.2504Single6 ft..506063ANB025 (P)Bronze or PlasticFL0937

063ASA050R0.5002Double6 ft..506063ANB050 (P)Bronze or PlasticFL0937
3/4"075ASA0100.10010Single5 ft..608075ANB010BronzeFL1000

075ASA020R0.2005Single12 ft..517075ANB020BronzeFL1000

075ASA0250.2504Single5 ft..450075ANB025 (P)Bronze or PlasticFL1000

075ASA0500.5002Double5 ft..450075ANB050 (P)Bronze or PlasticFL1000

075ASA100R1.0001Quad12 ft..450075ANB100 (P)Bronze or PlasticFL1000
1"100ASA010R0.10010Single12 ft..857100ANB010BronzeFL1375

100ASA020R0.2005Single12 ft..751100ANB020BronzeFL1375

100ASA025R0.2504Single12 ft..715100ANB025 (P)Bronze or PlasticFL1375

100ASA050R0.5002Double12 ft..715100ANB050 (P)Bronze or PlasticFL1375

100ASA100R1.0001Quad12 ft..715100ANB100 (P)Bronze or PlasticFL1375
1 1/2"150ASA010R0.10010Single12 ft.1.355150ANB010BronzeFL1967

150ASA025R0.2504Single12 ft.1.215150ANB025BronzeFL1967

150ASA038R0.3752.67Single12 ft.1.053150ANB038BronzeFL1967

150ASA050R0.5002Double12 ft.1.196150ANB050BronzeFL1967
2"200ASA0250.2504Single12 ft.1.713200ANB025BronzeFL2548

200ASA050R0.5002Single12 ft.1.435200ANB050BronzeFL2548
2 1/4"225ASA0250.2504Single12 ft.1.944225ANB025BronzeFL3137

225ASA050R0.5002Single12 ft.1.685225ANB050BronzeFL3137
2 1/2"250ASA0250.2504Single12 ft.2.213250ANB025BronzeFL3137

250ASA050R0.5002Single12 ft.1.934250ANB050BronzeFL3137
3"300ASA0320.3203.125Single12 ft.2.761300ANB032Bronze NutsBronze Nuts

300ASA067R0.6661.52Single12 ft.2.548300ANB067with Integralwith Integral
3 3/4"375ASA0320.3203.125Single12 ft.3.390375ANB032FlangesFlanges

375ASA067R0.6662Single12 ft.3.297375ANB067Bronze NutsBronze Nuts

375ASA1331.330.75Double12 ft.3.295375ANB133with Integralwith Integral
4 1/2"450ASA0320.3203.125Single12 ft.4.139450ANB032FlangesFlanges

450ASA0670.6661.52Single12 ft.3.978450ANB067Bronze NutsBronze Nuts
5"500ASA0670.6661.52Single12 ft.4.343500ANB067with Integralwith Integral
6"600ASA0750.7501.33Single12 ft.5.196600ANB075FlangesFlanges

600ASA1001.0001Single12 ft.5.074600ANB100Bronze NutsBronze Nuts
7"700ASA1001.0001Single12 ft.6.058700ANB100with Integralwith Integral
9"900ASA1001.0001Single12 ft.7.850900ANB100FlangesFlanges