5/8 Flange Lock Nuts

Non-Serrated Flange Lock Nuts, or simply Flange Lock Nuts, have a wide flange at one end. The flange distributes the tightening torque over a wider area, but the locking function is provided by some other feature such as top-lock, center-lock, nylon insert.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
B & K FASTPALock Nut, Flange, w/o serrationsGrade GPlain5/8-115/8-11 cone flange locknut gr g plain732
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B & K FASTPALock Nut, Flange, w/o serrationsGrade GPlain5/8-185/8-18 cone flange locknuts gr g plain116
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B & K FASTPALock Nut, Flange, w/o serrationsGrade GZinc/Clear5/8-115/8-11 cone flange locknuts gr g zinc350
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NAPPCOTXLock Nut, Flange, w/o serrationsGrade 8Phosphate5/8-185/8-18 gr8 non-locking flange nut p&o5322
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NAPPCOTXLock Nut, Flange, w/o serrationsGrade 8Zinc/Yellow5/8-115/8-11 flange l/n gr8 zy300
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BHAMALLock Nut, Flange, w/o serrationsSteelZinc/Clear5/8-185/8-18 nf gr-g flanged locknut zinc600
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NutsBoltsNELock Nut, Flange, w/o serrationsGrade GPhosphate5/8-185/8-18 flange locknut gr g phos & oil623
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NutsBoltsNELock Nut, Flange, w/o serrationsGrade GPhosphate5/8-115/8-11 flange locknut gr g phos & oil550
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NutsBoltsNELock Nut, Flange, w/o serrationsGrade GZinc/Clear5/8-115/8-11 flange toplock nut gr.g zp74
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NutsBoltsNELock Nut, Flange, w/o serrationsSteelZinc/Clear5/8-115/8-11 flange ctr locknut zp351
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AmericanNYLock Nut, Flange, w/o serrationsSteelZinc/Clear5/8-11side lock flange nut pl295
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AmericanNYLock Nut, Flange, w/o serrationsSteelZinc/Clear5/8-11top lock flange nut pl50
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AmericanNYLock Nut, Flange, w/o serrationsSteelZinc/Yellow5/8-11hex top lock flange nut200
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ACCURATEILLock Nut, Flange, w/o serrationsGrade GPhosphate5/8-18flange lock nut blk phos31
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ACCURATEILLock Nut, Flange, w/o serrationsGrade GPhosphate5/8-11flange (top lock) nut grade g blk phos285
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EmpireWALock Nut, Flange, w/o serrationsGrade GPlain5/8-185/8-18 gr.g flange l/n75
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EmpireWALock Nut, Flange, w/o serrationsGrade GPlain5/8-115/8-11 gr.g flange l/n100
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ASMCILLock Nut, Flange, w/o serrationsGrade GPhosphate5/8-115/8-11 coarse grg stover all metal flange locknut med carb phos125
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ASMCILLock Nut, Flange, w/o serrationsGrade GZinc/Yellow5/8-115/8-11 coarse grg stover all metal flange locknut med carb yz unc155
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ASMCILLock Nut, Flange, w/o serrationsGrade GZinc/Yellow5/8-18fine grg stover all metal flange locknut med carb363
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AbabaCALock Nut, Flange, w/o serrationsGrade 8Plain5/8-115/8-11 non-serrated flange nut gr 8 pln310
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AbabaCALock Nut, Flange, w/o serrationsGrade GZinc/Clear5/8-185/8-18 top-pinch flange lock nut gr.g hrd stl znc579
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AbabaCALock Nut, Flange, w/o serrationsGrade GPlain5/8-115/8-11 conical flg lock nut gr.g hrd stl pln50
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OlanderCALock Nut, Flange, w/o serrationsGrade GZinc/Yellow5/8-115/8-11 flange locknut gr g stl zn ywl350
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JacksonMSLock Nut, Flange, w/o serrationsGrade GZinc/Clear5/8nc flange locknut1905
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JacksonMSLock Nut, Flange, w/o serrationsGrade GZinc/Clear5/8-18nf flange l/n gr g1443
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TownCountryARLock Nut, Flange, w/o serrationsGrade GZinc/Clear5/8-115/8-11 hex flange lock nut tech-lock+ gr. g zinc #62crfogzinquire
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FastWareSaskLock Nut, Flange, w/o serrationsGrade GCadmium5/8-115/8-11 nc flange toplock nut cad/wax126
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FastWareSaskLock Nut, Flange, w/o serrationsGrade GPhosphate5/8-185/8-18 nf flange toplock nut phos oil1,546
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QFCTXLock Nut, Flange, w/o serrationsSteelPlain5/8-185/8-18 flange nut plain n/locking178
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QFCTXLock Nut, Flange, w/o serrationsSteelPlain5/8-115/8-11 hex flange top locknut plain7,500
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SRFALLock Nut, Flange, w/o serrationsSteelPlain5/8-18flange locknut gr g25
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Wurth ConNYLock Nut, Flange, w/o serrationsGrade FZinc/Clear5/8-115/8-11 automation style hex flange cone lock nut asme b18.16.6 grade f steel zinc clear trivalent1550
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APIIALock Nut, Flange, w/o serrationsGrade GZinc/Clear5/8nut flange lock nut zncl w/wax per print wax604
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ACFCALock Nut, Flange, w/o serrationsGrade GZinc/Yellow5/8-185/8-18 grade g prevailing torque flange locknut zinc ii700
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ACFCALock Nut, Flange, w/o serrationsGrade GZinc/Yellow5/8-115/8-11 grade g prevailing torque flange locknut zinc ii350
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BHAMALLock Nut, Flange, w/o serrationsSteelZinc/Clear5/8-18srrted hex flg l/nut zn140
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BHAMALLock Nut, Flange, w/o serrationsSteelPlain5/8-11srrted hex flg l/nut (teledyne14
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RAMCOOHLock Nut, Flange, w/o serrationsGrade GCadmium/Yellow5/8-18fl 5/8-18 g cyw3000
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RAMCOOHLock Nut, Flange, w/o serrationsGrade GPhosphate5/8-115/8-11 grade g hex flange locknut phos dry to touch7800
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RAMCOOHLock Nut, Flange, w/o serrationsGrade GZinc/Yellow5/8-18fl 5/8-18 g zy3w4584
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THRDFASTFLLock Nut, Flange, w/o serrationsSteelZinc/Clear5/8-11hex flange lock nut48
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SISAZLock Nut, Flange, w/o serrationsGrade 8Plain5/8-11hex flange lock nut245
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KBSTNLock Nut, Flange, w/o serrationsGrade GCadmium5/8-115/8-11 gr g flange locknut cad&wax!539
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THRDFASTFLLock Nut, Flange, w/o serrationsGrade 8Zinc/Clear5/8-11gr 8 hex flange lock nut10
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WSBKYLock Nut, Flange, w/o serrationsSteelZinc/Yellow5/8nut flange toplock gring zy 5/8 11744
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ASMCILLock Nut, Flange, w/o serrationsGrade GZinc/Yellow5/8-18fine grg stover all metal flange locknut med carb175
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Wurth IndD.F.Lock Nut, Flange, w/o serrationsGrade 5Zinc/Yellow5/8-115/8-11 hex flange nut gr 5 yz top lock-
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Wurth IndD.F.Lock Nut, Flange, w/o serrationsGrade 5Zinc/Clear5/8-115/8-11 hex flange nut gr 5 zn top lock-
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CONTAERONJLock Nut, Flange, w/o serrationsSteelCadmium5/8-11nyn flg .0003 /25421
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CONTAERONJLock Nut, Flange, w/o serrationsNylonPlain5/8-11flange nut /3273
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CONTAERONJLock Nut, Flange, w/o serrationsGrade GPhosphate5/8-18flange toplock gr.g phos/oil185
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CONTAERONJLock Nut, Flange, w/o serrationsGrade GPhosphate5/8-11flange toplock gr.g phos/oil2442
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CONTAERONJLock Nut, Flange, w/o serrationsGrade GPlain5/8-11flange toplock gr.g10449
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CONTAERONJLock Nut, Flange, w/o serrationsGrade GZinc/Yellow5/8-11flange toplock gr.g zn/yel/wax4
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CONTAERONJLock Nut, Flange, w/o serrationsGrade GPlain5/8-185/8-18 flange toplock gr.g4712
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CONTAERONJLock Nut, Flange, w/o serrationsGrade GPlain5/8-115/8-11 flange toplock grg6238
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CONTAERONJLock Nut, Flange, w/o serrationsSteelPlain5/8-11nyn flange l/n .0003 tri.48575
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GLFOHLock Nut, Flange, w/o serrationsGrade 8Plain5/8-11hex flg nut gr 8 stl265
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GLFOHLock Nut, Flange, w/o serrationsGrade GPlain5/8-18hex flg lock nut gr g nut94
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GLFOHLock Nut, Flange, w/o serrationsGrade GPlain5/8-18hex flg nut gr g nut90
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GLFOHLock Nut, Flange, w/o serrationsGrade GPlain5/8-11hex flg lock nut gr g nut50
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Kanebridge ILLock Nut, Flange, w/o serrationsSteelZinc/Clear5/8-115/8-11 non-serrated flange hex nuts case hardened hr15n 78/90 zinc and bake3.750
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Kanebridge ILLock Nut, Flange, w/o serrationsGrade GZinc/Yellow5/8-115/8-11 regular flange top lock hex nut grade g zinc yellow7.500
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Kanebridge ILLock Nut, Flange, w/o serrationsSteelZinc/Clear5/8-115/8-11 non serrated regular flange center locknut grade f zinc8.750
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AztechILLock Nut, Flange, w/o serrationsSteelPlain5/8-18reg flg center lock4,620
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AztechILLock Nut, Flange, w/o serrationsSteelPlain5/8-18reg flg tech lock778
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AztechILLock Nut, Flange, w/o serrationsSteelPlain5/8-11reg flg tech lock16
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AztechILLock Nut, Flange, w/o serrationsGrade FZinc/Yellow5/8-18reg flg center lock /w3,970
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AztechILLock Nut, Flange, w/o serrationsGrade FPlain5/8-18reg flg center lock484
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AztechILLock Nut, Flange, w/o serrationsGrade FZinc/Yellow5/8-18reg flg center lock /w4,620
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AztechILLock Nut, Flange, w/o serrationsGrade FZinc/Yellow5/8-18reg flange tech+ lock nut .0003/w766
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AztechILLock Nut, Flange, w/o serrationsGrade FPlain5/8-18reg flange tech+ lock nut1,600
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AztechILLock Nut, Flange, w/o serrationsGrade FPhosphate5/8-18reg flange tech lock nut 96 hr phos/oil2,000
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Valley NuWALock Nut, Flange, w/o serrationsGrade GPlain5/8-18nf flange lock nut pl246
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Valley NuWALock Nut, Flange, w/o serrationsGrade GPlain5/8-11nc flange lock nut pl295
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TimberlineCOLock Nut, Flange, w/o serrationsGrade GZinc/Clear5/8-11gr g hx flng lk nut zn 5/8-112150
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TimberlineCOLock Nut, Flange, w/o serrationsSteelZinc/Clear5/8-11uni-drv flng hx nut zn 5/8-111063
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Alma BoltMILock Nut, Flange, w/o serrationsGrade GPlain5/8-18SAE finish flanged hex nut (no lock)594
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