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#4-40 Top Locking Nuts

Automation-Style Lock Nuts, Top Locking Lock Nuts or Stover Lock Nuts are lock nuts with a locking feature deformed into the top of the nut. This deformation crimps the internal thread, increasing its friction against the mating bolt or stud, leading to the locking feature.

58 results, (click on any line for more information)

Search Results Sponsored by Perigee Manufacturing, your source for All Metal Top-Lock Nuts. For more results, visit   perigeemfg.com
SupplierLocTypeMaterialFinishSizeDescriptionQty 
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MAINSOURCNHLock Nut, Top Locking, All Metal (Automation style, etc.)316, 317, A4 StainlessPlain#4-404-40 ny insert l/n (ne/nm) 316 ss50
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MAINSOURCNHLock Nut, Top Locking, All Metal (Automation style, etc.)SteelPlain#4-40ms21042l04 (4-40 kaynar l/n stl c&y lub)158
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HayesCALock Nut, Top Locking, All Metal (Automation style, etc.)SteelCadmium#4-404-40 full/lite flex style l/n cad i900
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HayesCALock Nut, Top Locking, All Metal (Automation style, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40ms21045c04 4-40 all metal locknut 18-8154
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HayesCALock Nut, Top Locking, All Metal (Automation style, etc.)Superalloy (Inconel, Hastelloy, Alloy 20)Plain#4-40ms21072l04 4-40 locking nutplate a286 dfl 450238
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IndexFastCALock Nut, Top Locking, All Metal (Automation style, etc.)SteelPlain#4-40n440nlss 4-40 nylon insert lock nut stainless steelinquire
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Cal FastenrsCALock Nut, Top Locking, All Metal (Automation style, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40hex nylok nut low profile 18-8 304 nylon lock nt 4CNNE3/LOW60
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Cal FastenrsCALock Nut, Top Locking, All Metal (Automation style, etc.)SteelZinc/Clear#4-40hex nylok nut low profile i see 4cnnez/cr3low 4CNNEZ/LOW100
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Cal FastenrsCALock Nut, Top Locking, All Metal (Automation style, etc.)SteelZinc/Clear#4-40flex lock nut 21fa-440893
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MTPCALock Nut, Top Locking, All Metal (Automation style, etc.)SteelCadmium#4-40# 4-40 cad flex-lock nuts a bb 100 fb 500 qk 2500200
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AIHAZLock Nut, Top Locking, All Metal (Automation style, etc.)SteelPlain#4-404-40 self locking nut dry film lube MS21042L047702
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AIHAZLock Nut, Top Locking, All Metal (Automation style, etc.)SteelPlain#4-40lock nut reduced height 4-40 s/s MS21043-044648
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AIHAZLock Nut, Top Locking, All Metal (Automation style, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40nut 304ss MS21045C04246
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AIHAZLock Nut, Top Locking, All Metal (Automation style, etc.)SteelPlain#4-40nut NAS679A04W26
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AIHAZLock Nut, Top Locking, All Metal (Automation style, etc.)SteelCadmium/Yellow#4-404-40 lock nut cad plating MS21042-0419
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NAPPCOTXLock Nut, Top Locking, All Metal (Automation style, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 18-8 304 flexloc full height FLE-50FA440 40
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OneMonroeNCLock Nut, Top Locking, All Metal (Automation style, etc.)SteelPlain#4-40nutplate self-locking one-lug 4-40 thread55
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OneMonroeMALock Nut, Top Locking, All Metal (Automation style, etc.)SteelPlain#4-40 x .040nut miniature non locking #4-40 x .0401000
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LibertyILLock Nut, Top Locking, All Metal (Automation style, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 flex-loc nut light 18-8 s/s 18-8 s/s100
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AmericanNYLock Nut, Top Locking, All Metal (Automation style, etc.)SteelZinc/Yellow#4-40nylon stop nut zy4400
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QCSORLock Nut, Top Locking, All Metal (Automation style, etc.)SteelPlain#4-404-40 hex nut self locking ms21042l042000
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RCFastAZLock Nut, Top Locking, All Metal (Automation style, etc.)SteelPlain#4-40nut, self-locking, hex flange, 4-40 MS21043-04132
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AFIFLLock Nut, Top Locking, All Metal (Automation style, etc.)SteelPlain#4-404-40 self-locking nut ss silver ()2817
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OlanderCALock Nut, Top Locking, All Metal (Automation style, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 self-locking nut sst steel ()2217
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OlanderCALock Nut, Top Locking, All Metal (Automation style, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 miniature locknut sst ()1377
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MFSKSLock Nut, Top Locking, All Metal (Automation style, etc.)Nylon (Polyamide)Plain#4-40lock nut763
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SPCTXLock Nut, Top Locking, All Metal (Automation style, etc.)SteelPlain#4-404-40 light hex full height flexslot steel plain 20fa-440 flexloc17555
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SPCTXLock Nut, Top Locking, All Metal (Automation style, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 microsoze flexslot 18-8 304 steel w/dry film lube 58fm-44074
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SPCTXLock Nut, Top Locking, All Metal (Automation style, etc.)SteelZinc/Yellow#4-404-40 light hex full height flexlsot top lock nut steel zinc yellow and wax 23fa-440-y422
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SPCTXLock Nut, Top Locking, All Metal (Automation style, etc.)SteelCadmium#4-404-40 light hex full height flexslot steel cad ii 27fa-440201
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SPCTXLock Nut, Top Locking, All Metal (Automation style, etc.)SteelPlain#4-404-40 microsize flexslot steel 30fm-440196
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SPCTXLock Nut, Top Locking, All Metal (Automation style, etc.)SteelZinc/Clear#4-404-40 light hex full height flexslot steel zinc 23fa-440796
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SPCTXLock Nut, Top Locking, All Metal (Automation style, etc.)BrassPlain#4-404-40 microsize flexlsot brass 60fm-440 flexloc8
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GlobalCALock Nut, Top Locking, All Metal (Automation style, etc.)SteelPlain#4-40MS21043-0412,860
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GlobalCALock Nut, Top Locking, All Metal (Automation style, etc.)SteelCadmium/Yellow#4-40MS21042-04280
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GlobalCALock Nut, Top Locking, All Metal (Automation style, etc.)SteelPlain#4-40MS21042L04120
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SJS ProdCALock Nut, Top Locking, All Metal (Automation style, etc.)SteelZinc/Yellow#4-40 x 1/44-40 x 1/4 fill/hd slot mod thd lng=.125 st zy
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ULTRACALock Nut, Top Locking, All Metal (Automation style, etc.)SteelCadmium#4-40flexloc 21fa4404100
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ULTRACALock Nut, Top Locking, All Metal (Automation style, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#4-40flexloc 50fa4403500
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ULTRACALock Nut, Top Locking, All Metal (Automation style, etc.)SteelPlain#4-40flexloc 20fa440900
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SPCTXLock Nut, Top Locking, All Metal (Automation style, etc.)SteelPlain#4-40flexloc 20fa-440 4-40 light hex full height flexslot steel plain17000
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SPCTXLock Nut, Top Locking, All Metal (Automation style, etc.)SteelZinc/Yellow#4-404-40 light hex full height flexslotted steel zinc yellow and wax497
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SPCTXLock Nut, Top Locking, All Metal (Automation style, etc.)SteelCadmium#4-404-40 light hex full height flexslot steel cad ii201
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SPCTXLock Nut, Top Locking, All Metal (Automation style, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 microsize flexslot 18-8 304 steel w/dry film lube (flexloc)74
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SPCTXLock Nut, Top Locking, All Metal (Automation style, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Silver Plated#4-404-40 light hex full height flexslot 18-8 s/s silver plated2086
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SPCTXLock Nut, Top Locking, All Metal (Automation style, etc.)SteelPlain#4-404-40 microsize flexslot steel (flexloc)196
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DeltaTXLock Nut, Top Locking, All Metal (Automation style, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40nut flexloc full height light hex 18-8 sst 4-40 (FLEXLOC)100
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DeltaTXLock Nut, Top Locking, All Metal (Automation style, etc.)SteelCadmium#4-40flex-.oc typ ln cad 4-40285
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OneMonroeMILock Nut, Top Locking, All Metal (Automation style, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40pem alternative plc-440 captive cplc440 self-locking nut ss thread-4-401000
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OneMonroeMILock Nut, Top Locking, All Metal (Automation style, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Phosphate#4-40pem alternative feo-440 captive cfeo440 miniture nut self-locking ss blk dry film lube thread-4-401245
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TSFTXLock Nut, Top Locking, All Metal (Automation style, etc.)SteelCadmium/Yellow#4-40locking ss nut280
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DeltaTXLock Nut, Top Locking, All Metal (Automation style, etc.)SteelCadmium#4-40nut flexloc full height light hex cad 4-40990
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TrifastTXLock Nut, Top Locking, All Metal (Automation style, etc.)SteelPlain#4-404-40unc floating nut non lock-2 stl astmb633z1cr3bakesrt6662
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TrifastTXLock Nut, Top Locking, All Metal (Automation style, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 hex loc nut a2 s/s .246a/f .89thk plain self finish1616
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Mid-ValleyCALock Nut, Top Locking, All Metal (Automation style, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40lock nut top locking all metal (automation style etc.) b18.2.2inquire
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ASFCORPMILock Nut, Top Locking, All Metal (Automation style, etc.)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-404-40 full hgt hex ny in lock nut ss pkg500
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MTPCALock Nut, Top Locking, All Metal (Automation style, etc.)SteelCadmium#4-40#4-40 cad flex-lock nuts200
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CONTAERONJLock Nut, Top Locking, All Metal (Automation style, etc.)SteelZinc/Clear#4-40kl locknut Cr3+673600
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