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Split Lock Washer (ANSI ASME 18.21.1)

Split Lock Washers feature a helical-shaped split ring that has also been twisted. When fastened, the two sharp ends exert a spring force on the fastener to create increased friction and resistance to motion. Helical spring lock washers are the most common form of lock washer and are best suited to applications with smaller loads.

0 Split Lock Washer (ansi b18.21.1), showing 200, (click on any line for more information)

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
SWACOOHSplit Lock Washer316, 317, A4 StainlessPlainM8m8 split spring washer a4 din 127b92
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SWACOOHSplit Lock WasherPlain#8#8 reg split lock wash pln9675
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SWACOOHSplit Lock WasherZinc/Yellowms35338-424975
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SWACOOHSplit Lock WasherSteelZinc/Yellowlock washer ms35338-46735
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SWACOOHSplit Lock WasherGalvanized5/165/16 reg split lock wash hdg650
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SWACOOHSplit Lock WasherSteelZinc/YellowM8m8 split l/w stl ylw zinc din 127b100
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SWACOOHSplit Lock WasherSteelPlainM5m5 split lw stl plain din 1271000
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CenturyFLSplit Lock WasherSilicon BronzePlain#10#10 medium l/w sil brnz1
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CenturyFLSplit Lock Washer316, 317, A4 StainlessPlainM8m8 curved lockwash a4-70 a4-70 din 128a308
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CenturyFLSplit Lock WasherSteelZinc/Yellow1/41/4 medium l/w steel zi & yel zinc/yellow7286
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CenturyFLSplit Lock WasherSteelPlainM16m16.0 plain steel split lock washers din 1271979
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CenturyFLSplit Lock WasherPlain#0ms51848-4121
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CenturyFLSplit Lock WasherPlainM5b18212hrrn050 washer lock m550
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CenturyFLSplit Lock Washer316, 317, A4 StainlessPlain5/165/16 medium lock washer 316 s/s6
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CenturyFLSplit Lock WasherPlain#10ms35338-13854204
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CenturyFLSplit Lock WasherSteelPlain1/4ms35338-44p lockwasher100
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CenturyFLSplit Lock WasherPlain#4ms35338-135175215
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CenturyFLSplit Lock Washer316, 317, A4 StainlessPlainM12m12 split lockwasher 316 a4 stainless din 12790
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CenturyFLSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4.0m4.0 split l/w stainless steel din 127b120
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CenturyFLSplit Lock WasherCadmium/Yellow1/2ms35338-489680
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CenturyFLSplit Lock WasherSteelZinc/Yellow#12#12 light l/w steel zi & yel zinc/yellow59763
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CenturyFLSplit Lock WasherBlack Oxide030153-007 per print rev p lock washer black oxide1050
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CenturyFLSplit Lock WasherSilicon BronzePlain#4#4 medium l/w sil brnz nick brt nickel175
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CenturyFLSplit Lock WasherSteelZinc/YellowM4m4 lockwasher stl zinc yellow din 1283000
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CenturyFLSplit Lock WasherSilicon BronzePlain1/21/2 medium l/w sil brnz4448
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AccutiteCASplit Lock WasherSteelNickel Plated.0001-.0003#2 med split lockwasher steel plated watts nickel(.0001-.0003)5700
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OneMonroeMASplit Lock WasherSteelZinc/ClearM6m6 splt l/w rohs stl z/cl din 127b2000
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OneMonroeMASplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain7/87/8 lock washer-s.s.14
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OneMonroeMASplit Lock WasherSteelZinc/Yellow1/41/4 light split lockwasher stl z & y60
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GLFOHSplit Lock WasherSteelZinc/ClearM5m5 split lockwasher-thru-hardened-zinc-cr3206
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GLFOHSplit Lock WasherSteelZinc/YellowM10m10 lock washer stl zy cr3543
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GLFOHSplit Lock WasherSteelZinc/Yellow11 lock washer stl thru-hard zy109
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GLFOHSplit Lock WasherGrade 8Zinc/Yellow5/85/8 lock washer gr 8 stl zy8317
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GLFOHSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/43/4 lock washer 18-8 s/s245
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GLFOHSplit Lock WasherSteelZinc/ClearM30m30 lock washer stl zc din 127b36
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GLFOHSplit Lock WasherGrade 8Zinc/Yellow3/83/8 lock washer gr 8 stl mech zy cr 33013
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GLFOHSplit Lock WasherSteelFluoropolymer-Based (Xylan, Fluorokote, Teflon)1/21/2 lock washer stl zc xylan 14244
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GLFOHSplit Lock WasherSteelPlain3/83/8 lock washer stl pln4434
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BoltCraftNESplit Lock WasherPlain3/83/8 medium split lock washer black delta kl 480 2 500/ctn2500
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BoltCraftNESplit Lock WasherBlack Oxide1/41/4 medium split lock washer black oxide7357
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BoltCraftNESplit Lock WasherGalvanized7/87/8 medium split lock washer galvanized 750/ctn-100/pkg570
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AIHAZSplit Lock Washer316, 317, A4 StainlessPlainM4m4 split lockwasher a4 s/s458
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CIFILSplit Lock WasherGrade 2Zinc/Clear3/83/8 split lock washer grade 2 zinc plated106
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CIFILSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8m8 med split lockwasher 18-8 ss2500
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CIFILSplit Lock WasherGrade 2Zinc/Clear11 splitlock washer grade 2 zinc plated122
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CIFILSplit Lock WasherGrade 2Galvanized5/85/8 splitlock washer grade 2 hot dip galvanized498
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OneMonroeMNSplit Lock WasherCadmium/Yellow1/4ms35338-101124
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OneMonroeMNSplit Lock WasherSteelZinc/Clear9/169/16 lock washer zp167
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OneMonroeMNSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide0.385 x 0.55black-oxide 18-8 stainless steel split lock washer for 3/8 socket head screws 0.385 id 0.55 od2000
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OneMonroeMNSplit Lock WasherSteelZinc/Clear3/83/8 regular split l/w stl zncyl300
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OneMonroeMNSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8m8 medium split lock washer 18-8 ss din 127b2578
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OneMonroeMNSplit Lock WasherSteelGalvanized3/83/8 regular split l/w stl mechgalv535
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OneMonroeMNSplit Lock WasherSteelZinc/Clear3/83/8 lock washer domestic plated96
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OneMonroeMNSplit Lock WasherSteelZinc/ClearM10m10 lock washer zinc din 127b-mech.mech.1431
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OneMonroeMNSplit Lock WasherSteelPlainM8m8 medium split lockwasher steel black3239
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OneMonroeMNSplit Lock WasherSteelZinc/ClearM16m16 split lockwasher zinc plated1
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OneMonroeMNSplit Lock Washer316, 317, A4 StainlessPlain1/41/4 split lock washer 316 ss360
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OneMonroeMNSplit Lock Washer316, 317, A4 StainlessPlain#10#10 lock washer 316 ss327
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OneMonroeMNSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated5/85/8 medium split lock washer 18-8 ss passivated800
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OneMonroeMNSplit Lock WasherPlain1/41/4 lock washer sc-1 coated328
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Alma BoltMISplit Lock WasherGalvanized2 1/22 1/2 hdg lock washer119
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Alma BoltMISplit Lock WasherPlain3/83/8 light pattern lock washer5247
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Alma BoltMISplit Lock WasherPlain11 extra duty lock washer2874
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BrikksenFLSplit Lock Washer316, 317, A4 StainlessPlainM12split lock washer a4 m12 din 127binquire
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BrikksenFLSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10#10 med lock washer ss 1000 per box .047 min thk40
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BrikksenFLSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM24split lock washer a2 (1.4310) m24 din 127b5000
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BrikksenFLSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM2.5split lock washer a2 (1.4310) m2.5 din 127binquire
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BrikksenFLSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/21/2 med.lock washer ss/chrome-inquire
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BrikksenFLSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/41/4 med lock washer ss/chrome-165000
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BrikksenFLSplit Lock Washer316, 317, A4 StainlessPlain1/41/4 med lock washer 316ss 100 per box .062 min thkinquire
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BrikksenFLSplit Lock Washer316, 317, A4 StainlessPlainM18split lock washer a4 m18 din 127b1000
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BrikksenFLSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM8split lock washer-50 per bag a2 (1.4310) m8 din 127binquire
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BrikksenFLSplit Lock Washer316, 317, A4 StainlessPlainM18split lock washer a4 m18 din 127b1000
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BrikksenFLSplit Lock WasherAluminumPlain1/41/4 med lock washer aluminum .062 min thk1000
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BrikksenFLSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM20split lock washer a2 (1.4310) m20 din 127b4000
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BrikksenFLSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM2split lock washer a2 (1.4310) m2 din 127binquire
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BrikksenFLSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain7/167/16 med lock washer ss .109 min thk6000
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BrikksenFLSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM3spring lock washer curved (type-a) a2 m3 type-a din 128inquire
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BrikksenFLSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain7/167/16 lock washer 18-8 ss 50 per small bag 5 small bags per master pack-generic brandinquire
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BrikksenFLSplit Lock Washer316, 317, A4 StainlessPlain#12#12 med lock washer 316ss .056 min thkinquire
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BrikksenFLSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/21 1/2 med lock washer s/s .375 min thkinquire
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BrikksenFLSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 lock washer 18-8 ss 100 per small bag 5 small bags per master pack-generic brand44000
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BrikksenFLSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain7/167/16 lock washer 18-8 ss 50 per small bag 5 small bags per master pack-generic brandinquire
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OptimasILSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/21/2 split lock washer 18-8 ss (p)3146
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OptimasILSplit Lock WasherSteelZinc/YellowM10m10 bs4464 type-a split lock washer steel zinc yellow .0003 (i)1800
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OptimasILSplit Lock WasherGrade 8Zinc/Yellow1/41/4 split lock washer high alloy zinc yellow trivalent rohs compliant16205
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American WISplit Lock WasherGrade 8Zinc/Yellow3/43/4 med split lock washer gr 8 zinc yellow usa2240
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DeltaTXSplit Lock WasherGrade 8Zinc/Clear3/8lock gr 82830
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DeltaTXSplit Lock WasherSteelPlain1 3/8lock c/s792
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DeltaTXSplit Lock WasherSteelZinc/Clear5/16lock c/s21150
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AFT FasteTXSplit Lock WasherSteelZinc/ClearM12M12 split lock washer zinc cr3 hardened din 127b784
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Coburn Myers Fastening SystemsPASplit Lock Washer316, 317, A4 StainlessPlainsplit lock washer 316 stainless plain1
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Coburn Myers Fastening SystemsPASplit Lock Washer316, 317, A4 StainlessPlainsplit lock washer a4 stainless plain319
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Coburn Myers Fastening SystemsPASplit Lock WasherSteelPlainsplit lock washer carbon steel plain2422
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BrikksenFLSplit Lock WasherPlain7/167/16 med. lock washer s/z .109 min thk 349009inquire
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BrikksenFLSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM4m4 lock washer 18-8 ss 100 per small bag 5 small bags per master pack-generic brand din 127binquire
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KomarILSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM6m6 med split lock washer 18-8 ss
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NutsBoltsNESplit Lock WasherSteelZinc/Clear11 split lock washer zp usa376
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OneMonroeMASplit Lock WasherPlainM3m3 plain finish split lock washer din 1271236
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OneMonroeMASplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain11/2 military split lock washer dfar 316 stainless steel ms35338 500/carton566
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OneMonroeMASplit Lock WasherSteelGalvanized3/8washer 3/8 medium split lock washer hot dip galvanized 2000/ctn329
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OneMonroeMASplit Lock WasherSteelZinc/Clear#12#12 split lockwasher plated3950
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OneMonroeMASplit Lock WasherSteelPlainlockwasher38
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OneMonroeMASplit Lock WasherSteelZinc/YellowM6m6 l/w zy200
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OneMonroeMASplit Lock WasherSteelPlainlockwasher44
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EmpireWASplit Lock WasherSteelZinc/Clear3/43/4 med split l/w zp36
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EmpireWASplit Lock WasherSteelZinc/ClearM8m8 split lockwasher zp2300
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EmpireWASplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10#10 med. split l/w 18-8 s.s.12700
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EmpireWASplit Lock WasherSteelPlain1 1/41-1/4 med split lockwasher195
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Raw ProduNJSplit Lock WasherGrade 8Plain1split ring lock washers grade 8 1508
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Raw ProduNJSplit Lock Washer316, 317, A4 StainlessPlain1/4lock washers medium 316 ss 1/45295
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Raw ProduNJSplit Lock WasherSteelGalvanized1 1/4split ring lock washers hdg 1-1/4374
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Raw ProduNJSplit Lock WasherSteelGalvanized1/4split ring lock washers hdg 1/415525
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Mil-Spec MDSplit Lock WasherSteelZinc/Clear#4#4 light lock washer steel zinc plated207500
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F. SolutionsOHSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4split lock washer #4 per ms35338-135 ss78
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F. SolutionsOHSplit Lock Washer316, 317, A4 StainlessFluoropolymer-Based (Xylan, Fluorokote, Teflon)1/21/2 lock 316 s/s blue teflon 108
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F. SolutionsOHSplit Lock WasherSteelPlainstandard split lock 4 c276183
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WINAMNSplit Lock WasherSteelPlain3/4wsh hc splt lock washer st pl 3/41015
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WINAMNSplit Lock WasherAluminumNon-Electrolytic Zinc & Aluminum Flakes + MatrixM10split lockwasher b zfsh 10 din 127191180
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ManscoMISplit Lock WasherSteelZinc/Black1/4reg split l/w triv blk znc duplicate see pt #200-179423948
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AFIFLSplit Lock WasherSteelZinc/Clear1/41/4 light lock washer st zn5530
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AFIFLSplit Lock WasherSteelZinc/Yellow#8#8 med split lock washer st zd rohs () ()1300
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OlanderCASplit Lock WasherSteelCadmium1/2 split l/w steel cad 2 or zn 2143
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OlanderCASplit Lock WasherSteelCadmium6 split l/w steel cad 2 or zn 27588
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OlanderCASplit Lock WasherGrade 8Zinc/Yellow9/16 split l/w gr 8 zn ylw non-rohs39
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OlanderCASplit Lock WasherPhosphor BronzePlain4 split l/w phos brz or tin brz cad 288
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OlanderCASplit Lock WasherSteelZinc/ClearM2.6m2.6 split l/w stl blk rohs () ()5283
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KomarILSplit Lock WasherSteelPlain#12#12 med split lock22541
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3Q, Inc.ILSplit Lock WasherSteelGalvanized1 1/41-1/4 regular split lockwasher steel hdg b18.21.1 b27.111000
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F. SolutionsOHSplit Lock WasherSteelZinc/Yellowlock washer 1-1/2 thru-hardened yellow zinc101
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F. SolutionsOHSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4lock 1/4 18.8 ss domestic 70
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F. SolutionsOHSplit Lock WasherSilicon BronzePlain3/4lock 3/4 silicon bronze 82
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IRFNCSplit Lock WasherSteelZinc/Clear9/16split lock stl200
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ArdenWISplit Lock WasherSteelZinc/Clear#3#3 split lock washer med zcinquire
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ArdenWISplit Lock WasherSteelZinc/ClearM4M4 split lw zc din 127binquire
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ArdenWISplit Lock WasherSteelZinc/YellowM12M12 split lw zy din 127binquire
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ArdenWISplit Lock WasherSteelZinc/Yellow1/21/2 split lock washer med zyinquire
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ArdenWISplit Lock WasherSteelZinc/Yellow5/85/8 split lock washer med h/a zyinquire
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ArdenWISplit Lock WasherSilicon BronzePlain3/83/8 split lock washer bronzeinquire
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ArdenWISplit Lock WasherSteelZinc/Yellow9/169/16 split lock washer med h/a zyinquire
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ArdenWISplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM2M2 split l/w a2ss din 127binquire
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FDLILSplit Lock WasherSteelZinc/Clear5/165/16 regular (medium) split lock washer zinc and bake 4,500pcs/ctn 8kgs/ctn b18.21.1 b27.14400
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FDLILSplit Lock WasherSteelZinc/Clear5/85/8 split lock washer steel zinc per drawing#100-1415 rev. 001 2000pcs/ctn &22kgs/ctn b18.21.1 b27.16000
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ASFCORPMISplit Lock WasherSteelPlainM12m12 lk wshr din 127 form b12,000
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ASFCORPMISplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain9/169/16 reg lk wshr ss pkg90
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ASFCORPMISplit Lock WasherSteelZinc/ClearM5m5 lk wshr din 127 form b tri zn dich fe/zn 5cn1,500
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BAYFASTCOFLSplit Lock WasherSteelGalvanized7/8dom.. split lock hot600
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THRDFASTOKSplit Lock WasherSteelFluoropolymer-Based (Xylan, Fluorokote, Teflon)1 1/4split lock xylan 1424 blue b18.21.1 b27.14
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THRDFASTFLSplit Lock WasherSteelZinc/Clear1 1/4split lock b18.21.1 b27.165
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LightningLASplit Lock Washer316, 317, A4 StainlessPlain3/4split lock 316 ss1079
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LightningLASplit Lock Washer316, 317, A4 StainlessPlain9/16split lock 316 ss575
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LightningLASplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4split lock 18-8 ss26889
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