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3/8 Split Lock Washers (b27.1)

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.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
Irwin IndOntSplit Lock WasherSteelZinc/Black3/83/8 medium lockwashers steel .0002 min zinc trivalent black b18.21.1 b27.110193
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Irwin IndOntSplit Lock WasherSteelZinc/Clear3/83/8 medium lockwashers zinc trivalent b18.21.1 b27.11000
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Irwin IndOntSplit Lock Washer316, 317, A4 StainlessPlain3/83/8 medium lockwashers 316 stainless steel b18.21.1 b27.1400
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Irwin IndOntSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 medium lockwashers stainless steel b18.21.1 b27.1 14900
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GLFOHSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 lock 18-8 s/s b18.21.1 b27.1 () () ()7525
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GLFOHSplit Lock WasherSteelPlain3/83/8 lock stl pln b18.21.1 b27.1 () () ()5374
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GLFOHSplit Lock WasherGrade 8Zinc/Yellow3/83/8 lock gr 8 stl zy cr6 b18.21.1 b27.1 () () ()21340
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GLFOHSplit Lock WasherGrade 8Plain3/83/8 lock gr 8 stl pln b18.21.1 b27.1 () () ()7764
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GLFOHSplit Lock WasherSilicon BronzePlain3/83/8 lock sil brz b18.21.1 b27.1 () () ()42
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GLFOHSplit Lock WasherSteelGalvanized3/83/8 lock stl hdg b18.21.1 b27.1 () () ()18915
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GLFOHSplit Lock Washer316, 317, A4 StainlessPlain3/83/8 lock 316 s/s b18.21.1 b27.1 () () ()202
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GLFOHSplit Lock WasherSteelZinc/Yellow3/83/8 lock stl zy b18.21.1 b27.1 () () ()16438
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GLFOHSplit Lock WasherSteelZinc/Clear3/83/8 lock stl zc b18.21.1 b27.1 () () ()5557
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GLFOHSplit Lock WasherSteelFluoropolymer-Based (Xylan, Fluorokote, Teflon)3/83/8 lock stl teflon b18.21.1 b27.1 () () ()801
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GLFOHSplit Lock WasherSteelDip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)3/83/8 lock stl geomet b18.21.1 b27.1 () () ()7
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GLFOHSplit Lock WasherSteelCadmium3/83/8 lock stl cad yel b18.21.1 b27.1 () () ()4716
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GLFOHSplit Lock WasherGrade 8Zinc/Yellow3/83/8 lock gr 8 stl zy domestic b18.21.1 b27.1 () () ()294
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GLFOHSplit Lock WasherGrade 8Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)3/83/8 lock gr 8 stl magni b18.21.1 b27.1 () () ()27657
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GLFOHSplit Lock WasherGrade 8Zinc/Yellow3/83/8 lock gr 8 stl zy cr3 b18.21.1 b27.1 () () ()4083
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GLFOHSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 ss/300 med/split lock 304ss MS35338-141 b18.21.1 b27.1 () () ()500
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GLFOHSplit Lock WasherSteelCadmium/Yellow3/83/8 steel med/split lock cad/yellow MS35338-46 b18.21.1 b27.1 () () ()1516
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GLFOHSplit Lock WasherSilicon BronzePlain3/83/8 lock stl bzn b18.21.1 b27.1 () () ()3936
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AbabaCASplit Lock Washer316, 317, A4 StainlessPlain3/83/8 med split l/w 316 s/s b18.21.1 b27.11100
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AbabaCASplit Lock WasherSteelPlain3/83/8 split lock washer al-2000 (black) hrd stl b18.21.1 b27.13262
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AbabaCASplit Lock WasherSteelGalvanized3/83/8 med split l/w hrd stl hdg b18.21.1 b27.16827
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AbabaCASplit Lock WasherSteelZinc/Black3/83/8 med split l/w waxed hrd stl blk znc b18.21.1 b27.11102
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AbabaCASplit Lock WasherSteelZinc/Clear3/83/8 med split l/w hrd stl znc b18.21.1 b27.116581
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AbabaCASplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 med split l/w s/s b18.21.1 b27.112500
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AbabaCASplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 med split l/w 25/pkg s/s b18.21.1 b27.110
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AbabaCASplit Lock WasherSteelZinc/Yellow3/83/8 med split l/w alloy yel znc b18.21.1 b27.12500
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AbabaCASplit Lock WasherSteelZinc/Yellow3/83/8 med split l/w 25/pkg alloy yel znc b18.21.1 b27.111
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AbabaCASplit Lock WasherSilicon BronzePlain3/83/8 med split l/w sili brz b18.21.1 b27.1111
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AbabaCASplit Lock WasherSteelGalvanized3/83/8 split lock washer domestic hrd stl hdg b18.21.1 b27.190
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AbabaCASplit Lock Washer316, 317, A4 StainlessPlain3/83/8 med split l/w 316 s/s b18.21.1 b27.1300
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AbabaCASplit Lock WasherSteelGalvanized3/83/8 med split l/w hrd stl hdg b18.21.1 b27.1700
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AbabaCASplit Lock WasherSteelZinc/Clear3/83/8 med split l/w hrd stl znc b18.21.1 b27.12900
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AbabaCASplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 med split l/w 25/pkg s/s b18.21.1 b27.15
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AbabaCASplit Lock WasherSteelZinc/Yellow3/83/8 med split l/w alloy yel znc b18.21.1 b27.1400
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AbabaCASplit Lock WasherSteelZinc/Yellow3/83/8 med split l/w 25/pkg alloy yel znc b18.21.1 b27.15
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Alma BoltMISplit Lock WasherSteelPlain3/83/8 plain finish lock washer (medium split) b18.21.1 b27.13019
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SIIINSplit Lock WasherSteelGalvanized3/83/8 regular split lock washers hdg b18.21.1 b27.1400
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SIIINSplit Lock WasherSteelZinc/Clear3/83/8 zinc lock washer) b18.21.1 b27.15504
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SIIINSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 18-8 stainless steel medium split lock washer) b18.21.1 b27.12991
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JET FITTINGCASplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8ms35338-141 3/8 split l/w s/s 304ss MS35338-141 b18.21.1 b27.1126
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JET FITTINGCASplit Lock WasherSteelZinc/Yellow3/83/8 split l/w alloy thru-hardened zy LWIA0371 b18.21.1 b27.19290
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JET FITTINGCASplit Lock WasherSteelZinc/Clear3/83/8 split l/w stl zinc DMLZP03750 b18.21.1 b27.146791
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JET FITTINGCASplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 split l/w 18-8 1-L-37 b18.21.1 b27.173969
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JET FITTINGCASplit Lock Washer316, 317, A4 StainlessPlain3/83/8 split lock wash a4 (316) 755048 b18.21.1 b27.1700
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StandardMASplit Lock WasherSilicon BronzePlain3/83/8 lock washer silicon bronze b18.21.1 b27.133871
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StandardMASplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 lock washer 18-8 stainless steel b18.21.1 b27.172800
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StandardMASplit Lock Washer316, 317, A4 StainlessPlain3/83/8 lock washer 316 stainless steel b18.21.1 b27.159900
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QFCTXSplit Lock WasherSteelZinc/Clear3/83/8 split lock zinc b18.21.1 b27.122000
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QFCTXSplit Lock WasherSteelZinc/Clear3/83/8 split lock zinc b18.21.1 b27.112266
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QFCTXSplit Lock WasherSteelPlain3/83/8 med split lock plain b18.21.1 b27.1700
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QFCTXSplit Lock WasherSteelZinc/Clear3/83/8 heavy split lock trivalent zinc b18.21.1 b27.11000
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QFCTXSplit Lock WasherSteelZinc/Clear3/83/8 heavy split lock trivalent zinc b18.21.1 b27.16534
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QFCTXSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Zinc/Clear3/83/8 light helical spring lock zinc (96 hrs sst for white rust) rohs b18.21.1 b27.171464
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QFCTXSplit Lock WasherSteelZinc/Clear3/83/8 split lock trivalent zinc b18.21.1 b27.13690
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QFCTXSplit Lock WasherSteelZinc/Clear3/83/8 split lock trivalent zinc b18.21.1 b27.14514
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QFCTXSplit Lock WasherSteelZinc/Clear3/83/8 regular helical spring lock zinc (96 hrs salt spray test for white rust) rohs b18.21.1 b27.1914966
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QFCTXSplit Lock WasherSteelGalvanized3/83/8 split lock hdg b18.21.1 b27.17149
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QFCTXSplit Lock WasherSteelGalvanized3/83/8 med split lock mech galv dom b18.21.1 b27.119
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QFCTXSplit Lock WasherSteelGalvanized3/83/8 med split lock mech galv dom b18.21.1 b27.141
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QFCTXSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 split lock regular a2 18-8 304 steel b18.21.1 b27.16563
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QFCTXSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 split lock regular a2 18-8 304 steel b18.21.1 b27.14745
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QFCTXSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 split lock regular a2 18-8 304 steel b18.21.1 b27.12850
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QFCTXSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 regular split lock 18-8 s/s domestic b18.21.1 b27.167
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QFCTXSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 regular split lock 18-8 s/s domestic b18.21.1 b27.126
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QFCTXSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 regular split lock 18-8 s/s domestic b18.21.1 b27.1666
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QFCTXSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 regular split lock 18-8 s/s domestic b18.21.1 b27.1700
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QFCTXSplit Lock WasherSteelGalvanized3/83/8 med split lock mech galv domestic b18.21.1 b27.12973
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B & K FASTPASplit Lock WasherSteelGalvanized3/83/8 lockwashers hd galv b18.21.1 b27.116307
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B & K FASTPASplit Lock WasherGrade 8Zinc/Yellow3/83/8 lockwashers gr 8 z yellow b18.21.1 b27.15074
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B & K FASTPASplit Lock WasherSteelPlain3/83/8 medium lockwashers plain b18.21.1 b27.11219
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B & K FASTPASplit Lock WasherSteelZinc/Clear3/83/8 medium lockwashers zinc b18.21.1 b27.17280
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B & K FASTPASplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 med lockwashers 18-8 stainless b18.21.1 b27.12309
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B & K FASTPASplit Lock Washer316, 317, A4 StainlessPlain3/83/8 medium lockwashers t 316 stainless b18.21.1 b27.1304
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BHAMGASplit Lock WasherSuperalloy (Inconel, Hastelloy, Alloy 20)Plain3/83/8 hastelloy c276 split lock s b18.21.1 b27.132
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General FMISplit Lock WasherSteelASTM F1941-10 Fe/Zn-Ni3/83/8 med lock for wss-m21p25-b1 b18.21.1 b27.112,709
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General FMISplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 lock ss b18.21.1 b27.1903
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General FMISplit Lock WasherSteelPlain3/83/8 med lock .0002 zidi b18.21.1 b27.127472
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BHAMALSplit Lock WasherSteelPlain3/83/8 split lock dom. b18.21.1 b27.18
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BHAMTXSplit Lock WasherSteelZinc/Yellow3/83/8 split lock yel zn b18.21.1 b27.141478
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OSSCORISplit Lock WasherSteelZinc/Clear3/83/8 heavy lock plated b18.21.1 b27.12,100
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OSSCORISplit Lock WasherAluminumPlain3/83/8 split lock alum b18.21.1 b27.191
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QFCTXSplit Lock WasherSteelZinc/Clear3/83/8 split lock washers-zinc (pkg. qty. 100 pcs.) b18.21.1 b27.11
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QFCTXSplit Lock WasherSteelZinc/Clear3/83/8 split lockwasher zinc b18.21.1 b27.11500
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QFCTXSplit Lock WasherSteelPlain3/83/8 med split lock washer plain b18.21.1 b27.122392
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QFCTXSplit Lock WasherSteelCopper Plated3/83/8 split lockwasher copper plate b18.21.1 b27.1392
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QFCTXSplit Lock WasherSteelGalvanized3/83/8 med split lockwasher hdg domestic b18.21.1 b27.12
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QFCTXSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 med split l/w 304 s/s domestic b18.21.1 b27.1390
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JET FITTINGCASplit Lock WasherSteelBlack Oxide3/8washer lock split 3/8 steel black oxide wax b18.21.1 b27.1600
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JET FITTINGCASplit Lock WasherSteelZinc/Yellow3/8washer lock split 3/8 steel cadmium plated yellow b18.21.1 b27.16300
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JET FITTINGCASplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 split lock washer stainless steel 18-8 b18.21.1 b27.12070
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JET FITTINGCASplit Lock WasherSteelZinc/Clear3/8washer lock split 3/8 steel zinc plated b18.21.1 b27.18140
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JET FITTINGCASplit Lock WasherSteelGalvanized3/83/8 washers lockwashers split lock washer regular hdg (inch) b18.21.1 b27.1400
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FDLILSplit Lock WasherSteelZinc/Clear3/83/8 regular (medium) split lock washer zinc and bake 3,000pcs/ctn 8kgs/ctn b18.21.1 b27.12900
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FDLILSplit Lock WasherSteelZinc/Clear3/83/8 regular (medium) split lock washer zinc and bake 3,000pcs/ctn 8kgs/ctn b18.21.1 b27.12900
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THRDFASTFLSplit Lock WasherAluminumPlain3/8alum split lock b18.21.1 b27.11,849
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THRDFASTFLSplit Lock Washer316, 317, A4 StainlessPlain3/8t-316 ss split lock domestic b18.21.1 b27.1120
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THRDFASTFLSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/818-8 ss split lock domestic b18.21.1 b27.134
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THRDFASTFLSplit Lock WasherGrade 8Plain3/8gr8 split lock b18.21.1 b27.126
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THRDFASTOKSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/818-8 ss split lock domestic b18.21.1 b27.16
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THRDFASTALSplit Lock WasherSteelCadmium3/8split lock b18.21.1 b27.185
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THRDFASTMSSplit Lock WasherSteelPlain3/8split lock b18.21.1 b27.1199
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KBSTNSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/83/8 split lock/w s/s b18.21.1 b27.17,544
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KBSTNSplit Lock WasherSteelZinc/Clear3/83/8 split lock/wshr plated b18.21.1 b27.130,660
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THRDFASTALSplit Lock WasherSteelPlain3/8split lock b18.21.1 b27.17500
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THRDFASTALSplit Lock WasherSteelGalvanized3/8split lock hdg domestic b18.21.1 b27.142
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THRDFASTOKSplit Lock WasherAluminumPlain3/8alum split lock b18.21.1 b27.153
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THRDFASTALSplit Lock WasherAluminumPlain3/8alum split lock b18.21.1 b27.113
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THRDFASTOKSplit Lock WasherSteelPlain3/8split lock domestic b18.21.1 b27.1392
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THRDFASTOKSplit Lock WasherSteelZinc/Yellow3/8split lock z&y domestic b18.21.1 b27.153
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WSBKYSplit Lock Washer300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8washer reg splt lw 18-8 (ni blk) 3/8 b18.21.1 b27.124,824
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FACCAOntSplit Lock WasherSteelZinc/Yellow3/8split lock washer 3/8 bolt size steel yellow zinc dichromate pltd b18.21.1 b27.11,380
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