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1/2 Machine Screws

Machine Screws are uniformly threaded screws which are designed to be screwed into pre-drilled, pre-threaded holes, or in conjunction with a nut, usually with a diameter less than 1/4inch. Larger diameter machine screws with a hex head are usually referred to as machine bolts.

191,193 Machine Screw, showing 200, (click on any line for more information)

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Search Results Sponsored by ISSCO, Inc., your source for Machine Screws. For more results, visit   isscoinc.com
SupplierLocTypeMaterialFinishSizeDescriptionQty 
ISSCOMOMachine ScrewSteelZinc/Clear1/2-13 x 3 1/2slotted flat200
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ISSCOMOMachine ScrewSteelCadmium1/2-20 x 7/8phillips flat5550
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ISSCOMOMachine ScrewSteelCadmium1/2-20 x 7/8phillips flat patchlok2650
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ISSCOMOMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 4 1/2slotted flat 18-8 stainless880
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MAINSOURCNHMachine ScrewSteelPlain1/2-13 x 3/4slotted flat m/s stl z/clr638
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HayesCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 91/2-13 x 9 slotted flat m/s 18-8ss6
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HayesCAMachine ScrewSteelZinc/Clear1/2-13 x 11/2-13 x 1 phil flat m/s zinc180
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HayesCAMachine ScrewNylon (Polyamide)Plain1/2-20 x 11/2-20 x 1 slotted flat 100 deg. nylon3
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HayesCAMachine ScrewBrassPlain1/2-13 x 11/2-13 x 1 slotted flat m/s brass60
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HayesCAMachine ScrewBrassPlain1/2-13 x 1 3/41/2-13 x 1 3/4 slotted flat m/s brass18
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HayesCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 1 3/41/2-13 x 1 3/4 slotted round m/s 18-8ss56
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HayesCAMachine Screw316, 317, A4 StainlessPlain1/2-13 x 1 1/21/2-13 x 1 1/2 slotted flat m/s 316ss4
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HayesCAMachine ScrewSteelPlain1/2-13 x 31/2-13 x 3 slotted round m/s pln20
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HayesCAMachine ScrewNi-Cu Alloy (Monel, K-Monel, etc.)Plain1/2-13 x 1 1/41/2-13 x 1 1/4 slotted flat m/s monel3
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BHAMALMachine ScrewSteelZinc/Clear1/2-13 x 61/2-13x6 slotted round m/s zn b18.6.390
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BHAMALMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 1 1/21/2-13x1 1/2 slotted flat m/s 300 ser ss b18.6.313
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KomarTNMachine ScrewSteelZinc/Clear1/2-13 x 1 3/4slotted flat
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HayesCAMachine ScrewSteelGalvanized1/2-13 x 21/2-13 x 2 slotted flat m/s hdg19
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ASMCILMachine ScrewSteelZinc/Clear1/2-13 x 2(ft) coarse slotted flat low carb zp150
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LibertyILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 3/4slotted flat m/s 18-81
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LibertyILMachine ScrewSteelZinc/Clear1/2-13 x 2 1/2slotted flat w zinc160
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LibertyILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 1 1/2slotted flat m/s 18-813
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LibertyILMachine ScrewSteelZinc/Clear1/2-13 x 1 1/4slotted flat w zinc14
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LibertyILMachine ScrewSteelPlain1/2-13 x 1slotted flat w307
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LibertyILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 2 1/2slotted flat m/s 18-814
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LibertyILMachine ScrewSteelZinc/Clear1/2-13 x 2slotted flat w zinc667
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LibertyILMachine ScrewSteelZinc/Clear1/2-13 x 3slotted flat w zinc222
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LibertyILMachine ScrewSteelPlain1/2-13 x 2slotted flat special w special690
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LibertyILMachine ScrewSteelPlain1/2-13 x 2 1/4flat m/s450
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LibertyILMachine ScrewSteelZinc/Clear1/2-13 x 2 3/4slotted flat w zinc66
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LibertyILMachine ScrewSteelPlain1/2-20 x 1 1/2slotted oval w100
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LibertyILMachine ScrewSteelZinc/Clear1/2-13 x 2slotted round w95
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LibertyILMachine ScrewSteelZinc/Clear1/2-13 x 6slotted round w zinc75
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LibertyILMachine ScrewSteelPlain1/2-13 x 2 1/4slotted round w1,050
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LibertyILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 3/4slotted round m/s 18-8270
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LibertyILMachine ScrewSteelZinc/Clear1/2-13 x 2 1/2slotted round w zinc50
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KomarILMachine ScrewSteelPlain1/2-13 x 2 1/41/2-13x2 1/4 slotted flat machine screw500
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Alma BoltMIMachine ScrewSteelPlain1/2-13 x 1flat slotted1414
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Alma BoltMIMachine ScrewSteelPlain1/2-13 x 1thumb m/sw pattern300
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Alma BoltMIMachine ScrewSteelPlain1/2-13 x 1 1/4flat slotted400
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Alma BoltMIMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 1 1/4st. st. flat slotted320
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Alma BoltMIMachine ScrewSteelPlain1/2-13 x 1 1/2flat slotted790
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Alma BoltMIMachine ScrewSteelPlain1/2-13 x 1 3/4flat slotted830
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Alma BoltMIMachine ScrewSteelPlain1/2-13 x 2flat slotted350
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Alma BoltMIMachine ScrewSteelPlain1/2-13 x 3flat slotted968
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Alma BoltMIMachine ScrewSteelPlain1/2-13 x 3 1/2flat slotted300
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Alma BoltMIMachine ScrewSteelPlain1/2-13 x 4round slotted341
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Alma BoltMIMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 3st. st. flat slotted246
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XL ScrewGAMachine ScrewSteelZinc/Clear1/2-13 x 6slotted round ms & clear chromate100
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XL ScrewGAMachine ScrewSteelZinc/Clear1/2-13 x 2slotted flat ms & clear chromate400
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XL ScrewGAMachine ScrewSteelZinc/Clear1/2-13 x 3slotted flat ms & clear chromate250
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XL ScrewGAMachine ScrewSteelZinc/Clear1/2-13 x 1 1/4slotted flat ms & clear chromate600
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XL ScrewGAMachine ScrewSteelZinc/Clear1/2-13 x 1slotted flat ms & clear chromate700
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XL ScrewGAMachine ScrewSteelZinc/Clear1/2-13 x 2 1/2slotted flat ms & clear chromate300
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XL ScrewGAMachine ScrewSteelZinc/Clear1/2-13 x 3 1/2slotted flat ms & clear chromate200
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XL ScrewGAMachine ScrewSteelZinc/Clear1/2-13 x 4slotted flat ms & clear chromate180
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XL ScrewGAMachine ScrewSteelZinc/Clear1/2-13 x 1 1/2slotted flat ms & clear chromate500
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XL ScrewGAMachine ScrewSteelZinc/Clear1/2-13 x 5slotted flat ms & clear chromate150
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XL ScrewGAMachine ScrewSteelZinc/Clear1/2-13 x 4 1/2slotted flat ms & clear chromate150
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XL ScrewGAMachine ScrewSteelZinc/Clear1/2-13 x 6slotted flat ms & clear chromate120
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MidStatesMIMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 1 3/41/2-13 x 1 3/4 slotted flat m/s 18-82
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IPCVAMachine ScrewSteelZinc/Clear1/2-13 x 11/2-13x1 f.h. slotted. m/s steel cr3 zinc-rohs758
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IPCVAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 1 1/21/2-13x1 1/2 f.h. slotted. m/s 18-8 ss235
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IPCVAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 31/2-13x3 f.h. slotted. m/s 18-8 ss255
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NorthernMNMachine ScrewSteelZinc/Clear1/2-13 x 3/4m/s flat slotted pk zc304
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NorthernMNMachine ScrewSteelZinc/Clear1/2-13 x 3m/s flat slotted pk zc64
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NorthernMNMachine ScrewSteelZinc/Clear1/2-13 x 1 1/4m/s round slotted pk zc29
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NorthernMNMachine ScrewSteelZinc/Clear1/2-13 x 3m/s round slotted311
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NorthernMNMachine ScrewSteelZinc/Clear1/2-13 x 6m/s round slotted825
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NorthernMNMachine ScrewSteelPlain1/2-13 x 3m/s flat slotted stain8
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HBBOLTCAMachine ScrewSteelZinc/Clear1/2-13 x 6flat slotted mach4
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HBBOLTCAMachine ScrewSteelZinc/Clear1/2-13 x 1 3/4flat mach scws185
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HBBOLTCAMachine ScrewSteelZinc/Clear1/2-13 x 2 1/2flat mach scws370
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HBBOLTCAMachine ScrewSteelZinc/Clear1/2-13 x 1 1/4flat mach scws30
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HBBOLTCAMachine ScrewSteelZinc/Clear1/2-13 x 1flat slotted75
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HBBOLTCAMachine ScrewSteelZinc/Clear1/2-13 x 1 1/2flat mach scws84
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HBBOLTCAMachine ScrewBrassPlain1/2-13 x 2flat19
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HBBOLTCAMachine ScrewBrassPlain1/2-13 x 1 1/2flat14
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HBBOLTCAMachine ScrewBrassPlain1/2-13 x 3/4flat slotted8
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HBBOLTCAMachine ScrewBrassPlain1/2-13 x 3flat25
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HBBOLTCAMachine ScrewBrassPlain1/2-13 x 2round6
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HBBOLTCAMachine ScrewSteelZinc/Clear1/2-13 x 1 1/2round500
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HBBOLTCAMachine ScrewSteelZinc/Clear1/2-13 x 1round246
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HBBOLTCAMachine ScrewSteelZinc/Clear1/2-13 x 2round mach80
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HBBOLTCAMachine ScrewSteelZinc/Clear1/2-13 x 1 1/4slotted round zp300
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HBBOLTCAMachine ScrewSteelZinc/Clear1/2-13 x 2 1/2round mach scws8
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HBBOLTCAMachine ScrewSteelZinc/Clear1/2-13 x 6round mach76
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HBBOLTCAMachine ScrewSteelZinc/Clear1/2-13 x 3round mach55
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HBBOLTCAMachine ScrewSteelZinc/Clear1/2-13 x 5round mach13
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Kanebridge ILMachine ScrewGrade 5Cadmium/Yellow1/2-20 x 1 1/21/2-20x1 1/2 military hex head cap screw fine thread cadmium yellow grade 5 dfar ms90726-1138.750
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 11/2-13x1 slotted flat machine screw fully threaded 18-8 stainless steel2.500
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 1 1/21/2-13x1 1/2 slotted flat machine screw fully threaded 18-8 stainless steel2.500
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 2 1/41/2-13x2 1/4 slotted flat machine screw fully threaded 18-8 stainless steel2.500
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 1 3/41/2-13x1 3/4 slotted flat machine screw fully threaded 18-8 stainless steel2.500
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 1 1/41/2-13x1 1/4 slotted flat machine screw fully threaded 18-8 stainless steel2.500
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 51/2-13x5 slotted flat machine screw fully threaded 18-8 stainless steel1.250
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 4 1/21/2-13x4 1/2 slotted flat machine screw fully threaded 18-8 stainless steel1.250
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 2 3/41/2-13x2 3/4 slotted flat machine screw fully threaded 18-8 stainless steel2.500
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 41/2-13x4 slotted flat machine screw fully threaded 18-8 stainless steel1.250
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 3 1/21/2-13x3 1/2 slotted flat machine screw fully threaded 18-8 stainless steel2.500
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 31/2-13x3 slotted flat machine screw fully threaded 18-8 stainless steel2.500
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 61/2-13x6 slotted flat machine screw fully threaded 18-8 stainless steel1.250
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 5 1/21/2-13x5 1/2 slotted flat machine screw fully threaded 18-8 stainless steel1.250
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 3/41/2-13x3/4 slotted round machine screw fully threaded 18-8 stainless steel2.500
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 21/2-13x2 slotted round machine screw fully threaded 18-8 stainless steel2.500
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 11/2-13x1 slotted round machine screw fully threaded 18-8 stainless steel2.500
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 1 1/21/2-13x1 1/2 slotted round machine screw fully threaded 18-8 stainless steel2.500
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 1 1/41/2-13x1 1/4 slotted round machine screw fully threaded 18-8 stainless steel2.500
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Kanebridge ILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 2 1/41/2-13x2 1/4 slotted round machine screw fully threaded 18-8 stainless steel2.500
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GUIDONNJMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 3 1/21/2-13 x 3 1/2 slotted flat machine screw8500
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QFCTXMachine ScrewSteelZinc/Clear1/2 x 61/2x6 round slotted m/s zinc b18.6.3240
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LibertyILMachine ScrewSteelZinc/Clear1/2-13 x 3/4slotted round120
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ZAL INDUSCAMachine ScrewSteelZinc/Clear1/2-13 x 2 1/21/2-13 x 2 1/2 slotted flat m/s pltd19,755
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ZAL INDUSCAMachine ScrewSteelPlain1/2-13 x 31/2-13 x 3 slotted flat m/s3,000
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ZAL INDUSCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 31/2-13 x 3 slotted flat m/s stainless26
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ZAL INDUSCAMachine ScrewSteelZinc/Clear1/2-13 x 41/2-13 x 4 slotted flat m/s pltd30
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ZAL INDUSCAMachine ScrewSteelZinc/Clear1/2-13 x 51/2-13 x 5 slotted round m/s pltd74
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ZAL INDUSCAMachine ScrewSteelZinc/Clear1/2-13 x 21/2-13 x 2 slotted flat m/s pltd190
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ZAL INDUSCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 1 1/21/2-13 x 1 1/2 slotted round m/s stainless70
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ZAL INDUSCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 21/2-13 x 2 slotted pan m/s 18-8stn.26
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ASFCORPMIMachine ScrewSteelZinc/Clear1/2-13 x 11/2-13 x 1 slotted flt hd mach scw tri zn fe/zn 5an pkg50
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MMFMIMachine ScrewSteelCadmium/Yellow1/2-13 x 1 1/41/2-13 x 1-1/4 phil flat stl/cad machine screw w patch usa ms35190-343l b18.6.3110
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ACCURATEILMachine ScrewSteelZinc/Clear1/2-13 x 3/4flat slotted50,000
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ACCURATEILMachine ScrewBrassPlain1/2-13 x 1flat slotted10,000
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ACCURATEILMachine ScrewSteelPlain1/2-13 x 2 1/4fillister slotted100
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ACCURATEILMachine ScrewSteelZinc/Clear1/2-20 x 2 1/4flat slotted500
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ACCURATEILMachine ScrewSteelZinc/Clear1/2-13 x 3round slotted1,000
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ACCURATEILMachine ScrewBrassPlain1/2-13 x 1 1/2flat slotted10,000
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ACCURATEILMachine ScrewSteelZinc/Clear1/2-13 x 6round slotted100
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ACCURATEILMachine ScrewSilicon BronzePlain1/2-13 x 1 1/4flat slotted silbrz100
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ACCURATEILMachine ScrewSteelZinc/Clear1/2-13 x 2 1/2fillister slotted175
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ACCURATEILMachine ScrewSteelPlain1/2-13 x 2 3/4fillister slotted50
ACCURATEILMachine ScrewBrassPlain1/2-13 x 1 1/4flat slotted6,000
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ACCURATEILMachine ScrewSteelZinc/Clear1/2-13 x 4round slotted100
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ACCURATEILMachine ScrewSteelPlain1/2-13 x 3flat slotted500
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ACCURATEILMachine ScrewSteelZinc/Clear1/2-13 x 2 1/2round slotted800
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ACCURATEILMachine ScrewSteelZinc/Clear1/2-13 x 7/8flat slotted600
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SeattleNBWAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 1 1/2phil flat ms 18-8 ss1640
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SeattleNBWAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 4phil flat ms 18-8 ss520
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SeattleNBWAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 3phil flat ms 18-8 ss825
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SeattleNBWAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 2phil flat ms 18-8 ss1190
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SeattleNBWAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 2 1/2phil flat ms 18-8 ss930
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