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1/4 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.

181,167 Machine Screw, showing 200, (click on any line for more information)

Search Results Sponsored by ISSCO, Inc., your source for Machine Screws. For more results, visit   isscoinc.com
SupplierLocTypeMaterialFinishSizeDescriptionQty 
ISSCOMOMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-28 x 1slotted truss 18-8715
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ISSCOMOMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-28 x 1 1/4phillips pan 18-8940
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ISSCOMOMachine ScrewSteelZinc/Clear1/4-28 x 2slotted flat8200
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ISSCOMOMachine ScrewSteelZinc/Clear1/4-28 x 1/2slotted flat8800
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MESAFASTCAMachine ScrewSteelZinc/Clear1/4-20 x 2 1/41/4-20 x 2-1/4 phil truss machine screw steel zinc steel zinc1,330.0
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Cal FastenrsCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 3/4phil flat m/s 18-8 304100
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Cal FastenrsCAMachine ScrewSteelZinc/Clear1/4-20 x 1/21/4-20x1/2 phil flat m/s trivalent zinc phillips flat ms phillips flat ms2,000
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Cal FastenrsCAMachine ScrewSteelZinc/Clear1/4-20 x 41/4-20 x 4 slotted round m/s trivalent zinc sltd rd m/s500
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Cal FastenrsCAMachine ScrewSteelZinc/Black1/4-20 x 3/4phil pan m/s black1,500
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Cal FastenrsCAMachine ScrewSteelZinc/Clear1/4-20 x 11/4-20 x 1 phil pan m/s Cr3+ phil pan m/s1,500
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Irwin IndOntMachine ScrewPlasticPlain1/4 x 1/8micro 13sp033 nylon spacer b18.6.34000
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Irwin IndOntMachine ScrewSteelZinc/Clear1/4-20 x 3/41/4-20 x 3/4 phil flat m/s zinc 3m scotch grip b18.6.34000
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Irwin IndOntMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 1/21/4-20 x 1/2 flat hd u/c phil m/s in s/s with nylon patch b18.6.31854
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Irwin IndOntMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 3/81/4-20 x 3/8 pan phil m/s stainless steel b18.6.33945
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Irwin IndOntMachine Screw316, 317, A4 StainlessPlain1/4-20 x 11/4-20 x 1 pan phil m/screw 316 st/st b18.6.31000
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Irwin IndOntMachine ScrewSteelPlain1/4-20 x 5/81/4-20 x 5/8 pan phillip ms + sg 2353 b18.6.37700
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Irwin IndOntMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)ASTM F1941-10 Fe/Zn-Ni1/4-20 x 1/21/4-20 x 1/2 hex unslotted washer head machine screw zinc nickel with black chromate 300 hour ss b18.6.3238150
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Irwin IndOntMachine ScrewSteelZinc/Clear1/4-20 x 11/4-20 x 1 round phillips m/sc zinc trivalent clear b18.6.31500
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Irwin IndOntMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 3/41/4-20 x 3/4 truss phil m/s stainless steel b18.6.35000
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ASMCILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 2 1/41/4-20x2 1/4 (ft) coarse machine screw phil pan hd ss18-8 b18.6.313
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ASMCILMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 11/4-20x1 coarse machine screw phil flat hd ss18-8 blox b18.6.3200
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ManscoMIMachine ScrewSteelZinc/Black1/4-20 x 3/4 1/41/4-20 x 3/4 pan phillips m/s blk znc w/dog pt 1/483190
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ManscoMIMachine ScrewSteelZinc/Clear1/4-20 x 20.1661/4-20 x 20.166 indented hex washer unslotted m/s triv znc w/.550 thread length7052
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ManscoMIMachine ScrewSteelZinc/Clear1/4-20 x 11/4-20 x 1 pan 6-lobe m/s znc w/nyl patch30805
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ManscoMIMachine ScrewSteelZinc/Clear1/4-20 x 1 1/41/4-20 x 1-1/4 indented hex slotted m/s triv znc 7/16 a/f w/1/2 thread6550
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ManscoMIMachine ScrewSteelBlack Oxide1/4-20 x 3 1/21/4-20 x 3-1/2 indented hex washer phillips m/s blk ox w/1/2 thread length17320
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ManscoMIMachine ScrewSteelZinc/Black1/4-20 x 5/81/4-20 x 5/8 pan 6-lobe m/s blk znc w/nyl patch48612
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ManscoMIMachine ScrewSteelZinc/Clear1/4-20 x 5/81/4-20 x 5/8 truss phillips/slotted m/s triv znc grooved54335
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ManscoMIMachine ScrewSteelZinc/Black1/4-20 x 3/41/4-20 x 3/4 flat phillips m/s triv blk znc rc25-355500
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ManscoMIMachine ScrewSteelZinc/Clear1/4-20 x 11/4-20 x 1 pan phillips m/s znc nickel42351
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ManscoMIMachine ScrewSteelZinc/Black1/4-20 x 7/81/4-20 x 7/8 flat no drive m/s blk znc w/lock nibs11715
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ManscoMIMachine ScrewSteelZinc/Yellow1/4-20 x 3/41/4-20 x 3/4 round phillips m/s triv znc w/yellow nylon patch28410
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ManscoMIMachine ScrewSteelZinc/Clear1/4-20 x 7/81/4-20 x 7/8 truss phillips m/s triv znc w/ 3/4 nylon patch stress releived19979
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ManscoMIMachine ScrewSteelPlain1/4-20 x 12 1/21/4-20 x 12-1/2 pan slotted m/s pln w/4 thread length 100/box350
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ManscoMIMachine ScrewSteelPlain1/4-20 x 111/4-20 x 11 pan slotted m/s pln w/4 thread 100/box550
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ManscoMIMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide1/4-20 x 1 1/21/4-20 x 1-1/2 round phillips m/s 18-8 s.s. blk ox5707
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ManscoMIMachine ScrewSteelZinc/Black1/4-20 x 11/4-20 x 1 truss phillips m/s hexavalent blk znc5725
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ManscoMIMachine ScrewSteelZinc/Black1/4-20 x 1/21/4-20 x 1/2 truss slotted m/s triv blk znc15004
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ManscoMIMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 1/21/4-20 x 1/2 pan phillips/slotted m/s 18-8 s.s.8800
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ManscoMIMachine ScrewSteelZinc/Clear1/4-20 x 1/21/4-20 x 1/2 truss slotted m/s triv znc w/white painted hds3600
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ManscoMIMachine ScrewSteelZinc/Black1/4-20 x 1 5/161/4-20 x 1 flat phillips m/s blk znc w/5/16 thread length1992
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General FMIMachine ScrewSteelZinc/Clear1/4-20 x 0.6251/4-20 x 0.625 flt phil ms triv b18.6.31209400
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SWACOOHMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 1/21/4-20x1/2 phil pan m/s 18-8ss226
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SWACOOHMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 1 1/21/4-20x1-1/2 phil truss m/s 18-8ss1000
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SWACOOHMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 1 1/21/4-20x1-1/2 slotted round ms 18-8ss303
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SWACOOHMachine ScrewSteelZinc/Clear1/41/4 ms f/w ztl zinc clear5498
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SWACOOHMachine ScrewSteelZinc/Clear1/4-20 x 1 1/41/4-20x1 1/4 phil flat 100 deg stl zn800
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SWACOOHMachine ScrewSteelZinc/Black1/4-20 x 1 1/41/4-20x1-1/4 phillips truss ms stl black zinc700
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SWACOOHMachine ScrewSteelZinc/Clear1/4-20 x 1/21/4-20x1/2 phillips truss ms st zi658
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SWACOOHMachine ScrewSteelBlack Oxide1/4-20 x 5/81/4-20x5/8 phillips pn ms stl black ox2600
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SWACOOHMachine ScrewSteelZinc/Clear1/4-20 x 11/4-20x1 phillips pn ms stl zinc11897
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SWACOOHMachine ScrewSteelZinc/Clear1/4-20 x 1/21/4-20x1/2 combo truss ms zi2200
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SWACOOHMachine ScrewSteelZinc/Clear1/4-20 x 1 1/21/4-20x1 1/2 phillips flat ms stl zi225
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SWACOOHMachine ScrewSteelBlack Oxide1/4-20 x 3/41/4-20x3/4 phillips truss ms stl blk ox17941
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SWACOOHMachine ScrewSteelZinc/Clear1/4-20 x 21/4-20x2 slotted round ms stl zinc1131
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SWACOOHMachine ScrewSteelZinc/Clear1/4-20 x 1 1/41/4-20x1-1/4 slotted truss ms zi75
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SWACOOHMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 1/21/4-20x1/2 phillips flat ms 18-81577
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SWACOOHMachine ScrewSteelZinc/Clear1/4-20 x 1/21/4-20x1/2 phillips pn ms stl zi7677
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SWACOOHMachine ScrewSteelZinc/Clear1/4-20 x 1/21/4-20x1/2 slotted round ms stl zi4550
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SWACOOHMachine ScrewSteelZinc/Clear1/4-20 x 3/41/4-20x3/4 phillips pn ms stl zinc3023
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SWACOOHMachine ScrewSteelZinc/Clear1/4-20 x 1 1/41/4-20x1-1/4 phillips pn ms st zinc1537
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SWACOOHMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 11/4-20x1 phillips pn ms 18-8 s/s1275
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MESAFASTCAMachine ScrewSteelBlack Oxide1/4-20 x 2phil flat500.0
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SWACOOHMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 21/4-20x2 phillips pn ms 18-8875
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Cal FastenrsCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 1/2phil flat m/s 18-8 304200
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MidStatesMIMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 1TRUSS HEAD T-27 6-LOBE TORX WAXED590000
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MidStatesMIMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 1 1/2TRUSS HEAD T-27 6-LOBE TORX WAXED98000
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MidStatesMIMachine ScrewSteelZinc/Clear1/4-20 x 3indented hex washer unslotted m/s znc1000
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MidStatesMIMachine ScrewSteelPlain1/4-20 x 3/8slotted round m/s nyl926
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MidStatesMIMachine ScrewSteelPlain1/4-20 x 1/2phil pan871
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MidStatesMIMachine ScrewSteelZinc/Clear1/4-20 x 3phil oval m/s znc476
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MidStatesMIMachine ScrewSteelPlain1/4-20 x 5/16slotted round m/s427
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MidStatesMIMachine Screw316, 317, A4 StainlessPlain1/4-20 x 1 1/4slotted fill m/s 316 s/s307
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MidStatesMIMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 2 3/4slotted flat m/s 18-8200
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MidStatesMIMachine ScrewBrassPlain1/4-20 x 1 1/2slotted pan m/s brs147
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MidStatesMIMachine ScrewSteelZinc/Clear1/4-28 x 1 3/4slotted round m/s znc125
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MidStatesMIMachine ScrewSteelZinc/Clear1/4-20 x 2 3/4phil flat m/s znc1
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WDMBIAMachine ScrewSteelNickel1/4-20 x 1scr ms fil st (ni) slotted 1/4-20x1 (W020) (W020) (W020)2,116
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WDMBIAMachine ScrewSteelPlain1/4-20 x 5/8scr ms pn st (rie) phillips pat 1/4-20x5/8 spc (W020) (W020) (W020)24,453
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WDMBIAMachine ScrewGrade 5Phosphate1/4-20 x 9 1/8scr ms hexwhd gr5 (po) 1/4-20x9 1/8 drw (W0J0)4459
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GUIDONTXMachine ScrewSteelBlack Oxide1/4-20 x 1 1/4phillips truss with serrations and nylon patch496,000
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General FMIMachine ScrewSteelZinc/Clear1/4-20 x 1 1/41/4-20 x 1.25 hwh slt ms shaved zn b18.6.315300
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General FMIMachine ScrewSteelZinc/Clear1/4-20 x 0 1/21/4-20 x 0.5 hwh ms serr triv b18.6.332825
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General FMIMachine ScrewSteelPlain1/4-20 x 0.8751/4-20 x 0.875 flt slt ms b18.6.3300
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OSSCORIMachine ScrewSteelZinc/Clear1/4-20 x 3/41/4-20x3/4 phil oval m/s zinc b18.6.350
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OSSCORIMachine ScrewSilicon BronzePlain1/4-20 x 11/4-20x1 slotted flat m/s sili brze b18.6.36
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OSSCORIMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 11/4-20x1 slotted flat m/s 18-8 304 b18.6.3139
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OSSCORIMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 11/4-20x1 slotted round m/s 18-8 304 b18.6.3180
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OSSCORIMachine ScrewSteelZinc/Clear1/4-20 x 11/4-20x1 slotted hex washer m/s plated b18.6.3490
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OSSCORIMachine ScrewSteelZinc/Clear1/4-20 x 11/4-20x1 slotted truss m/s plated b18.6.3141
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OSSCORIMachine ScrewSteelZinc/Clear1/4-20 x 11/4-20x1 slotted hex washer m/s-type-f-plated b18.6.31,059
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OSSCORIMachine ScrewSteelZinc/Clear1/4-20 x 1 1/81/4-20x1 1/8 phil pan m/s plated b18.6.31,158
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OSSCORIMachine ScrewSteelZinc/Clear1/4-20 x 1 1/41/4-20x1 1/4 slotted flat m/s plated b18.6.31,117
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OSSCORIMachine ScrewNylon (Polyamide)Plain1/4-20 x 1 1/41/4-20x1 1/4 slotted round m/s nylon b18.6.344
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OSSCORIMachine ScrewSteelZinc/Clear1/4-20 x 1 1/41/4-20x1 1/4 slotted truss m/s plated b18.6.3695
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OSSCORIMachine ScrewSteelZinc/Clear1/4-20 x 1 1/41/4-20x1 1/4 slotted round m/s plated b18.6.3855
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OSSCORIMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 1 1/21/4-20x1 1/2 square pan machine screw 18-8 304 b18.6.327
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OSSCORIMachine ScrewSilicon BronzePlain1/4-20 x 1 1/21/4-20x1 1/2 slotted flat m/s sili brze b18.6.311
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OSSCORIMachine ScrewSteelZinc/Clear1/4-20 x 1 1/21/4-20x1 1/2 slotted flat m/s plated b18.6.3606
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OSSCORIMachine ScrewBrassPlain1/4-20 x 1 1/21/4-20x1 1/2 slotted pan m/s brass b18.6.3200
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OSSCORIMachine ScrewSteelBlack Oxide1/4-20 x 1 1/21/4-20x1 1/2 phil flat m/s black ox b18.6.32,392
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OSSCORIMachine ScrewSteelZinc/Clear1/4-20 x 1 3/41/4-20x1 3/4 slotted flat m/s plated b18.6.3562
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OSSCORIMachine ScrewSteelBlack Oxide1/4-20 x 1 3/41/4-20x1 3/4 phil flat m/s black ox b18.6.31,292
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OSSCORIMachine ScrewSteelZinc/Clear1/4-20 x 1 3/41/4-20x1 3/4 phil round m/s plated b18.6.34
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Ace Bolt MSMachine ScrewSteelBlack Oxide1/4-20 x 5/81/4-20 x 5/8 unslotted hex washer m/s-black oxide- b18.6.362800
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OptimasILMachine ScrewSteelPlain1/4-28 x 1/21/4-28 x 1/2 phil pan machine303
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