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1 1/2 inch length Counterbore Screws

12-point Flange Screws, Counterbore Screws,  Ferry Head Cap Screws or Counterbore Screws, feature a 12 point head and a flanged bearing surface. Usually fully threaded, the 12-point design provides for higher tightening torque, without edge rounding and they are covered under ASME Standard B18.2.1

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Search Results Sponsored by Metric Threaded Products, Inc., your source for 12 Point Flange Screws. For more results, visit   www.metric-threaded.com
SupplierLocTypeMaterialFinishSizeDescriptionQty 
MTPCA12 Point Flange Screw (CounterBore)SteelPlain7/16-20 x 1 1/27/16-20 x 1 1/2 alloy 12 point flange bolts13,150
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MTPCA12 Point Flange Screw (CounterBore)SteelBlack Oxide1/2-20 x 1 1/21/2-20x1 1/2 alloy blk 12 pt flange screwsstock
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MTPCA12 Point Flange Screw (CounterBore)SteelBlack Oxide5/16-18 x 1 1/212 pt flange screw alloy420
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MTPCA12 Point Flange Screw (CounterBore)SteelBlack Oxide1/4-20 x 1 1/212 pt flange screw alloy560
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JacksonMS12 Point Flange Screw (CounterBore)SteelPlain1/4-28 x 1 1/2nf ferry c/s71
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JacksonMS12 Point Flange Screw (CounterBore)SteelPlain5/16-18 x 1 1/2nc ferry c/s7
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JacksonMS12 Point Flange Screw (CounterBore)SteelPlain5/16-24 x 1 1/2nf ferry c/s106
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JacksonMS12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 1 1/2nf ferry c/s86
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WeaverWA12 Point Flange Screw (CounterBore)Grade 8Plain3/8-16 x 1 1/23/8-16x1 1/2 gr8 12pt hd flange bolt plain200
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WeaverWA12 Point Flange Screw (CounterBore)Grade 8Plain3/8-24 x 1 1/23/8-24x1 1/2 gr8 12pt hd flange bolt plain50
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WeaverWA12 Point Flange Screw (CounterBore)Grade 8Plain7/16-14 x 1 1/27/16-14x1 1/2 gr8 12pt hd flange bolt plain100
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WeaverWA12 Point Flange Screw (CounterBore)Grade 8Plain1/2-13 x 1 1/21/2-13x1 1/2 gr8 12pt hd flange bolt plain200
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WeaverWA12 Point Flange Screw (CounterBore)Grade 8Plain1/2-20 x 1 1/21/2-20x1 1/2 gr8 12pt hd flange bolt plain25
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WeaverWA12 Point Flange Screw (CounterBore)Grade 8Plain5/8-18 x 1 1/25/8-18x1 1/2 gr8 12pt hd flange bolt plain25
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Future FastenerTX12 Point Flange Screw (CounterBore)SteelBlack Oxide5/8-11 x 1 1/25/8-11 x 1 1/2 12pt ferry cap screw blk3
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Future FastenerTX12 Point Flange Screw (CounterBore)SteelBlack Oxide3/4-10 x 1 1/23/4-10 x 1 1/2 ferry head cap screw blk16
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Future FastenerTX12 Point Flange Screw (CounterBore)SteelBlack Oxide3/8-16 x 1 1/23/8-16 x 1 1/2 ferry head cap screw blk14
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JacksonMS12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 1 1/2nc ferry c/s24
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JacksonMS12 Point Flange Screw (CounterBore)SteelPlain1/2-20 x 1 1/2nf ferry c/s15
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JacksonMS12 Point Flange Screw (CounterBore)SteelPlain5/8-11 x 1 1/2nc ferry c/s25
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JacksonMS12 Point Flange Screw (CounterBore)SteelPlain7/16-14 x 1 1/2nc ferry c/s70
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JacksonMS12 Point Flange Screw (CounterBore)SteelPlain7/16-20 x 1 1/2nf ferry c/s46
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JacksonMS12 Point Flange Screw (CounterBore)SteelPlain1/2-13 x 1 1/2nc ferry c/s11
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain1/4-28 x 1 1/21/4-28 x 1 1/2 12 point cap screw alloy b18.2.165
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 1 1/23/8-16 x 1 1/2 12 point cap screw alloy b18.2.1111
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 1 1/23/8-24 x 1 1/2 12 point cap screw alloy b18.2.172
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain7/16-20 x 1 1/27/16-20 x 1 1/2 12 point cap screw alloy b18.2.130
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain1/2-20 x 1 1/21/2-20 x 1 1/2 12 point cap screw alloy b18.2.142
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/4-16 x 1 1/23/4-16 x 1 1/2 12 point cap screw alloy b18.2.125
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain1/2-13 x 1 1/21/2-13 x 1 1/2 12 point cap screw alloy b18.2.1110
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain5/8-18 x 1 1/25/8-18 x 1 1/2 12 point cap screw alloy b18.2.120
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain5/16-18 x 1 1/25/16-18 x 1 1/2 12 point cap screw alloy b18.2.150
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WeaverWA12 Point Flange Screw (CounterBore)Grade 8Plain7/16-20 x 1 1/27/16-20x1 1/2 gr8 12pt hd flange bolt plain16
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CenturyFL12 Point Flange Screw (CounterBore)Grade 8Plain5/16-24 x 1 1/2screw cap 5/16-24x1 1/2 12pt grade 8 (5/16-24 X 1 1/2 12PT GRADE 8) (5/16-24 X 1 1/2 12PT GRADE 8) 1000
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HayesCA12 Point Flange Screw (CounterBore)SteelPlain7/16-14 x 1 1/27/16-14 x 1 1/2 12 pt. ctrbr screw alloy29
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HayesCA12 Point Flange Screw (CounterBore)SteelPlain1/4-28 x 1 1/21/4-28 x 1 1/2 12 pt. ctrbr screw alloy2
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BHAMAL12 Point Flange Screw (CounterBore)SteelPlain3/4-10 x 1 1/23/4-10x1-1/2 12 point counterbore bolt b18.2.1197
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain3/4-16 x 1 1/23/4-16x1 1/2 fine 12-point flange screw alloy pln b18.2.115
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain7/16-14 x 1 1/27/16-14x1 1/2 coarse 12-point flange screw alloy pln unc25
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain1/4-20 x 1 1/2coarse 12-point fl/b128
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain5/16-18 x 1 1/2coarse 12-point fl/b531
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 1 1/2coarse 12-point fl/b267
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 1 1/2fine 12-point fl/b14
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain5/8-11 x 1 1/2coarse 12-point fl/b110
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain1/2-13 x 1 1/2coarse 12-point fl/b46
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain7/16-20 x 1 1/2fine 12-point fl/b38
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain5/16-24 x 1 1/2fine 12-point fl/b b18.2.1825
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EndriesWI12 Point Flange Screw (CounterBore)SteelPlain1/2-13x1-1/2 alloy stl 170 000 psi 12 point flange screw plain50
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EndriesWI12 Point Flange Screw (CounterBore)SteelElectrolytic Zinc Basecoat + Topcoats (Climacoat, Climaseal, etc.)3/8-16x1-1/2 alloy stl 170 000 psi 12 point flange screw hex chrome free zinc flake silver 240 hours to red rust65
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OlanderCA12 Point Flange Screw (CounterBore)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-28 x 1 1/2 12-pt bolt sst rohs si2
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OlanderCA12 Point Flange Screw (CounterBore)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-24 x 1 1/25/16-24x1 1/2 12-pt bolt sst rohs () ()90
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain1/4-20 x 1 1/21/4-20 x 1 1/2 12 point cap screw alloy b18.2.125
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain1/4-20 x 1 1/21/4-20 x 1 1/2 12 point cap screw alloy b18.2.150
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain1/4-28 x 1 1/21/4-28 x 1 1/2 12 point cap screw alloy b18.2.125
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 1 1/23/8-24 x 1 1/2 12 point cap screw alloy b18.2.150
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain7/16-14 x 1 1/27/16-14 x 1 1/2 12 point cap screw alloy b18.2.110
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EndriesWI12 Point Flange Screw (CounterBore)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-28 x 1 1/21/4-28x1-1/2 flange 12 point screw stainless 18-851
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MTPCA12 Point Flange Screw (CounterBore)SteelPlain7/16-20 x 1 1/27/16-20 x 1 1/2 alloy 12 point flange bolts13,150
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MTPCA12 Point Flange Screw (CounterBore)SteelBlack Oxide5/16-18 x 1 1/212 pt flange screw alloy420
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MTPCA12 Point Flange Screw (CounterBore)SteelBlack Oxide1/4-20 x 1 1/212 pt flange screw alloy560
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MTPCA12 Point Flange Screw (CounterBore)SteelBlack Oxide3/8-16 x 1 1/212 pt flange screw alloy200
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MTPCA12 Point Flange Screw (CounterBore)SteelBlack Oxide7/16-14 x 1 1/212 pt flange screw alloy11,390
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MTPCA12 Point Flange Screw (CounterBore)SteelBlack Oxide1/2-13 x 1 1/212 pt flange screw alloy100
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ACCURATEIL12 Point Flange Screw (CounterBore)Grade 8Plain5/16-18 x 1 1/212-pt flange scr gr8 counter-bor26
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CenturyNY12 Point Flange Screw (CounterBore)Grade 8Plainscrew cap 5/16-24 x 1 1/2 12pt grade 81000
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LibertyIL12 Point Flange Screw (CounterBore)Grade 8Plain5/8-18 x 1 1/212-pt c/s100
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Alma BoltMI12 Point Flange Screw (CounterBore)SteelPlain7/16-20 x 1 1/2SAE 12-pt counterbore screw271
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MidStatesMI12 Point Flange Screw (CounterBore)SteelPlain3/4-16 x 1 1/212pt fl/b sc-cntrbore12
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MidStatesMI12 Point Flange Screw (CounterBore)SteelChrome1/4-20 x 1 1/212-pt -chrome ejot11
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MidStatesMI12 Point Flange Screw (CounterBore)SteelChrome5/16-18 x 1 1/212-pt -chrome15
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WDMBIA12 Point Flange Screw (CounterBore)SteelPlain3/4-10 x 1 1/2screw 12pt flange alloy (pl) 3/4-10x1 1/2 (W020) (W020) (W020)3,249
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WDMBIA12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 1 1/2scr 12pt flange alloy (pl) 3/8-16x1 1/2 (W020)9,484
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MTPCA12 Point Flange Screw (CounterBore)SteelBlack Oxide1/2-20 x 1 1/21/2-20x1 1/2 alloy blk 12 pt flange screwsstock
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IPCVA12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 1 1/23/8-16x1 1/2 12 pt. flange screw must meet 170 000 psi tensile strength min.1,171
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DeltaTX12 Point Flange Screw (CounterBore)SteelPlain7/16-20 x 1 1/212 pt countr-bor plain 7/16-20 x 1 1/2 (FINE THREAD)152
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DeltaTX12 Point Flange Screw (CounterBore)SteelPlain1/2-13 x 1 1/212 pt countr-bor plain 1/2-13 x 1 1/250
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DeltaTX12 Point Flange Screw (CounterBore)SteelPlain5/8-11 x 1 1/212 pt countr-bor plain 5/8-11 x 1 1/2 (DRILLED HEAD)95
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DeltaTX12 Point Flange Screw (CounterBore)SteelPlain3/4-10 x 1 1/212 pt countr-bor plain 3/4-10 x 1 1/2140
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DeltaTX12 Point Flange Screw (CounterBore)Grade B7Plain1/2-13 x 1 1/212 pt cntr-bor b7 grn 1/2-13 x 1 1/2 (XYLAN 1425 GREEN)100
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DeltaTX12 Point Flange Screw (CounterBore)Grade B7Plain5/8-11 x 1 1/212 pt countr-bor grn b7 5/8-11 x 1 1/2 (XYLAN 1425 GREEN)66
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DeltaTX12 Point Flange Screw (CounterBore)SteelPlain1/4-20 x 1 1/212 pt countr-bor plain 1/4-20 x 1 1/2235
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DeltaTX12 Point Flange Screw (CounterBore)SteelPlain5/16-18 x 1 1/212 pt countr-bor plain 5/16-18 x 1 1/250
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DeltaTX12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 1 1/212 pt countr-bor plain 3/8-24 x 1 1/2 (FINE THREAD)52
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DeltaTX12 Point Flange Screw (CounterBore)Grade B7Plain1/2-13 x 1 1/212 pt countr-bor b7 blue 1/2-13x1 1/2 (XYLAN 1425 BLUE)52
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WDMBIA12 Point Flange Screw (CounterBore)SteelPlain3/4-16 x 1 1/2screw 12pt flange all zf 3/4-16x1 1/2 drw (W030)143
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JET IndusWI12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 1 1/212pt. flange bolt 3/8-24x1 1/2 plain400
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JET IndusWI12 Point Flange Screw (CounterBore)SteelPlain1/2-20 x 1 1/212pt. flange bolt 1/2-20x1 1/2 pln50
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QFCTX12 Point Flange Screw (CounterBore)SteelPlain1/2-13 x 1 1/21/2-13x1 1/2 ferry head c/s alloy plain b18.2.1800
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ISSCOMO12 Point Flange Screw (CounterBore)SteelPlain1/4-20 x 1 1/212 point counterbore screw487
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ISSCOMO12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 1 1/212 point counterbore screw220
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ISSCOMO12 Point Flange Screw (CounterBore)SteelPlain5/8-11 x 1 1/212 point counterbore screw405
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System 22PA12 Point Flange Screw (CounterBore)Superalloy (Inconel, Hastelloy, Alloy 20)Silver5/8-18 x 1 1/2inconel 71815
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B & K FASTPA12 Point Flange Screw (CounterBore)Grade 8Plain9/16-18 x 1 1/29/16-18 x 1 1/2 12 pt flange bolts gr 8 plain b18.2.11
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QFCTX12 Point Flange Screw (CounterBore)SteelPlain1/2 x 1 1/21/2x1 1/2nf ferry hd cap screw b18.2.1122
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BHAMAL12 Point Flange Screw (CounterBore)SteelPlain7/16-14 x 1 1/212 pt counterbore bolt100
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BHAMTX12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 1 1/2(12-pt) counterbore549
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SRFAL12 Point Flange Screw (CounterBore)SteelPlain1/4-28 x 1 1/212 pt counterbore screw75
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SRFAL12 Point Flange Screw (CounterBore)SteelPlain7/16-14 x 1 1/212 pt counterbore screw-
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CNBIL12 Point Flange Screw (CounterBore)SteelPlain5/16-18 x 1 1/212-pt fl/b material 8640 or 8740 material with .844 unthreaded shank per finish ifi 11516319
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THRDFASTOK12 Point Flange Screw (CounterBore)SteelPlain5/8-11 x 1 1/212 pt counterbore screw b18.2.132
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THRDFASTOK12 Point Flange Screw (CounterBore)SteelPlain1/2-13 x 1 1/212 pt counterbore screw b18.2.1310
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THRDFASTAL12 Point Flange Screw (CounterBore)SteelPlain1/2-13 x 1 1/212 pt counterbore screw b18.2.119
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All SizeTX12 Point Flange Screw (CounterBore)SteelPlain3/4-10 x 1 1/23/4-10 x 1 1/2 12 point flange bolt plain b18.2.1160
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OptimasIL12 Point Flange Screw (CounterBore)SteelPlain1/2-13 x 1 1/21/2-13 x 1 1/2 12-point c/s50
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OptimasIL12 Point Flange Screw (CounterBore)SteelPlain1/2-13 x 1 1/21/2-13 x 1 1/2 12-point c/s50
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OptimasIL12 Point Flange Screw (CounterBore)SteelPlain1/2-13 x 1 1/21/2-13 x 1 1/2 12-point ferry head c/s50
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WurthIN12 Point Flange Screw (CounterBore)SteelPlain1/2-13 x 1 1/21/2-13 x 1-1/2 countr-bor screw alloy28,027
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WurthIN12 Point Flange Screw (CounterBore)SteelPlain3/4-10 x 1 1/23/4-10 x 1-1/2 cntr-bor screw alloy3,266
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WurthIN12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 1 1/23/8-16 x 1-1/2 countr-bor screw alloy12,009
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Valley NuWA12 Point Flange Screw (CounterBore)SteelPlain5/16-18 x 1 1/2nc 12 pt fl/b pl132
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Valley NuWA12 Point Flange Screw (CounterBore)SteelPlain1/4-20 x 1 1/2nc 12 pt fl/b pl49
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Valley NuWA12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 1 1/2nc 12 pt fl/b pl4
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Valley NuWA12 Point Flange Screw (CounterBore)SteelPlain3/4-10 x 1 1/2nc 12 pt fl/b pl25
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Valley NuWA12 Point Flange Screw (CounterBore)SteelPlain5/16-24 x 1 1/2nf 12 pt fl/b pl48
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Valley NuWA12 Point Flange Screw (CounterBore)SteelPlain1/4-28 x 1 1/2nf 12 pt fl/b pl75
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Valley NuWA12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 1 1/2nf 12 pt fl/b pl140
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Valley NuWA12 Point Flange Screw (CounterBore)SteelPlain7/16-20 x 1 1/2nf 12 pt fl/b pl111
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Valley NuWA12 Point Flange Screw (CounterBore)SteelPlain1/2-20 x 1 1/2nf 12 pt fl/b pl17
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Valley NuWA12 Point Flange Screw (CounterBore)SteelPlain5/8-18 x 1 1/2nf 12 pt fl/b pl14
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