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3/8 Counterbore Screws (ASME B18. 2.1)

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 
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BHAMAL12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 2 1/43/8-24 x 2 1/4 (12 point) counterbore b18.2.1974
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BHAMAL12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 13/8-16x1 12 pt counterbore bolt b18.2.150
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 13/8-16 x 1 12 point cap screw alloy b18.2.144
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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 13/8-24 x 1 12 point cap screw alloy b18.2.160
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AbabaCA12 Point Flange Screw (CounterBore)SteelZinc/Clear3/8-24 x 1 1/43/8-24 x 1 1/4 12 point cap screw alloy znc b18.2.12224
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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)SteelPlain3/8-24 x 1 3/43/8-24 x 1 3/4 12 point cap screw alloy b18.2.139
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 23/8-24 x 2 12 point cap screw alloy b18.2.1100
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 2 1/43/8-24 x 2 1/4 12 point cap screw alloy partial thread b18.2.1183
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 2 1/23/8-24 x 2 1/2 12 point cap screw alloy b18.2.116
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 2 1/43/8-16 x 2 1/4 12 point cap screw alloy b18.2.110
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 2 3/43/8-24 x 2 3/4 12 point cap screw alloy b18.2.137
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 33/8-24 x 3 12 point cap screw alloy b18.2.120
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 3 1/23/8-24 x 3 1/2 12 point cap screw alloy b18.2.140
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 3/43/8-24 x 3/4 12 point cap screw alloy b18.2.190
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 7/83/8-24 x 7/8 12 point cap screw alloy b18.2.141
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 1 1/43/8-16 x 1 1/4 12 point cap screw alloy b18.2.13
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 2 1/43/8-24 x 2 1/4 12 point cap screw full thrd alloy b18.2.190
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GLFOH12 Point Flange Screw (CounterBore)Superalloy (Inconel, Hastelloy, Alloy 20)Plain3/8-24 x 2 1/23/8-24x2-1/2 12-pt flange bolt 17-4 ph s/s b18.2.1 () () ()150
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GLFOH12 Point Flange Screw (CounterBore)Superalloy (Inconel, Hastelloy, Alloy 20)Plain3/8-24 x 2 1/43/8-24x2-1/4 12-pt flange bolt 17-4 ph s/s b18.2.1 () () ()50
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GLFOH12 Point Flange Screw (CounterBore)Superalloy (Inconel, Hastelloy, Alloy 20)Plain3/8-24 x 23/8-24x2 12-pt flange bolt 17-4 ph s/s b18.2.1 () () ()49
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GLFOH12 Point Flange Screw (CounterBore)Superalloy (Inconel, Hastelloy, Alloy 20)Plain3/8-16 x 23/8-16x2 12-pt flange bolt 17-4 ph s/s b18.2.1 () () ()50
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 53/8-16x5 coarse 12-point flange screw alloy pln b18.2.115
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 3 1/2coarse 12-point fl/b b18.2.110
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 2 1/4coarse 12-point fl/b b18.2.19
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 3/4fine 12-point fl/b b18.2.1251
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 4 1/23/8-24x4 1/2 fine 12-point flange screw alloy pln b18.2.16
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 1 1/43/8-16x1 1/4 coarse 12-point flange screw alloy pln b18.2.182
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 13/8-16 x 1 12 point cap screw alloy b18.2.1140
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 13/8-24 x 1 12 point cap screw alloy b18.2.140
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 1 1/43/8-24 x 1 1/4 12 point cap screw alloy b18.2.160
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 1 1/43/8-24 x 1 1/4 12 point cap screw alloy b18.2.120
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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)SteelPlain3/8-24 x 1 3/43/8-24 x 1 3/4 12 point cap screw alloy b18.2.130
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 23/8-24 x 2 12 point cap screw alloy b18.2.115
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 23/8-16 x 2 12 point cap screw alloy b18.2.156
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 2 1/43/8-16 x 2 1/4 12 point cap screw alloy b18.2.150
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B & K FASTPA12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 1 3/43/8-16 x 1 3/4 12 pt flange bolts b18.2.12
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B & K FASTPA12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 4 3/43/8-16 x 4 3/4 12 pt flange bolts b18.2.1104
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General FMI12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 13/8-16 x 1 12 pt ctbr scr b18.2.1529
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OSSCORI12 Point Flange Screw (CounterBore)Grade 8Plain3/8-16 x 13/8-16x1 ferry ctrbore cap screw gr8 b18.2.113
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OSSCORI12 Point Flange Screw (CounterBore)Grade 8Plain3/8-24 x 13/8-24x1 ferry ctrbore cap screw gr8 b18.2.150
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QFCTX12 Point Flange Screw (CounterBore)SteelPlain3/8 x 1 1/43/8x1 1/4nc ferry head cap scr b18.2.1100
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Bostwick IN12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 1 3/43/8-16 x 1 3/4 12 pt. counterbore screw alloy b18.2.150
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Bostwick IN12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 1 1/43/8-24 x 1 1/4 12 pt. counterbore screw alloy b18.2.158
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THRDFASTMS12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 1 1/412 pt counterbore screw b18.2.1204
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All SizeTX12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 2 1/43/8-16 x 2 1/4 12 point flange bolt plain b18.2.189
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All SizeTX12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 1 1/43/8-16 x 1 1/4 12 point flange bolt plain b18.2.150
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All SizeTX12 Point Flange Screw (CounterBore)SteelPlain3/8-24 x 2 1/43/8-24 x 2 1/4 12 point flange bolt plain b18.2.1142
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All SizeTX12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 43/8-16 x 4 12 point flange bolt plain b18.2.182
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All SizeTX12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 4 1/23/8-16 x 4-1/2 12 point flange bolt plain b18.2.1331
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All SizeTX12 Point Flange Screw (CounterBore)SteelPlain3/8-16 x 23/8-16 x 2 12 point flange bolt b18.2.154
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FACCAOnt12 Point Flange Screw (CounterBore)SteelZinc/Clear3/8-16 x 3 1/212 point flanged countr-bor screw 3/8-16 unc-3a x 3 1/2 lg medium carbon alloy steel quenched & tempered not plated ifi 115-1986 b18.2.1400
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