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Counterbore Screws, Steel (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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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain1/4-20 x 1 1/41/4-20 x 1 1/4 12 point cap screw alloy b18.2.1100
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain1/4-20 x 3/41/4-20 x 3/4 12 point cap screw alloy b18.2.175
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain1/4-28 x 1 1/41/4-28 x 1 1/4 12 point cap screw alloy b18.2.1125
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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)SteelPlain1/4-28 x 3/41/4-28 x 3/4 12 point cap screw alloy b18.2.120
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain5/16-18 x 15/16-18 x 1 12 point cap screw alloy b18.2.169
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain5/16-18 x 1 1/45/16-18 x 1 1/4 12 point cap screw alloy b18.2.150
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain5/16-18 x 1 3/45/16-18 x 1 3/4 12 point cap screw alloy b18.2.175
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain5/16-18 x 3/45/16-18 x 3/4 12 point cap screw alloy b18.2.162
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain5/16-18 x 7/85/16-18 x 7/8 12 point cap screw alloy b18.2.1125
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain5/16-24 x 15/16-24 x 1 12 point cap screw alloy b18.2.1295
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain5/16-24 x 1 1/45/16-24 x 1 1/4 12 point cap screw alloy b18.2.1120
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain5/16-24 x 3/45/16-24 x 3/4 12 point cap screw alloy b18.2.1150
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain5/16-24 x 7/85/16-24 x 7/8 12 point cap screw alloy b18.2.125
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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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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)SteelPlain3/4-16 x 2 1/43/4-16x2 1/4 fine 12-point flange screw alloy pln b18.2.115
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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)SteelPlain7/16-20 x 2 1/2fine 12-point fl/b b18.2.125
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain5/8-11 x 1 1/4coarse 12-point fl/b b18.2.1210
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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)SteelPlain1/2-20 x 1 3/4fine 12-point fl/b b18.2.1195
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain1/2-13 x 5coarse 12-point fl/b b18.2.125
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain1/4-28 x 2fine 12-point fl/b b18.2.1100
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain5/16-24 x 3 1/4fine 12-point fl/b b18.2.150
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain1/4-28 x 2 1/4fine 12-point fl/b b18.2.1100
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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)SteelPlain5/16-18 x 45/16-18x4 coarse 12-point flange screw alloy pln b18.2.135
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain7/8-9 x 2 1/47/8-9x2 1/4 coarse 12-point flange screw alloy pln b18.2.116
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain5/8-18 x 2 3/45/8-18x2 3/4 fine 12-point flange screw alloy pln b18.2.15
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain7/16-14 x 2 1/27/16-14x2 1/2 coarse 12-point flange screw alloy pln b18.2.125
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain5/16-18 x 3 1/45/16-18x3 1/4 coarse 12-point flange screw alloy pln b18.2.15
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain5/8-18 x 3 1/25/8-18x3 1/2 fine 12-point flange screw alloy pln b18.2.110
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ASMCIL12 Point Flange Screw (CounterBore)SteelPlain1/2-20 x 31/2-20x3 fine 12-point flange screw alloy pln b18.2.18
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain1/4-20 x 1 1/41/4-20 x 1 1/4 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 b18.2.125
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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 1/41/4-28 x 1 1/4 12 point cap screw alloy b18.2.1100
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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)SteelPlain5/16-18 x 15/16-18 x 1 12 point cap screw alloy b18.2.1100
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain5/16-18 x 1 1/45/16-18 x 1 1/4 12 point cap screw alloy b18.2.150
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain5/16-18 x 1 3/45/16-18 x 1 3/4 12 point cap screw alloy b18.2.125
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain5/16-18 x 25/16-18 x 2 12 point cap screw alloy b18.2.125
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain5/16-18 x 3/45/16-18 x 3/4 12 point cap screw alloy b18.2.1100
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain5/16-24 x 15/16-24 x 1 12 point cap screw alloy b18.2.175
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AbabaCA12 Point Flange Screw (CounterBore)SteelPlain5/16-24 x 7/85/16-24 x 7/8 12 point cap screw alloy b18.2.125
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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)SteelPlain5/16-24 x 1/25/16-24 x 1/2 12 point cap screw alloy b18.2.1100
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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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QFCT X12 Point Flange Screw (CounterBore)SteelPlain1/2 x 1 1/41/2x1 1/4nc ferry head cap screw b18.2.1100
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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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QFCTX12 Point Flange Screw (CounterBore)SteelZinc/Clear3/4-10 x 23/4-10x2 ferry head c/s 170ksi mech zinc mtrs must show hrc 37-45 and chemistry b18.2.174
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B & K FASTPA12 Point Flange Screw (CounterBore)SteelPlain1/41/4 counterbore # csc55655 b18.2.11
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B & K FASTPA12 Point Flange Screw (CounterBore)SteelPlain5/16-18 x 15/16-18 x 1 12 pt flange bolts b18.2.19
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B & K FASTPA12 Point Flange Screw (CounterBore)SteelPlain5/16-18 x 1 1/45/16-18 x 1 1/4 12 pt flange bolts b18.2.1347
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B & K FASTPA12 Point Flange Screw (CounterBore)SteelPlain5/16-24 x 15/16-24 x 1 12 pt flange bolts b18.2.154
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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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B & K FASTPA12 Point Flange Screw (CounterBore)SteelPlain1/2-13 x 1 1/41/2-13 x 1 1/4 12 pt flange bolts b18.2.125
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B & K FASTPA12 Point Flange Screw (CounterBore)SteelPlain1/2-13 x 2 1/21/2-13 x 2 1/2 12 pt flange bolts b18.2.125
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B & K FASTPA12 Point Flange Screw (CounterBore)SteelPlain1/2-20 x 2 1/21/2-20 x 2 1/2 12 pt flange bolts b18.2.165
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B & K FASTPA12 Point Flange Screw (CounterBore)SteelPlain5/8-11 x 1 3/45/8-11 x 1 3/4 12 pt flange bolts b18.2.144
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B & K FASTPA12 Point Flange Screw (CounterBore)SteelPlain5/8-18 x 25/8-18 x 2 12 pt flange bolts b18.2.117
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B & K FASTPA12 Point Flange Screw (CounterBore)SteelPlain5/8-18 x 2 1/25/8-18 x 2 1/2 12 pt flange bolts b18.2.128
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B & K FASTPA12 Point Flange Screw (CounterBore)SteelPlain7/8-14 x 47/8-14 x 4 12 pt flange bolts b18.2.11
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