Counterbore Screws (domestic)

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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DeltaTX12 Point Flange Screw (CounterBore)Grade B7MPlain5/8-11 x 2 1/212 pt countr-bor dom. lb7m 5/8-11x2 1/296
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DeltaTX12 Point Flange Screw (CounterBore)Grade B7MPlain3/4-10 x 1 3/412 pt countr-bor dom. lb7m 3/4-10x1 3/4200
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Spring BoTX12 Point Flange Screw (CounterBore)316, 317, A4 StainlessPlain5/8-11 x 25/8 (11) x 2 flange screw 12 point 316ss b18.2.1 b18.2.1 usainquire
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Spring BoTX12 Point Flange Screw (CounterBore)Grade B7Plain1 1/4-8 x 71-1/4(8) x 7 12 pt flange screw b7 b18.2.1 b18.2.1 usainquire
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Spring BoTX12 Point Flange Screw (CounterBore)Grade B7Plain7/16-14 x 1 3/47/16(14) x 1-3/4 flange screw 12 point a193 b7 / a320 l7 b18.2.1 b18.2.1 usainquire
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Spring BoTX12 Point Flange Screw (CounterBore)316, 317, A4 StainlessPlain5/8-11 x 1 3/45/8 (11) x 1-3/4 flange screw 12 point 316ss b18.2.1 b18.2.1 usainquire
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Spring BoTX12 Point Flange Screw (CounterBore)SteelPlain7/8-9 x 37/8(9) x 3 flange screw 12 point A286 660B b18.2.1 b18.2.1 usainquire
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Spring BoTX12 Point Flange Screw (CounterBore)Grade B16Plain3/4-10 x 73/4(10-3a) x 7 flange screw 12 point ..a193 grade b16 b18.2.1 b18.2.1 usainquire
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Spring BoTX12 Point Flange Screw (CounterBore)Superalloy (Inconel, Hastelloy, Alloy 20)Plain5/16-24 x 2.005/16(24) x 2.00 flange 12-point screw nitronic 60 b18.2.1 b18.2.1 usainquire
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Spring BoTX12 Point Flange Screw (CounterBore)Grade B7Plain7/16-14 x 3/47/16(14) x 3/4 flange screw 12 point..a193 grade b7 b18.2.1 b18.2.1 usainquire
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Spring BoTX12 Point Flange Screw (CounterBore)Superalloy (Inconel, Hastelloy, Alloy 20)Plain5/16-18 x 1.005/16(18) x 1.00 12point flange screw 17-4ph h1150 b18.2.1 b18.2.1 usainquire
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Spring BoTX12 Point Flange Screw (CounterBore)316, 317, A4 StainlessPlain3/4-10 x 33/4 (10) x 3 flange screw 12 point flange screw 316 b18.2.1 b18.2.1 usainquire
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Spring BoTX12 Point Flange Screw (CounterBore)Superalloy (Inconel, Hastelloy, Alloy 20)Plain1/4-20 x 3/41/4(20) x .75 12point flange screw 17-4ph h1150 b18.2.1 b18.2.1 usainquire
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Spring BoTX12 Point Flange Screw (CounterBore)Superalloy (Inconel, Hastelloy, Alloy 20)Plain3/4-10 x 1 3/43/4 (10) x 1-3/4 flange screw 12 pt inconel 718 b18.2.1 b18.2.1 usainquire
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Spring BoTX12 Point Flange Screw (CounterBore)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24 x 3/43/8(24-nf) x 3/4 flange screw 12 point..304ss b18.2.1 b18.2.1 usainquire
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Spring BoTX12 Point Flange Screw (CounterBore)Grades L7, L7MPlain3/8-16 x 1 1/23/8 (16) x 1-1/2 flange screw 12 pt. a320 gr. l7 b18.2.1 b18.2.1 usainquire
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Spring BoTX12 Point Flange Screw (CounterBore)316, 317, A4 StainlessPlain7/16-20 x 1 1/27/16(20-nf) x 1-1/2 flange screw 12 point 316 b18.2.1 b18.2.1 usainquire
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Spring BoTX12 Point Flange Screw (CounterBore)Grade B7Plain7/16-14 x 1 1/47/16(14) x 1-1/4 flange screw 12 point a193 b7 / a320 l7 b18.2.1 b18.2.1 usainquire
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