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    215 Products
    About Tapping Screws
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    Compare drilling, pointed, thread-forming, and thread-cutting tips to find the best choice for your material.

    Stainless Steel Flanged Hex Head Drilling Screws

    Image of Product. Front orientation. Tapping Screws. Stainless Steel Flanged Hex Head Drilling Screws.
    These corrosion-resistant screws save time and effort by drilling and fastening in one step. The hex head gives you a firm, high-torque grip with a nutdriver or socket. Screws have a flange under the head that spreads the load to prevent crushing thin metal.
    Length is measured from under the flange. Head height includes the flange.
    Corrosion-Resistant-Coated 18-8 Stainless Steel with Hardened Steel Tip—Penetrate metal and resist corrosion. The coating has been tested to extreme standards, including 1,000 hours of salt spray resistance, to hold up in wet and outdoor environments. The hardened tip pierces metal for secure fastening.
    Galvanic-Barrier-Coated 18-8 Stainless Steel with Hardened Steel Tip—Penetrate metal and resist corrosion from contact between dissimilar metals. The coating has been tested to extreme standards, including 1,000 hours of salt spray resistance, to hold up in wet and outdoor environments. The hardened tip pierces metal for secure fastening.
    Drill
    Tip
    Head
    Lg.
    Point
    Size
    Lg.
    Wd.
    Ht.
    Flange
    Dia.
    Max. Drilling
    Thk.
    Tapping
    Screw Type
    Approx. Threads
    per In.
    Pkg.
    Qty.
    Pkg.
    Corrosion-Resistant-Coated 18-8 Stainless Steel with Hardened Steel Tip
     
    No. 8 Screw Size
    1/2"No. 23/32"0.25"0.141"0.348"0.098"BSD182590420A33000000
    3/4"No. 23/32"0.25"0.141"0.348"0.098"BSD182590420A3500000
    1"No. 23/32"0.25"0.141"0.348"0.098"BSD182590420A3600000
    1 1/4"No. 23/32"0.25"0.141"0.348"0.098"BSD182590420A3700000
     
    No. 10 Screw Size
    3/4"No. 311/64"0.313"0.193"0.414"0.15"BSD162590420A4500000
    1"No. 37/32"0.313"0.193"0.414"0.15"BSD162590420A46000000
    1 1/4"No. 37/32"0.313"0.193"0.414"0.15"BSD161090420A4700000
     
    No. 12 Screw Size
    3/4"No. 33/16"0.313"0.194"0.432"0.187"BSD141090420A5800000
    1"No. 37/32"0.313"0.194"0.432"0.187"BSD141090420A5850000
    1 1/4"No. 45/16"0.313"0.198"0.432"0.21"CSD241090420A5950000
    1 1/2"No. 39/32"0.313"0.194"0.432"0.187"BSD141090420A5870000
    1 1/2"No. 535/64"0.313"0.198"0.432"1/2"CSD241090420A6100000
    2"No. 535/64"0.313"0.198"0.432"1/2"CSD241090420A61200000
     
    1/4" Screw Size
    1"No. 35/16"0.375"0.238"0.52"0.21"BSD141090420A6200000
     
    Galvanic-Barrier-Coated 18-8 Stainless Steel with Hardened Steel Tip
     
    No. 10 Screw Size
    3/4"No. 213/64"0.313"0.16"0.4"0.106"BSD161090420A4010000
    1"No. 27/32"0.313"0.157"0.4"0.11"BSD161097246A1160000
    1 1/2"No. 213/64"0.313"0.16"0.414"0.106"BSD161090420A4050000
    2"No. 27/32"0.313"0.163"0.432"0.177"BSD161097246A11700000
     
    No. 12 Screw Size
    1"No. 21/4"0.313"0.2"0.415"0.14"BSD141090420A5110000
    1 1/2"No. 21/4"0.313"0.2"0.415"0.14"BSD141090420A5200000
    2"No. 21/4"0.313"0.2"0.415"0.14"BSD141090420A52500000
    2 1/2"No. 39/32"0.313"0.2"0.415"0.187"BSD141090420A59000000
     
    1/4" Screw Size
    1"No. 25/16"0.375"1/4"1/2"0.155"BSD141090420A61400000
    1"No. 35/16"0.375"1/4"1/2"0.21"CSD201090420A65000000
    1 1/2"No. 25/16"0.375"1/4"1/2"0.155"BSD141090420A51600000
    1 1/2"No. 35/16"0.375"1/4"1/2"0.21"CSD201090420A65500000
    1 1/2"No. 519/32"0.375"0.247"1/2"1/2"CSD20597246A1110000
    2"No. 25/16"0.375"1/4"1/2"0.155"BSD141090420A51800000
    2"No. 35/16"0.375"0.237"0.52"0.21"CSD201090420A65900000
    2"No. 545/64"0.375"0.237"0.52"1/2"CSD201090420A68100000
    2 1/2"No. 35/16"0.375"1/4"1/2"0.21"CSD20590420A66200000
    3"No. 35/16"0.375"0.237"0.52"0.21"CSD20590420A66500000
    3"No. 519/32"0.375"0.247"1/2"1/2"CSD20597246A1120000
    4"No. 35/16"0.375"0.237"0.52"0.21"CSD20590420A66700000
    4"No. 519/32"0.375"0.247"1/2"1/2"CSD20597246A11300000
    5"No. 519/32"0.375"0.247"1/2"1/2"CSD20197246A1140000
    6"No. 519/32"0.375"0.247"1/2"1/2"CSD20197246A1150000
     

    Stainless Steel Phillips Flat Head Drilling Screws

    Image of Product. Front orientation. Tapping Screws. Stainless Steel Phillips Flat Head Drilling Screws.
    These corrosion-resistant screws drill and fasten in one step to secure trim, brackets, and other objects with countersunk holes. They have a flat, beveled head to sit flush with surfaces. The Phillips drive withstands less torque than a hex drive, so drill with even, steady pressure.
    Length is measured from the top of the head.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these screws resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Drill
    Tip
    Head
    Lg.
    Point
    Size
    Lg.
    Dia.
    Ht.
    Max. Drilling
    Thk.
    Tapping
    Screw Type
    Drive
    Size
    Approx. Threads
    per In.
    Countersink
    Angle
    Flat Head
    Profile
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    No. 4 Screw Size
    1/2"No. 25/32"0.212"0.067"0.08"BSDNo. 12482°
    Standard
    2594195A36100000
    5/8"No. 25/32"0.212"0.067"0.08"BSDNo. 12482°
    Standard
    2594195A3620000
    3/4"No. 25/32"0.212"0.067"0.08"BSDNo. 12482°
    Standard
    2594195A3630000
     
    No. 6 Screw Size
    1/2"No. 23/16"0.262"0.083"0.09"BSDNo. 22082°
    Standard
    2594195A3640000
    3/4"No. 23/16"0.262"0.083"0.09"BSDNo. 22082°
    Standard
    2594195A3650000
    7/8"No. 23/16"0.262"0.083"0.09"BSDNo. 22082°
    Standard
    2594195A3660000
    1"No. 23/16"0.262"0.083"0.09"BSDNo. 22082°
    Standard
    1094195A3670000
     
    No. 8 Screw Size
    1/2"No. 27/32"0.312"0.1"0.1"BSDNo. 21882°
    Standard
    2594195A3710000
    5/8"No. 27/32"0.312"0.1"0.1"BSDNo. 21882°
    Standard
    2594195A3720000
    3/4"No. 27/32"0.312"0.1"0.1"BSDNo. 21882°
    Standard
    2594195A3730000
    7/8"No. 27/32"0.312"0.1"0.1"BSDNo. 21882°
    Standard
    2594195A3740000
    1"No. 27/32"0.312"0.1"0.1"BSDNo. 21882°
    Standard
    2594195A3750000
    1 1/4"No. 27/32"0.312"0.1"0.1"BSDNo. 21882°
    Standard
    1094195A3760000
    2"No. 27/32"0.312"0.1"0.1"BSDNo. 21882°
    Standard
    1094195A3780000
    2 1/2"No. 27/32"0.312"0.1"0.1"BSDNo. 21882°
    Standard
    1094195A3790000
     
    No. 10 Screw Size
    3/4"No. 319/64"0.362"0.116"0.11"BSDNo. 21682°
    Standard
    1094195A3810000
    7/8"No. 319/64"0.362"0.116"0.11"BSDNo. 21682°
    Standard
    1094195A3820000
    1"No. 319/64"0.362"0.116"0.11"BSDNo. 21682°
    Standard
    1094195A3830000
    1 1/4"No. 319/64"0.362"0.116"0.11"BSDNo. 21682°
    Standard
    1094195A3840000
    1 1/2"No. 319/64"0.362"0.116"0.11"BSDNo. 21682°
    Standard
    1094195A3850000
    2"No. 319/64"0.362"0.116"0.11"BSDNo. 21682°
    Standard
    1094195A3860000
     
    No. 12 Screw Size
    1"No. 311/32"0.412"0.132"0.14"BSDNo. 31482°
    Standard
    1094195A3870000
    1 1/4"No. 311/32"0.412"0.132"0.14"BSDNo. 31482°
    Standard
    1094195A3880000
    1 1/2"No. 311/32"0.412"0.132"0.14"BSDNo. 31482°
    Standard
    594195A3890000
    2"No. 311/32"0.412"0.132"0.14"BSDNo. 31482°
    Standard
    594195A3900000
    2 1/2"No. 311/32"0.412"0.132"0.14"BSDNo. 31482°
    Standard
    594195A3910000
     
    No. 14 Screw Size
    3/4"No. 311/32"0.477"0.153"0.175"BSDNo. 31482°
    Standard
    594195A3920000
    1"No. 311/32"0.477"0.153"0.175"BSDNo. 31482°
    Standard
    594195A3930000
    1 1/4"No. 311/32"0.477"0.153"0.175"BSDNo. 31482°
    Standard
    594195A3940000
    1 1/2"No. 311/32"0.477"0.153"0.175"BSDNo. 31482°
    Standard
    594195A3950000
    1 3/4"No. 311/32"0.477"0.153"0.175"BSDNo. 31482°
    Standard
    594195A3960000
    2"No. 311/32"0.477"0.153"0.175"BSDNo. 31482°
    Standard
    594195A3970000
    2 1/4"No. 311/32"0.477"0.153"0.175"BSDNo. 31482°
    Standard
    594195A3980000
    2 1/2"No. 311/32"0.477"0.153"0.175"BSDNo. 31482°
    Standard
    194195A3990000
    3"No. 311/32"0.477"0.153"0.175"BSDNo. 31482°
    Standard
    194195A4000000
    3 1/2"No. 311/32"0.477"0.153"0.175"BSDNo. 31482°
    Standard
    194195A4010000
    4"No. 311/32"0.477"0.153"0.175"BSDNo. 31482°
    Standard
    194195A4020000
    4 1/2"No. 311/32"0.477"0.153"0.175"BSDNo. 31482°
    Standard
    194195A4030000
    5"No. 311/32"0.477"0.153"0.175"BSDNo. 31482°
    Standard
    194195A4040000
     

    Steel Phillips Rounded Head Drilling Screws

    Image of Product. Front orientation. Tapping Screws. Steel Phillips Rounded Head Drilling Screws.
    Drill and fasten metal in one step and create a finished look with these rounded head screws. The Phillips drive withstands less torque than a hex drive, so apply even, steady pressure when drilling.
    Length is measured from under the head.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Drill
    Tip
    Head,
    mm
    Lg.,
    mm
    Point
    Size
    Lg.,
    mm
    Dia.
    Ht.
    Max. Drilling
    Thk., mm
    Drive
    Size
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
     
    M2.9 Screw Size
    9.5No. 16.255.62.41.9No. 1DIN 7504 N, ISO 704910090769A10100000
    13No. 16.45.62.41.9No. 1DIN 7504 N, ISO 704910090769A1020000
    16No. 16.45.62.41.9No. 1DIN 7504 N, ISO 704910090769A1030000
    19No. 16.55.62.41.9No. 1DIN 7504 N, ISO 704910090769A1040000
     
    M3.5 Screw Size
    9.5No. 26.6572.62.25No. 2DIN 7504 N, ISO 704910090769A1050000
    13No. 26.872.62.25No. 2DIN 7504 N, ISO 704910090769A1060000
    16No. 26.872.62.25No. 2DIN 7504 N, ISO 704910090769A1070000
    19No. 26.972.62.25No. 2DIN 7504 N, ISO 704910090769A1080000
    22No. 26.972.62.25No. 2DIN 7504 N, ISO 704910090769A1090000
    25No. 26.972.62.25No. 2DIN 7504 N, ISO 704910090769A1110000
    32No. 26.972.62.25No. 2DIN 7504 N, ISO 704910090769A11200000
     
    M3.9 Screw Size
    9.5No. 26.77.52.82.4No. 2DIN 7504 N, ISO 704910090769A11300000
    13No. 27.27.52.82.4No. 2DIN 7504 N, ISO 704910090769A1140000
    16No. 27.27.52.82.4No. 2DIN 7504 N, ISO 704910090769A1150000
    19No. 27.37.52.82.4No. 2DIN 7504 N, ISO 704910090769A1160000
    22No. 27.37.52.82.4No. 2DIN 7504 N, ISO 704910090769A1170000
    25No. 27.37.52.82.4No. 2DIN 7504 N, ISO 704910090769A11800000
    32No. 27.57.52.82.4No. 2DIN 7504 N, ISO 704910090769A11900000
    38No. 27.57.52.82.4No. 2DIN 7504 N, ISO 704910090769A12100000
    45No. 27.57.52.82.4No. 2DIN 7504 N, ISO 704910090769A12200000
    50No. 27.57.52.82.4No. 2DIN 7504 N, ISO 704910090769A12300000
     
    M4.2 Screw Size
    13No. 28.78.23.13No. 2DIN 7504 N, ISO 704910090769A1240000
    16No. 28.78.23.13No. 2DIN 7504 N, ISO 704910090769A1250000
    19No. 28.78.23.13No. 2DIN 7504 N, ISO 704910090769A12600000
    22No. 28.78.23.13No. 2DIN 7504 N, ISO 704910090769A12700000
    25No. 28.78.23.13No. 2DIN 7504 N, ISO 704910090769A12800000
    32No. 298.23.13No. 2DIN 7504 N, ISO 704910090769A12900000
    38No. 298.23.13No. 2DIN 7504 N, ISO 704910090769A13100000
    45No. 298.23.13No. 2DIN 7504 N, ISO 70495090769A1320000
    50No. 298.23.13No. 2DIN 7504 N, ISO 70495090769A13300000
     
    M4.8 Screw Size
    13No. 29.39.53.74.4No. 2DIN 7504 N, ISO 704910090769A1340000
    16No. 210.29.53.74.4No. 2DIN 7504 N, ISO 704910090769A13500000
    19No. 210.39.53.74.4No. 2DIN 7504 N, ISO 704910090769A13600000
    22No. 210.39.53.74.4No. 2DIN 7504 N, ISO 704910090769A13700000
    25No. 210.39.53.74.4No. 2DIN 7504 N, ISO 704910090769A13800000
    32No. 210.59.53.74.4No. 2DIN 7504 N, ISO 70495090769A1390000
    38No. 210.59.53.74.4No. 2DIN 7504 N, ISO 70495090769A1410000
    45No. 210.59.53.74.4No. 2DIN 7504 N, ISO 70495090769A1420000
    50No. 210.59.53.74.4No. 2DIN 7504 N, ISO 70495090769A14300000
    60No. 210.59.53.74.4No. 2DIN 7504 N, ISO 70495090769A14400000
    70No. 210.59.53.74.4No. 2DIN 7504 N, ISO 70492590769A14500000
    80No. 210.59.53.74.4No. 2DIN 7504 N, ISO 70492590769A1460000
    90No. 210.59.53.74.4No. 2DIN 7504 N, ISO 70492590769A14700000
    100No. 210.59.53.74.4No. 2DIN 7504 N, ISO 70492590769A14800000
    110No. 210.59.53.74.4No. 2DIN 7504 N, ISO 70491090769A1490000
    120No. 210.59.53.74.4No. 2DIN 7504 N, ISO 70491090769A1510000
     
    M5.5 Screw Size
    16No. 3111145.25No. 3DIN 7504 N, ISO 70495090769A1520000
    19No. 3111145.25No. 3DIN 7504 N, ISO 70495090769A1530000
    22No. 3111145.25No. 3DIN 7504 N, ISO 70495090769A1540000
    25No. 3111145.25No. 3DIN 7504 N, ISO 70495090769A15500000
    32No. 3111145.25No. 3DIN 7504 N, ISO 70495090769A15600000
    38No. 3111145.25No. 3DIN 7504 N, ISO 70495090769A15700000
    45No. 3111145.25No. 3DIN 7504 N, ISO 70492590769A1580000
    50No. 3111145.25No. 3DIN 7504 N, ISO 70492590769A1590000
    60No. 3111145.25No. 3DIN 7504 N, ISO 70492590769A16100000
    70No. 3111145.25No. 3DIN 7504 N, ISO 70492590769A16200000
    80No. 3111145.25No. 3DIN 7504 N, ISO 70492590769A16300000
     
    M6.3 Screw Size
    16No. 31212.54.66No. 3DIN 7504 N, ISO 70495090769A16400000
    19No. 31212.54.66No. 3DIN 7504 N, ISO 70495090769A16500000
    22No. 31212.54.66No. 3DIN 7504 N, ISO 70495090769A16600000
    25No. 31212.54.66No. 3DIN 7504 N, ISO 70495090769A16700000
    32No. 31212.54.66No. 3DIN 7504 N, ISO 70492590769A1680000
    38No. 31212.54.66No. 3DIN 7504 N, ISO 70492590769A1690000
    45No. 31212.54.66No. 3DIN 7504 N, ISO 70492590769A1710000
    50No. 31212.54.66No. 3DIN 7504 N, ISO 70492590769A1720000
    60No. 31212.54.66No. 3DIN 7504 N, ISO 70492590769A17300000
    70No. 31212.54.66No. 3DIN 7504 N, ISO 70491090769A1740000
    80No. 31212.54.66No. 3DIN 7504 N, ISO 70491090769A1750000
    90No. 31212.54.66No. 3DIN 7504 N, ISO 70491090769A1760000
    100No. 31212.54.66No. 3DIN 7504 N, ISO 70491090769A1770000
     

    Stainless Steel Flanged Hex Head Drilling Screws for Aluminum

    Image of Product. Front orientation. Tapping Screws. Stainless Steel Flanged Hex Head Drilling Screws for Aluminum .
    In a single step, these corrosion-resistant screws drill and fasten aluminum to aluminum or metal framing. The coating on these stainless steel screws blocks galvanic corrosion between the screw and aluminum that can weaken joints. The hex head gives you a firm, high-torque grip with a nutdriver or socket. Screws have a flange under the head that spreads the load to prevent crushing thin metal.
    Length is measured from the flange. Head height includes the flange.
    Drill
    Tip
    Head
    Lg.
    Point
    Size
    Lg.
    Wd.
    Ht.
    Flange
    Dia.
    Max. Drilling
    Thk.
    Tapping
    Screw Type
    Approx. Threads
    per In.
    Pkg.
    Qty.
    Pkg.
    Galvanic-Barrier-Coated 18-8 Stainless Steel
     
    No. 8 Screw Size
    1/2"No. 23/16"0.25"0.141"0.348"0.098"BSD182590821A330000000
    3/4"No. 23/16"0.25"0.141"0.348"0.098"BSD182590821A35000000
     
    No. 10 Screw Size
    3/4"No. 31/4"0.313"0.151"0.414"0.15"BSD162590821A35700000
    1"No. 31/4"0.313"0.151"0.414"0.15"BSD162590821A35900000
     
    No. 12 Screw Size
    3/4"No. 39/32"0.313"0.194"0.432"0.187"BSD142590821A37400000
    1"No. 39/32"0.313"0.194"0.432"0.187"BSD142590821A37700000
    1 1/4"No. 39/32"0.313"0.194"0.432"0.187"BSD141090821A38000000
    1 1/2"No. 39/32"0.313"0.194"0.432"0.187"BSD142590821A39000000
    2"No. 39/32"0.313"0.194"0.432"0.187"BSD14590821A4200000
    2 1/2"No. 39/32"0.313"0.194"0.432"0.187"BSD14590821A4600000
    3"No. 39/32"0.313"0.194"0.432"0.187"BSD14590821A51000000
     
    1/4" Screw Size
    3/4"No. 35/16"0.375"0.24"0.52"0.21"BSD142590821A55000000
    1"No. 35/16"0.375"0.24"0.52"0.21"BSD142590821A55300000
    1"No. 45/16"0.375"0.24"0.52"0.236"CSD201090821A61000000
    1 1/2"No. 35/16"0.375"0.24"0.52"0.21"BSD141090821A55900000
    1 1/2"No. 45/16"0.375"0.24"0.52"0.236"CSD201090821A61300000
     

    Stainless Steel Square Drive Rounded Head Drilling Screws

    Image of Product. Front orientation. Tapping Screws. Stainless Steel Square Drive Rounded Head Drilling Screws.
    Drill and fasten in one step with screws that prevent drivers from slipping out. Also known as Robertson drive, the square recess withstands more torque than a Phillips drive. These screws resist corrosion and have a rounded head for a finished look.
    Length is measured from under the head.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these screws resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Drill
    Tip
    Head
    Lg.
    Point
    Size
    Lg.
    Dia.
    Ht.
    Max. Drilling
    Thk.
    Drive
    Size
    Approx. Threads
    per In.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    No. 6 Screw Size
    3/8"No. 29/64"0.27"0.097"0.09"No. 1202590203A611000000
    1/2"No. 29/64"0.27"0.097"0.09"No. 1202590203A61200000
     
    No. 8 Screw Size
    3/8"No. 23/16"0.322"0.115"0.1"No. 2182590203A61300000
    1/2"No. 23/16"0.322"0.115"0.1"No. 2182590203A61400000
    5/8"No. 23/16"0.322"0.115"0.1"No. 2182590203A61500000
    3/4"No. 23/16"0.322"0.115"0.1"No. 2182590203A61600000
    1"No. 23/16"0.322"0.115"0.1"No. 2181090203A61700000
    1 1/4"No. 23/16"0.322"0.115"0.1"No. 2181090203A61800000
    1 1/2"No. 23/16"0.322"0.115"0.1"No. 2181090203A61900000
    2"No. 23/16"0.322"0.115"0.1"No. 2181090203A62100000
    2 1/2"No. 23/16"0.322"0.115"0.1"No. 2181090203A62200000
     
    No. 10 Screw Size
    1/2"No. 213/64"0.373"0.133"0.11"No. 2161090203A62300000
    5/8"No. 31/4"0.373"0.133"0.175"No. 2161090203A62400000
    3/4"No. 31/4"0.373"0.133"0.175"No. 2161090203A62500000
    1"No. 31/4"0.373"0.137"0.15"No. 2162590203A11200000
    1 1/2"No. 31/4"0.373"0.137"0.15"No. 2162590203A11800000
    1 3/4"No. 31/4"0.373"0.133"0.175"No. 216590203A62600000
    2"No. 31/4"0.373"0.137"0.15"No. 2162590203A12100000
    2 1/2"No. 31/4"0.373"0.133"0.175"No. 216590203A62700000
    3"No. 31/4"0.373"0.133"0.175"No. 216590203A62800000
     
    No. 12 Screw Size
    3/4"No. 39/32"0.425"0.151"0.21"No. 3141090203A62900000
    1"No. 39/32"0.425"0.151"0.21"No. 3141090203A63100000
    1 1/4"No. 39/32"0.425"0.151"0.21"No. 314590203A63200000
    1 1/2"No. 39/32"0.425"0.151"0.21"No. 314590203A63300000
    2"No. 39/32"0.425"0.151"0.21"No. 314590203A63400000
     
    1/4" Screw Size
    3/4"No. 35/16"0.492"0.175"0.22"No. 314590203A63500000
    1"No. 35/16"0.492"0.175"0.22"No. 314590203A63600000
    1 1/4"No. 35/16"0.492"0.175"0.22"No. 314590203A63700000
    1 1/2"No. 35/16"0.492"0.175"0.22"No. 314190203A6380000
    2"No. 35/16"0.492"0.175"0.22"No. 314190203A6390000
     

    Steel Flanged Hex Head Drilling Screws

    Image of Product. Front orientation. Tapping Screws. Steel Flanged Hex Head Drilling Screws.
    Save time and effort with screws that drill and fasten in one step. The hex head gives you a firm, high-torque grip with a nutdriver or socket. Screws have a flange under the head that spreads the load to prevent crushing thin metal.
    Length is measured from under the flange. Head height includes the flange.
    Corrosion-Resistant-Coated Alloy Steel—The strongest steel drilling screws we sell. They have a coating that is tested to extreme standards, including 1,000 hours of salt spray resistance, to hold up in wet and outdoor environments.
    Drill
    Tip
    Head
    Lg.
    Point
    Size
    Lg.
    Wd.
    Ht.
    Flange
    Dia.
    Max. Drilling
    Thk.
    Tapping
    Screw Type
    Approx. Threads
    per In.
    Pkg.
    Qty.
    Pkg.
    Corrosion-Resistant-Coated Alloy Steel
     
    No. 10 Screw Size
    3/4"No. 313/64"0.313"0.151"0.414"0.15"BSD162590122A313000000
     
    No. 12 Screw Size
    7/8"No. 319/64"0.313"0.194"0.432"0.187"BSD142590122A31600000
    1"No. 319/64"0.313"0.194"0.432"0.187"BSD142590122A31900000
    1 1/2"No. 319/64"0.313"0.194"0.432"0.187"BSD142590122A32100000
    1 3/4"No. 521/32"0.313"0.194"0.432"1/2"CSD241090122A32700000
    2"No. 319/64"0.313"0.194"0.432"0.187"BSD142590122A32400000
     
    1/4" Screw Size
    1"No. 35/16"0.375"0.24"0.52"0.21"BSD141090122A32900000
    1 1/8"No. 47/16"0.375"0.24"0.52"0.236"CSD201090122A33500000
    1 1/2"No. 35/16"0.375"0.24"0.52"0.21"BSD141090122A33300000
    1 1/2"No. 47/16"0.375"0.24"0.52"0.236"CSD201090122A33800000
    2"No. 311/32"0.375"0.24"0.52"0.21"BSD141090122A3340000
    2"No. 427/64"0.375"0.24"0.52"0.236"CSD201090122A34100000
    2 1/2"No. 427/64"0.375"0.24"0.52"0.236"CSD201090122A34500000
     

    Steel Phillips Flat Head Drilling Screws

    Image of Product. Front orientation. Tapping Screws. Steel Phillips Flat Head Drilling Screws.
    In one step, drill and fasten trim, brackets, and other objects with countersunk holes. These screws have a flat, beveled head to sit flush with surfaces. The Phillips drive withstands less torque than a hex drive, so drill with even, steady pressure.
    Length is measured from the top of the head.
    Corrosion-Resistant-Coated Alloy Steel—The strongest steel drilling screws we sell. They have a coating that is tested to extreme standards, including 1,000 hours of salt spray resistance, to hold up in wet and outdoor environments.
    Drill
    Tip
    Head
    Lg.
    Point
    Size
    Lg.
    Dia.
    Ht.
    Max. Drilling
    Thk.
    Tapping
    Screw Type
    Drive
    Size
    Approx. Threads
    per In.
    Countersink
    Angle
    Flat Head
    Profile
    Pkg.
    Qty.
    Pkg.
    Corrosion-Resistant-Coated Alloy Steel
     
    No. 12 Screw Size
    1"No. 39/32"0.415"0.09"0.187"BSDNo. 31482°
    Standard
    2590122A617000000
    1 1/2"No. 39/32"0.415"0.09"0.187"BSDNo. 31482°
    Standard
    2590122A3460000
     
    1/4" Screw Size
    3"No. 41/2"0.46"0.1"0.312"BSDNo. 32082°
    Standard
    1090122A3470000
    4"No. 41/2"0.46"0.1"0.312"BSDNo. 32082°
    Standard
    1090122A34800000
     

    Aluminum Serrated-Flange Hex Head Drilling Screws for Aluminum

    Image of Product. Front orientation. Tapping Screws. Aluminum Serrated-Flange Hex Head Drilling Screws for Aluminum.
    Image of Product. Back orientation. Tapping Screws. Aluminum Serrated-Flange Hex Head Drilling Screws for Aluminum.
    Fasten lightweight aluminum components without worrying about galvanic corrosion. They’re also corrosion resistant and nonmagnetic. A serrated flange spreads the load to prevent crushing material and grips surfaces to resist mild vibration. The hex head gives you a firm, high-torque grip with a nutdriver or socket.
    Length is measured from the flange. Head height includes the flange.
    Drill
    Tip
    Head
    Lg.
    Point
    Size
    Lg.
    Wd.
    Ht.
    Flange
    Dia.
    Max. Drilling
    Thk.
    Tapping
    Screw Type
    Approx. Threads
    per In.
    Pkg.
    Qty.
    Pkg.
    Lightweight 7075 Aluminum
     
    No. 8 Screw Size
    1/2"No. 23/16"0.25"0.141"0.348"0.098"BSD181098248A220000000
    3/4"No. 23/16"0.25"0.141"0.348"0.098"BSD181098248A25000000
    1"No. 23/16"0.25"0.141"0.348"0.098"BSD181098248A27000000
     
    No. 10 Screw Size
    1/2"No. 213/64"0.313"0.151"0.414"0.106"BSD161098248A43000000
    3/4"No. 213/64"0.313"0.151"0.414"0.106"BSD161098248A47000000
    1"No. 213/64"0.313"0.151"0.414"0.106"BSD161098248A49000000
     
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