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    85 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.

    Sealing Steel Flanged Hex Head Drilling Screws with Washer

    Image of Product. Front orientation. Tapping Screws. Sealing Steel Flanged Hex Head Drilling Screws with Washer.
    Image of Product. Back orientation. Tapping Screws. Sealing Steel Flanged Hex Head Drilling Screws with Washer.
    Drill, drive, and create a watertight seal all in one shot. The screws have rubber-bonded washer that compresses to keep out moisture. The washer also spreads the load to prevent crushing thin metal. Use a nutdriver or socket to turn the hex head.
    Length is measured from under the head.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Corrosion-Resistant-Coated Steel—The coating has been tested to extreme standards, including 1,000 hours of salt spray resistance, to hold up in wet and outdoor environments.
    Corrosion-Resistant-Coated Steel with 18-8 Stainless Steel Head—These screws have a steel shank and rust-resistant stainless steel head. The coating has been 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.
    Max. Drilling
    Thk.
    Tapping
    Screw Type
    Approx. Threads
    per In.
    Washer
    Material
    Washer
    OD
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
     
    No. 8 Screw Size
    3/4"No. 23/16"0.25"0.242"0.098"BSD18Rubber/Steel0.5"5094059A20100000
    1"No. 20.148"0.25"0.248"0.098"BSD18Rubber/Steel0.5"2594059A2030000
    1 1/2"No. 29/64"0.25"0.242"0.098"BSD18Rubber/Steel0.5"2594059A2050000
     
    No. 10 Screw Size
    3/4"No. 31/4"0.313"0.252"0.15"BSD16Rubber/Steel0.5"10094059A24500000
    1"No. 31/4"0.313"0.279"0.176"BSD16Rubber/Steel0.5"10094059A24700000
    1 1/4"No. 37/32"0.313"0.252"0.15"BSD16Rubber/Steel0.5"5094059A24900000
     
    No. 12 Screw Size
    3/4"No. 39/32"0.313"0.295"0.187"BSD14Rubber/Steel0.563"10094059A29400000
    7/8"No. 40.325"0.313"0.303"0.21"CSD24Rubber/Steel0.563"5094059A26100000
    1"No. 39/32"0.313"0.295"0.187"BSD14Rubber/Steel0.563"10094059A29600000
    1 1/4"No. 30.254"0.313"0.303"0.187"BSD14Rubber/Steel0.563"5094059A29800000
    1 1/4"No. 40.325"0.313"0.303"0.21"CSD24Rubber/Steel0.563"1094059A26500000
    1 1/4"No. 545/64"0.313"0.295"1/2"CSD24Rubber/Steel0.563"5094059A31100000
    1 1/2"No. 521/32"0.313"0.295"1/2"CSD24Rubber/Steel0.563"2594059A31300000
    2"No. 30.254"0.313"0.303"0.187"BSD14Rubber/Steel0.563"5094059A30100000
    2"No. 521/32"0.313"0.295"1/2"CSD24Rubber/Steel0.563"2594059A31500000
    2 1/2"No. 30.254"0.313"0.303"0.187"BSD14Rubber/Steel0.563"2594059A30300000
    3"No. 31/4"0.313"0.295"0.187"BSD14Rubber/Steel0.563"1094059A30500000
     
    1/4" Screw Size
    3/4"No. 35/16"0.375"0.365"0.22"BSD14Rubber/Steel0.625"5094059A54100000
    1"No. 35/16"0.375"0.341"0.21"BSD14Rubber/Steel0.625"5094059A54200000
    1 1/2"No. 35/16"0.375"0.341"0.21"BSD14Rubber/Steel0.625"5094059A54600000
    2 1/2"No. 31/4"0.375"0.341"0.21"BSD14Rubber/Steel0.625"2594059A55200000
    3"No. 35/16"0.375"0.341"0.21"BSD14Rubber/Steel0.625"2594059A55100000
     
    Corrosion-Resistant-Coated Steel
     
    No. 10 Screw Size
    3/4"No. 31/4"0.313"0.305"0.15"BSD16Rubber/Steel0.5"5090628A28400000
    1"No. 23/16"0.313"0.265"0.106"BSD16Rubber/Steel0.5"2590628A28600000
    1 1/2"No. 31/4"0.313"0.252"0.15"BSD16Rubber/Steel0.5"5094059A25100000
    1 1/2"No. 419/64"0.313"0.265"0.175"BSD16Rubber/Steel0.5"5090628A28800000
    2"No. 37/32"0.313"0.28"0.15"BSD16Rubber/Steel0.5"2590628A29000000
     
    No. 12 Screw Size
    3/4"No. 39/32"0.313"0.255"0.21"BSD14Rubber/Steel0.563"5090628A2970000
    7/8"No. 49/32"0.313"0.285"0.21"CSD24Rubber/Steel0.563"5090628A32100000
    1"No. 21/2"0.313"0.34"0.14"BSD14Rubber/Steel0.563"2590628A29600000
    1 1/4"No. 21/2"0.313"0.38"0.14"BSD14Rubber/Steel0.563"5090628A29800000
    1 1/4"No. 4.51/2"0.313"0.285"3/8"CSD24Rubber/Steel0.563"2590628A32300000
    1 1/4"No. 545/64"0.313"0.285"1/2"CSD24Rubber/Steel0.563"2590628A33100000
    1 1/2"No. 21/2"0.313"0.38"0.14"BSD14Rubber/Steel0.563"2590628A30100000
    1 1/2"No. 39/32"0.313"0.295"0.187"BSD14Rubber/Steel0.563"5094059A29900000
    1 1/2"No. 4.50.426"0.313"0.303"3/8"CSD24Rubber/Steel0.563"1090628A32600000
    1 1/2"No. 545/64"0.313"0.285"1/2"CSD24Rubber/Steel0.563"1090628A33300000
    2"No. 21/2"0.313"0.34"0.14"BSD14Rubber/Steel0.563"1090628A3030000
    2"No. 545/64"0.313"0.285"1/2"CSD24Rubber/Steel0.563"1090628A33500000
    2 1/2"No. 31/4"0.313"0.34"0.187"BSD14Rubber/Steel0.563"2590628A30500000
    3"No. 39/32"0.313"0.273"0.187"BSD14Rubber/Steel0.563"1090628A30700000
    3"No. 521/32"0.313"0.305"1/2"CSD24Rubber/Steel0.563"1090628A34000000
    4"No. 39/32"0.313"0.255"0.21"BSD14Rubber/Steel0.563"1090628A3110000
     
    1/4" Screw Size
    7/8"No. 15/16"0.375"0.341"0.048"BSD14Rubber/Steel0.625"1094059A6150000
    7/8"No. 15/16"0.375"0.38"0.048"BSD14Rubber/Steel0.563"2590628A54100000
    1"No. 35/16"0.375"0.405"0.21"BSD14Rubber/Steel0.563"2590628A54200000
    1 1/2"No. 35/16"0.375"0.405"0.21"BSD14Rubber/Steel0.563"2590628A54600000
    2"No. 35/16"0.375"0.323"0.21"BSD14Rubber/Steel0.563"2590628A64500000
    3"No. 35/16"0.375"0.36"0.21"BSD14Rubber/Steel0.625"1090628A64700000
    4"No. 35/16"0.375"0.36"0.21"BSD14Rubber/Steel0.625"1090628A65200000
     
    Corrosion-Resistant-Coated Steel with 18-8 Stainless Steel Head
     
    No. 12 Screw Size
    1"No. 21/2"0.313"0.35"0.14"BSD14Rubber/Steel0.438"2595135A21000000
    1 1/4"No. 21/2"0.313"0.35"0.14"BSD14Rubber/Steel0.438"2595135A21500000
    1 1/2"No. 21/2"0.313"0.35"0.14"BSD14Rubber/Steel0.438"2595135A22000000
    2"No. 545/64"0.313"0.35"0.5"CSD24Rubber/Steel0.438"1095135A53000000
     
    1/4" Screw Size
    7/8"No. 15/16"0.313"0.35"0.048"BSD14Rubber/Steel0.438"2595135A61500000
    1 1/8"No. 15/16"0.313"0.35"0.048"BSD14Rubber/Steel0.438"2595135A62500000
     

    Sealing Stainless Steel Flanged Hex Head Drilling Screws with Washer

    Image of Product. Front orientation. Tapping Screws. Sealing Stainless Steel Flanged Hex Head Drilling Screws with Washer.
    These corrosion-resistant screws drill, drive, and create a watertight seal all in one shot. The rubber-bonded washer compresses to keep out moisture and spreads the load to prevent crushing thin metal. Use a nutdriver or socket to turn the hex head.
    Length is measured from under the head.
    Zinc-Plated 410 Stainless Steel—With a layer of zinc for added corrosion resistance, these screws are tougher and more wear resistant than other stainless steel screws.
    Drill
    Tip
    Head
    Lg.
    Point
    Size
    Lg.
    Wd.
    Ht.
    Max. Drilling
    Thk.
    Tapping
    Screw Type
    Approx. Threads
    per In.
    Washer Material
    Washer
    OD
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated 410 Stainless Steel
     
    No. 8 Screw Size
    1/2"No. 23/16"0.25"0.211"0.098"BSD18Rubber/Stainless Steel
    0.5"2594058A105000000
    3/4"No. 23/16"0.25"0.211"0.098"BSD18Rubber/Stainless Steel
    0.5"2594058A11000000
    1"No. 23/16"0.25"0.29"0.098"BSD18Rubber/Stainless Steel
    0.5"2594058A1110000
    1 1/4"No. 23/16"0.25"0.29"0.098"BSD18Rubber/Stainless Steel
    0.5"2594058A11200000
     
    No. 10 Screw Size
    5/8"No. 31/4"0.313"0.221"0.15"BSD16Rubber/Stainless Steel
    0.5"2594058A11700000
    3/4"No. 31/4"0.313"0.221"0.15"BSD16Rubber/Stainless Steel
    0.5"2594058A12000000
    1"No. 31/4"0.313"0.221"0.15"BSD16Rubber/Stainless Steel
    0.5"2594058A12500000
    1 1/4"No. 31/4"0.313"0.3"0.15"BSD16Rubber/Stainless Steel
    0.5"2594058A1270000
    1 1/2"No. 31/4"0.313"0.3"0.15"BSD16Rubber/Stainless Steel
    0.5"2594058A12900000
    2"No. 31/4"0.313"0.3"0.15"BSD16Rubber/Stainless Steel
    0.5"2594058A13100000
     
    No. 12 Screw Size
    3/4"No. 39/32"0.313"0.256"0.187"BSD14Rubber/Stainless Steel
    0.563"2594058A29400000
    1"No. 39/32"0.313"0.256"0.187"BSD14Rubber/Stainless Steel
    0.563"2594058A29600000
    1 1/4"No. 39/32"0.313"0.256"0.187"BSD14Rubber/Stainless Steel
    0.563"1094058A2970000
    1 1/4"No. 49/32"0.313"0.32"0.21"CSD24Rubber/Stainless Steel
    0.563"1094058A2990000
    1 1/4"No. 545/64"0.313"0.256"1/2"CSD24Rubber/Stainless Steel
    0.563"1094058A30100000
    1 1/2"No. 39/32"0.313"0.256"0.187"BSD14Rubber/Stainless Steel
    0.563"1094058A2980000
    2"No. 39/32"0.313"0.32"0.187"BSD14Rubber/Stainless Steel
    0.563"1094058A3110000
    2"No. 545/64"0.313"0.32"1/2"CSD24Rubber/Stainless Steel
    0.563"594058A3210000
    2 1/2"No. 39/32"0.313"0.32"0.187"BSD14Rubber/Stainless Steel
    0.563"1094058A3150000
    3"No. 39/32"0.313"0.32"0.187"BSD14Rubber/Stainless Steel
    0.563"1094058A31900000
     
    1/4" Screw Size
    3/4"No. 35/16"0.375"0.291"0.21"BSD14Rubber/Stainless Steel
    0.625"1094058A5400000
    7/8"No. 15/16"0.313"0.291"0.048"BSD14Rubber/Stainless Steel
    0.625"1094058A54100000
    1"No. 35/16"0.375"0.291"0.21"BSD14Rubber/Stainless Steel
    0.625"1094058A5420000
    1 1/4"No. 35/16"0.375"0.291"0.21"BSD14Rubber/Stainless Steel
    0.625"1094058A5430000
    1 1/2"No. 35/16"0.375"0.291"0.21"BSD14Rubber/Stainless Steel
    0.625"1094058A54400000
    2"No. 35/16"0.375"0.291"0.21"BSD14Rubber/Stainless Steel
    0.625"1094058A54800000
    2 1/2"No. 35/16"0.375"0.291"0.21"BSD14Rubber/Stainless Steel
    0.625"1094058A55000000
    3"No. 35/16"0.375"0.291"0.21"BSD14Rubber/Stainless Steel
    0.625"1094058A55500000
    4"No. 35/16"0.375"0.355"0.21"BSD14Rubber/Stainless Steel
    0.625"594058A5590000
     
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