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    170 Products

    Tamper-Resistant Hex-Drive Stainless Steel Button Head Screws

    Image of Product. Front orientation. Rounded Head Screws. Tamper-Resistant Hex-Drive Stainless Steel Button Head Screws.
    Our most corrosion-resistant hex-drive screws for preventing unauthorized access. Also known as pin-in-hex and pin-in-socket drives, these screws have a security pin in the drive that you can only turn with a tamper-resistant hex driver. The deep six-point opening helps them withstand torque without damaging the drive. The button head looks similar to a pan head, but it's lower and more compact, taking up less space.
    Length is measured from under the head.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel can.
    Power Tool Bits—Pair these bits with your power tools to turn screws more quickly than manual tools.
    Screws
    Power Tool Bits
    Head
    Lg.
    Dia.
    Ht.
    Threading
    Tensile Strength,
    psi
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Each
    18-8 Stainless Steel
     
    4-40
    3/16"0.213"0.059"Fully Threaded70,000ASME B18.35095635A2600000007240A3100000
    1/4"0.213"0.059"Fully Threaded70,000ASME B18.35095635A261000007240A310000
    3/8"0.213"0.059"Fully Threaded70,000ASME B18.32595635A26200007240A310000
    1/2"0.213"0.059"Fully Threaded70,000ASME B18.32595635A26300007240A310000
    3/4"0.213"0.059"Fully Threaded70,000ASME B18.32595635A264000007240A310000
     
    6-32
    1/4"0.262"0.073"Fully Threaded70,000ASME B18.32595635A33700007240A330000
    3/8"0.262"0.073"Fully Threaded70,000ASME B18.32595635A338000007240A330000
    1/2"0.262"0.073"Fully Threaded70,000ASME B18.32595635A339000007240A330000
    3/4"0.262"0.073"Fully Threaded70,000ASME B18.32595635A347000007240A330000
    1"0.262"0.073"Fully Threaded70,000ASME B18.32595635A352000007240A330000
     
    8-32
    1/4"0.312"0.087"Fully Threaded70,000ASME B18.32595635A373000007240A350000
    3/8"0.312"0.087"Fully Threaded70,000ASME B18.32595635A374000007240A350000
    1/2"0.312"0.087"Fully Threaded70,000ASME B18.32595635A375000007240A350000
    3/4"0.312"0.087"Fully Threaded70,000ASME B18.32595635A383000007240A350000
    1"0.312"0.087"Fully Threaded70,000ASME B18.32595635A387000007240A350000
    1 1/2"0.312"0.087"Fully Threaded70,000ASME B18.32595635A391000007240A350000
     
    10-24
    3/8"0.361"0.101"Fully Threaded70,000ASME B18.32595635A240000007240A350000
    1/2"0.361"0.101"Fully Threaded70,000ASME B18.32595635A242000007240A350000
    3/4"0.361"0.101"Fully Threaded70,000ASME B18.32595635A245000007240A350000
    1"0.361"0.101"Fully Threaded70,000ASME B18.32595635A403000007240A350000
    1 1/2"0.361"0.101"Fully Threaded70,000ASME B18.31095635A40400007240A350000
     
    10-32
    3/8"0.361"0.101"Fully Threaded70,0002595635A41700007240A350000
    1/2"0.361"0.101"Fully Threaded70,000ASME B18.32595635A419000007240A350000
    3/4"0.361"0.101"Fully Threaded70,000ASME B18.32595635A427000007240A350000
    1"0.361"0.101"Fully Threaded70,000ASME B18.32595635A431000007240A350000
    1 1/2"0.361"0.101"Fully Threaded70,000ASME B18.31095635A43200007240A350000
     
    1/4"-20
    1/4"0.437"0.132"Fully Threaded70,000ASME B18.31095635A53500007240A350000
    3/8"0.437"0.132"Fully Threaded70,000ASME B18.31095635A53600007240A350000
    1/2"0.437"0.132"Fully Threaded70,000ASME B18.32595635A537000007240A350000
    5/8"0.437"0.132"Fully Threaded70,000ASME B18.31095635A53900007240A350000
    3/4"0.437"0.132"Fully Threaded70,000ASME B18.31095635A54000007240A350000
    1"0.437"0.132"Fully Threaded70,000ASME B18.31095635A54200007240A350000
    1 1/4"0.437"0.132"Fully Threaded70,000ASME B18.31095635A54700007240A350000
    1 1/2"0.437"0.132"Fully Threaded70,000ASME B18.31095635A55100007240A350000
    3"0.437"0.132"Fully Threaded70,000ASME B18.3595635A554000007240A350000
     
    1/4"-28
    1/2"0.437"0.132"Fully Threaded70,000ASME B18.31095635A45000007240A350000
    3/4"0.437"0.132"Fully Threaded70,000ASME B18.31095635A451000007240A350000
    1"0.437"0.132"Fully Threaded70,000ASME B18.31095635A452000007240A350000
     
    5/16"-18
    1/2"0.547"0.166"Fully Threaded70,000ASME B18.31095635A568000007240A360000
    3/4"0.547"0.166"Fully Threaded70,000ASME B18.31095635A567000007240A360000
    1"0.547"0.166"Fully Threaded70,000ASME B18.31095635A571000007240A360000
     
    3/8"-16
    1/2"0.656"0.199"Fully Threaded70,000ASME B18.31095635A594000007240A370000
    3/4"0.656"0.199"Fully Threaded70,000ASME B18.3595635A59500007240A370000
    1"0.656"0.199"Fully Threaded70,000ASME B18.3595635A59900007240A370000
    1 1/2"0.656"0.199"Fully Threaded70,000ASME B18.3595635A607000007240A370000
    2"0.656"0.199"Fully Threaded70,000ASME B18.3595635A608000007240A370000
     
    M3 × 0.5 mm
    6 mm6.2 mm1.65 mmFully Threaded80,000ASTM F879M5095635A650000007240A310000
    8 mm6.2 mm1.65 mmFully Threaded80,000ASTM F879M5095635A651000007240A310000
    10 mm5.69 mm1.65 mmFully Threaded80,000ASTM F879M5095635A652000007240A310000
    12 mm5.69 mm1.65 mmFully Threaded80,000ASTM F879M5095635A653000007240A310000
     
    M4 × 0.7 mm
    6 mm7.59 mm2.18 mmFully Threaded80,000ASTM F879M5095635A670000007240A350000
    8 mm7.59 mm2.18 mmFully Threaded80,000ASTM F879M2595635A67100007240A350000
    10 mm7.59 mm2.18 mmFully Threaded80,000ASTM F879M2595635A67200007240A350000
    12 mm7.59 mm2.18 mmFully Threaded80,000ASTM F879M2595635A67300007240A350000
    16 mm7.59 mm2.18 mmFully Threaded80,000ASTM F879M2595635A67500007240A350000
    20 mm7.59 mm2.18 mmFully Threaded80,000ASTM F879M2595635A811000007240A350000
     
    M5 × 0.8 mm
    8 mm9.5 mm2.74 mmFully Threaded80,000ASTM F879M2595635A690000007240A350000
    10 mm9.5 mm2.74 mmFully Threaded80,000ASTM F879M2595635A691000007240A350000
    12 mm9.5 mm2.74 mmFully Threaded80,000ASTM F879M2595635A692000007240A350000
    16 mm9.5 mm2.74 mmFully Threaded80,000ASTM F879M2595635A694000007240A350000
    20 mm9.5 mm2.74 mmFully Threaded80,000ASTM F879M2595635A696000007240A350000
     
    M6 × 1 mm
    10 mm10.49 mm3.28 mmFully Threaded80,000ASTM F879M2595635A710000007240A350000
    12 mm10.49 mm3.28 mmFully Threaded80,000ASTM F879M2595635A711000007240A350000
    16 mm10.49 mm3.28 mmFully Threaded80,000ASTM F879M1095635A71300007240A350000
    20 mm10.49 mm3.28 mmFully Threaded80,000ASTM F879M1095635A71500007240A350000
    25 mm10.49 mm3.28 mmFully Threaded80,000ASTM F879M1095635A71600007240A350000
    30 mm10.49 mm3.28 mmFully Threaded80,000ASTM F879M1095635A81200007240A350000
     
    M8 × 1.25 mm
    12 mm14 mm4.39 mmFully Threaded80,000ASTM F879M1095635A730000007240A360000
    16 mm14 mm4.39 mmFully Threaded80,000ASTM F879M1095635A732000007240A360000
    20 mm14 mm4.39 mmFully Threaded80,000ASTM F879M1095635A734000007240A360000
    25 mm14 mm4.39 mmFully Threaded80,000ASTM F879M1095635A735000007240A360000
    30 mm14 mm4.39 mmFully Threaded80,000ASTM F879M1095635A736000007240A360000
     
    M10 × 1.5 mm
    20 mm17.5 mm5.49 mmFully Threaded80,000ASTM F879M595635A75000007240A370000
    25 mm17.5 mm5.49 mmFully Threaded80,000ASTM F879M595635A751000007240A370000
    30 mm17.5 mm5.49 mmFully Threaded80,000ASTM F879M595635A752000007240A370000
     

    Tamper-Resistant Hex-Drive Stainless Steel Flat Head Screws

    Image of Product. Front orientation. Contains Annotated, MultipleImages. Flat Head Screws. Tamper-Resistant Hex-Drive Stainless Steel Flat Head Screws.
    Prevent unauthorized access and damage to components. These screws have a security pin in the drive that you can only turn with a tamper-resistant hex driver. Also known as pin-in-hex and pin-in-socket drives, the deep six-point opening helps them withstand torque without damaging the drive. Made of stainless steel, they won't rust or corrode when exposed to moisture and chemicals.
    Length is measured from the top of the head.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they don't hold up to the harsh chemicals that 316 stainless steel can.
    Standard Profile—Standard-profile heads are the most common choice for flat head screws.
    Undercut Profile—About a third thinner than standard heads, the undercut profile fits into shallow holes in thin material. The thin head also has more threading on the shaft, so they're often used to keep short screws from coming loose.
    Power Tool Bits—Pair these bits with your power tools to turn screws more quickly than manual tools.
    Screws
    Power Tool Bits
    Head
    Lg.
    Countersink
    Angle
    Flat Head
    Profile
    Dia.
    Ht.
    Threading
    Tensile Strength,
    psi
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Each
    18-8 Stainless Steel
     
    4-40
    1/4"82°
    Standard
    0.255"0.083"Fully Threaded70,000ASME B18.32590517A110000007240A3100000
    3/8"82°
    Standard
    0.255"0.083"Fully Threaded70,000ASME B18.32590517A12000007240A310000
    1/2"82°
    Standard
    0.255"0.083"Fully Threaded70,000ASME B18.32590517A13000007240A310000
     
    6-32
    1/4"82°
    Undercut
    0.307"0.059"Fully Threaded70,000ASME B18.32590517A14000007240A330000
    3/8"82°
    Standard
    0.307"0.097"Fully Threaded70,000ASME B18.32590517A11100007240A330000
    1/2"82°
    Standard
    0.307"0.097"Fully Threaded70,000ASME B18.32590517A11200007240A330000
    3/4"82°
    Standard
    0.307"0.097"Fully Threaded70,000ASME B18.32590517A11300007240A330000
     
    8-32
    3/8"82°
    Standard
    0.359"0.112"Fully Threaded70,000ASME B18.32590517A21100007240A330000
    1/2"82°
    Standard
    0.359"0.112"Fully Threaded70,000ASME B18.32590517A21200007240A330000
    3/4"82°
    Standard
    0.359"0.112"Fully Threaded70,000ASME B18.32590517A213000007240A330000
    1"82°
    Standard
    0.359"0.112"Fully Threaded70,000ASME B18.32590517A214000007240A330000
     
    10-24
    3/8"82°
    Standard
    0.411"0.127"Fully Threaded70,000ASME B18.32590517A311000007240A350000
    1/2"82°
    Standard
    0.411"0.127"Fully Threaded70,000ASME B18.32590517A312000007240A350000
    3/4"82°
    Standard
    0.411"0.127"Fully Threaded70,000ASME B18.32590517A313000007240A350000
    1"82°
    Standard
    0.411"0.127"Fully Threaded70,000ASME B18.31090517A31400007240A350000
     
    10-32
    3/8"82°
    Standard
    0.411"0.127"Fully Threaded70,000ASME B18.32590517A411000007240A350000
    1/2"82°
    Standard
    0.411"0.127"Fully Threaded70,000ASME B18.32590517A412000007240A350000
    3/4"82°
    Standard
    0.411"0.127"Fully Threaded70,000ASME B18.32590517A413000007240A350000
    1"82°
    Standard
    0.411"0.127"Fully Threaded70,000ASME B18.31090517A41400007240A350000
    1 1/2"82°
    Standard
    0.411"0.127"Fully Threaded70,000ASME B18.31090517A41500007240A350000
     
    1/4"-20
    1/2"82°
    Standard
    0.531"0.161"Fully Threaded70,000ASME B18.31090517A51100007240A350000
    5/8"82°
    Standard
    0.531"0.161"Fully Threaded70,000ASME B18.31090517A51200007240A350000
    3/4"82°
    Standard
    0.531"0.161"Fully Threaded70,000ASME B18.31090517A51300007240A350000
    1"82°
    Standard
    0.531"0.161"Fully Threaded70,000ASME B18.31090517A51400007240A350000
    1 1/4"82°
    Standard
    0.531"0.161"Fully Threaded70,000ASME B18.31090517A515000007240A350000
    1 1/2"82°
    Standard
    0.531"0.161"Fully Threaded70,000ASME B18.31090517A516000007240A350000
     
    M3 × 0.5 mm
    6 mm90°
    Standard
    6.71 mm1.85 mmFully Threaded80,000ASTM F879M5090517A150000007240A310000
    8 mm90°
    Standard
    6.71 mm1.85 mmFully Threaded80,000ASTM F879M5090517A160000007240A310000
    10 mm90°
    Standard
    6.71 mm1.85 mmFully Threaded80,000ASTM F879M5090517A170000007240A310000
    12 mm90°
    Standard
    6.71 mm1.85 mmFully Threaded80,000ASTM F879M5090517A180000007240A310000
     
    M4 × 0.7 mm
    6 mm90°
    Standard
    8.94 mm2.48 mmFully Threaded80,000ASTM F879M2590517A19000007240A350000
    8 mm90°
    Standard
    8.94 mm2.48 mmFully Threaded80,000ASTM F879M2590517A21000007240A350000
    10 mm90°
    Standard
    8.94 mm2.48 mmFully Threaded80,000ASTM F879M2590517A22000007240A350000
    12 mm90°
    Standard
    8.94 mm2.48 mmFully Threaded80,000ASTM F879M2590517A23000007240A350000
    16 mm90°
    Standard
    8.94 mm2.48 mmFully Threaded80,000ASTM F879M2590517A24000007240A350000
     
    M5 × 0.8 mm
    8 mm90°
    Standard
    11.2 mm3.10 mmFully Threaded80,000ASTM F879M2590517A25000007240A350000
    10 mm90°
    Standard
    11.2 mm3.10 mmFully Threaded80,000ASTM F879M2590517A260000007240A350000
    12 mm90°
    Standard
    11.2 mm3.10 mmFully Threaded80,000ASTM F879M2590517A270000007240A350000
    16 mm90°
    Standard
    11.2 mm3.10 mmFully Threaded80,000ASTM F879M2590517A280000007240A350000
    20 mm90°
    Standard
    11.2 mm3.10 mmFully Threaded80,000ASTM F879M2590517A290000007240A350000
     
    M6 × 1 mm
    12 mm90°
    Standard
    13.44 mm3.72 mmFully Threaded80,000ASTM F879M1090517A31000007240A350000
    16 mm90°
    Standard
    13.44 mm3.72 mmFully Threaded80,000ASTM F879M1090517A32000007240A350000
    20 mm90°
    Standard
    13.44 mm3.72 mmFully Threaded80,000ASTM F879M1090517A33000007240A350000
    25 mm90°
    Standard
    13.44 mm3.72 mmFully Threaded80,000ASTM F879M1090517A34000007240A350000
    30 mm90°
    Standard
    13.44 mm3.72 mmFully Threaded80,000ASTM F879M1090517A35000007240A350000
     
    M8 × 1.25 mm
    16 mm90°
    Standard
    17.91 mm4.95 mmFully Threaded80,000ASTM F879M1090517A360000007240A360000
    20 mm90°
    Standard
    17.91 mm4.95 mmFully Threaded80,000ASTM F879M1090517A370000007240A360000
    25 mm90°
    Standard
    17.91 mm4.95 mmFully Threaded80,000ASTM F879M1090517A380000007240A360000
    30 mm90°
    Standard
    17.91 mm4.95 mmFully Threaded80,000ASTM F879M1090517A390000007240A360000
     

    Tamper-Resistant Hex-Drive Steel Button Head Screws

    Image of Product. Front orientation. Rounded Head Screws. Tamper-Resistant Hex-Drive Steel Button Head Screws.
    Our strongest hex-drive screws for deterring unauthorized access. Also known as pin-in-hex and pin-in-socket drives, these screws have a security pin in the drive that you can only turn with a tamper-resistant hex driver. The deep six-point opening helps them withstand torque without damaging the drive. Made of alloy steel, they have nearly twice the tensile strength of other screws. The button head looks similar to a pan head, but it's lower and more compact, taking up less space.
    Length is measured from under the head.
    Black-Oxide Alloy Steel—Typically chosen for their appearance, these screws have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    Power Tool Bits—Pair these bits with your power tools to turn screws more quickly than manual tools.
    Screws
    Power Tool Bits
    Head
    Lg.
    Dia.
    Ht.
    Threading
    Tensile Strength,
    psi
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Each
    Black-Oxide Alloy Steel
     
    4-40
    3/16"0.213"0.059"Fully Threaded130,000ASME B18.3, ASTM F8355090484A1600000007240A3100000
    1/4"0.213"0.059"Fully Threaded130,000ASME B18.3, ASTM F8355090484A161000007240A310000
    3/8"0.213"0.059"Fully Threaded130,000ASME B18.3, ASTM F8355090484A162000007240A310000
    1/2"0.213"0.059"Fully Threaded130,000ASME B18.3, ASTM F8355090484A163000007240A310000
    3/4"0.213"0.059"Fully Threaded130,000ASME B18.3, ASTM F8355090484A164000007240A310000
     
    6-32
    1/4"0.262"0.073"Fully Threaded130,000ASME B18.3, ASTM F8355090484A182000007240A330000
    3/8"0.262"0.073"Fully Threaded130,000ASME B18.3, ASTM F8355090484A183000007240A330000
    1/2"0.262"0.073"Fully Threaded130,000ASME B18.3, ASTM F8355090484A184000007240A330000
    3/4"0.262"0.073"Fully Threaded130,000ASME B18.3, ASTM F8355090484A185000007240A330000
    1"0.262"0.073"Fully Threaded130,000ASME B18.3, ASTM F8355090484A186000007240A330000
     
    8-32
    1/4"0.312"0.087"Fully Threaded130,000ASME B18.3, ASTM F8355090484A135000007240A350000
    3/8"0.312"0.087"Fully Threaded130,000ASME B18.3, ASTM F8355090484A137000007240A350000
    1/2"0.312"0.087"Fully Threaded130,000ASME B18.3, ASTM F8352590484A139000007240A350000
    3/4"0.312"0.087"Fully Threaded130,000ASME B18.3, ASTM F8352590484A143000007240A350000
    1"0.312"0.087"Fully Threaded130,000ASME B18.3, ASTM F8352590484A145000007240A350000
     
    10-24
    3/8"0.361"0.101"Fully Threaded130,000ASME B18.3, ASTM F8352590484A240000007240A350000
    1/2"0.361"0.101"Fully Threaded130,000ASME B18.3, ASTM F8352590484A24200007240A350000
    5/8"0.361"0.101"Fully Threaded130,000ASME B18.3, ASTM F8352590484A24400007240A350000
    3/4"0.361"0.101"Fully Threaded130,000ASME B18.3, ASTM F8352590484A24500007240A350000
    1"0.361"0.101"Fully Threaded130,000ASME B18.3, ASTM F8352590484A24700007240A350000
     
    10-32
    1/4"0.361"0.101"Fully Threaded130,000ASME B18.3, ASTM F8355090484A255000007240A350000
    3/8"0.361"0.101"Fully Threaded130,000ASME B18.3, ASTM F8355090484A256000007240A350000
    1/2"0.361"0.101"Fully Threaded130,000ASME B18.3, ASTM F8352590484A25700007240A350000
    3/4"0.361"0.101"Fully Threaded130,000ASME B18.3, ASTM F8352590484A26100007240A350000
    1"0.361"0.101"Fully Threaded130,000ASME B18.3, ASTM F8352590484A263000007240A350000
     
    12-24
    1/2"0.413"0.114"Fully Threaded130,000ASME B18.3, ASTM F8352590484A26900007240A350000
     
    1/4"-20
    3/8"0.437"0.132"Fully Threaded130,000ASME B18.3, ASTM F8352590484A535000007240A350000
    1/2"0.437"0.132"Fully Threaded130,000ASME B18.3, ASTM F8352590484A537000007240A350000
    5/8"0.437"0.132"Fully Threaded130,000ASME B18.3, ASTM F8352590484A539000007240A350000
    3/4"0.437"0.132"Fully Threaded130,000ASME B18.3, ASTM F8352590484A540000007240A350000
    1"0.437"0.132"Fully Threaded130,000ASME B18.3, ASTM F8352590484A542000007240A350000
    1 1/2"0.437"0.132"Fully Threaded130,000ASME B18.3, ASTM F8352590484A547000007240A350000
     
    5/16"-18
    3/4"0.547"0.166"Fully Threaded130,000ASME B18.3, ASTM F8351090484A55500007240A360000
    1"0.547"0.166"Fully Threaded130,000ASME B18.3, ASTM F8351090484A557000007240A360000
     
    3/8"-16
    3/4"0.656"0.199"Fully Threaded130,000ASME B18.3, ASTM F8351090484A569000007240A370000
    1"0.656"0.199"Fully Threaded130,000ASME B18.3, ASTM F8351090484A571000007240A370000
     
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