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  • M3 Allen CSK Screw for Precision Fastening

    M3 Allen CSK Screw, Countersunk Socket Head, 10.9 High Tensile Black, 6-50mm, DIN 7991

    DIN 7991 · 10.9 · Black · 12 lengths 6–50 mm · packs 10–100
    From Rs. 77.00
    Rs. 115.00
    From Rs. 77.00
    Rs. 3.46/pc at 100 pcs
    More sizes available
    Deep accurate socket for high torque wrenching. Knurls for easier handling. Marked for easier identification. Head with increased bearing area for greater loading carrying capacity. Precision forged for symmetrical grain flow maximum strength. Elliptical fillet doubles fatigue life at critical head-shank juncture. “3-r” (radiused-root...
    From Rs. 77.00
    Rs. 115.00
    From Rs. 77.00
  • M3 CSK Screw Dimensions for Precise Fit

    M3 SS 304 Allen CSK Screw, Stainless Steel Countersunk Socket Head, 6-25mm, DIN 7991

    DIN 7991 · 304 · Silver · 7 lengths 6–25 mm · packs 10–100
    From Rs. 60.00
    Rs. 89.00
    From Rs. 60.00
    Rs. 1.75/pc at 100 pcs
    More sizes available
    Stainless Steel 304 makes these Screws durable, rust-resistance and high in strength. Suitable for use in aeromodelling, RC Airplanes, Multirotors ( quadcopters, Hex Copters, Octa Copters) , CNC machines, 3D Printers, robotics, and other engineering applications For projects that require precise, flush fastening, M3...
    From Rs. 60.00
    Rs. 89.00
    From Rs. 60.00
  • M4 Allen CSK Screw for Precision Fastening

    M4 Allen CSK Screw, Countersunk Socket Head, 10.9 High Tensile Black, 6-50mm, DIN 7991

    DIN 7991 · 10.9 · Black · 12 lengths 6–50 mm · packs 10–100
    From Rs. 73.00
    Rs. 109.00
    From Rs. 73.00
    Rs. 3.08/pc at 100 pcs
    More sizes available
    Deep accurate socket for high torque wrenching. Knurls for easier handling. Marked for easier identification. Head with increased bearing area for greater loading carrying capacity. Precision forged for symmetrical grain flow maximum strength. Elliptical fillet doubles fatigue life at critical head-shank juncture. “3-r” (radiused-root...
    From Rs. 73.00
    Rs. 109.00
    From Rs. 73.00
  • M4 CSK Screw Dimensions for Precise Fit

    M4 SS 304 Allen CSK Screw, Stainless Steel Countersunk Socket Head, 6-30mm, DIN 7991

    DIN 7991 · 304 · Silver · 8 lengths 6–30 mm · packs 10–100
    From Rs. 66.00
    Rs. 99.00
    From Rs. 66.00
    Rs. 2.42/pc at 100 pcs
    More sizes available
    Stainless Steel 304 makes these Screws durable, rust-resistance and high in strength. Suitable for use in aeromodelling, RC Airplanes, Multirotors ( quadcopters, Hex Copters, Octa Copters) , CNC machines, 3D Printers, robotics, and other engineering applications For projects that require precise, flush fastening, M4...
    From Rs. 66.00
    Rs. 99.00
    From Rs. 66.00
  • M6 Allen CSK Screw for Precision Fastening

    M6 Allen CSK Screw, Countersunk Socket Head, 10.9 High Tensile Black, 8-50mm, DIN 7991

    DIN 7991 · 10.9 · Black · 11 lengths 8–50 mm · packs 10–100
    From Rs. 82.00
    Rs. 123.00
    From Rs. 82.00
    Rs. 4.00/pc at 100 pcs
    More sizes available
    Deep accurate socket for high torque wrenching. Knurls for easier handling. Marked for easier identification. Head with increased bearing area for greater loading carrying capacity. Precision forged for symmetrical grain flow maximum strength. Elliptical fillet doubles fatigue life at critical head-shank juncture. “3-r” (radiused-root...
    From Rs. 82.00
    Rs. 123.00
    From Rs. 82.00
  • M5 Allen CSK Screw for Precision Fastening

    M5 Allen CSK Screw, Countersunk Socket Head, 10.9 High Tensile Black, 8-50mm, DIN 7991

    DIN 7991 · 10.9 · Black · 11 lengths 8–50 mm · packs 10–100
    From Rs. 77.00
    Rs. 115.00
    From Rs. 77.00
    Rs. 3.48/pc at 100 pcs
    More sizes available
    Deep accurate socket for high torque wrenching. Knurls for easier handling. Marked for easier identification. Head with increased bearing area for greater loading carrying capacity. Precision forged for symmetrical grain flow maximum strength. Elliptical fillet doubles fatigue life at critical head-shank juncture. “3-r” (radiused-root...
    From Rs. 77.00
    Rs. 115.00
    From Rs. 77.00
  • M6 CSK Screw Dimensions for Precise Fit

    M6 SS 304 Allen CSK Screw, Stainless Steel Countersunk Socket Head, 8-30mm, DIN 7991

    DIN 7991 · 304 · Silver · 7 lengths 8–30 mm · packs 10–100
    From Rs. 89.00
    Rs. 133.00
    From Rs. 89.00
    Rs. 4.69/pc at 100 pcs
    More sizes available
    Stainless Steel 304 makes these Screws durable, rust-resistance and high in strength. Suitable for use in aeromodelling, RC Airplanes, Multirotors ( quadcopters, Hex Copters, Octa Copters) , CNC machines, 3D Printers, robotics, and other engineering applications For projects that require precise, flush fastening, M6...
    From Rs. 89.00
    Rs. 133.00
    From Rs. 89.00
  • M5 CSK Screw Dimensions for Precise Fit

    M5 SS 304 Allen CSK Screw, Stainless Steel Countersunk Socket Head, 6-30mm, DIN 7991

    DIN 7991 · 304 · Silver · 8 lengths 6–30 mm · packs 10–100
    From Rs. 73.00
    Rs. 110.00
    From Rs. 73.00
    Rs. 3.12/pc at 100 pcs
    More sizes available
    Stainless Steel 304 makes these Screws durable, rust-resistance and high in strength. Suitable for use in aeromodelling, RC Airplanes, Multirotors ( quadcopters, Hex Copters, Octa Copters) , CNC machines, 3D Printers, robotics, and other engineering applications For projects that require precise, flush fastening, M5...
    From Rs. 73.00
    Rs. 110.00
    From Rs. 73.00
  • M8 Allen CSK Screw for Precision Fastening

    M8 Allen CSK Screw, Countersunk Socket Head, 10.9 High Tensile Black, 10-50mm, DIN 7991

    DIN 7991 · 10.9 · Black · 10 lengths 10–50 mm · packs 10–100
    From Rs. 112.00
    Rs. 168.00
    From Rs. 112.00
    Rs. 7.02/pc at 100 pcs
    More sizes available
    Deep accurate socket for high torque wrenching. Knurls for easier handling. Marked for easier identification. Head with increased bearing area for greater loading carrying capacity. Precision forged for symmetrical grain flow maximum strength. Elliptical fillet doubles fatigue life at critical head-shank juncture. “3-r” (radiused-root...
    From Rs. 112.00
    Rs. 168.00
    From Rs. 112.00

About this range

Allen CSK screws have a countersunk head with a hex socket, so the head sits flush in a countersunk hole. DIN 7991, ISO metric coarse thread.

  • 10.9 high tensile black: M3, M4 (6-50mm), M5, M6 (8-50mm), M8 (10-50mm)
  • SS 304 stainless: M3 (6-25mm), M4, M5 (6-30mm), M6 (8-30mm)

Packs of 10 to 100. Pick black or SS 304, then M size and length. For a Phillips drive, see Phillips CSK screws M3-M5.

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