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Industrial Hardware and Specialties is classified as an ESSENTIAL business and is fully operational.

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Concrete

hexhead
flathead

Slotted Indented Hex Washer Head, Hi-Low, Notched Threads, Diamond Point, Blue Ceramic Coating

  • Notched threads for cutting into concrete, brick and cement block
  • Hi-Low thread pattern creates higher pullout tolerances
  • Diamond point design cuts and clears debris during installation for better thread engagement
  • Blue ceramic coating exceeds 500/hrs. salt spray resistance
  • ACQ compatible
  • Meets ASTM A 510 for carbon steel manufacturing
  • Miami-Dade County Product Control Approved. NOA-15-0930.14
Installation
Attaches wood or metal to concrete, brick, cement block or masonry.
hexhead
Pre-drill a hole using a carbide masonry drill bit a minimum 1/4" deeper than than the screw length you wish to install. Install screw with a proper sized hex drive bit Making sure fastener head sits flush with work surface. Do not over torque as head may snap or cause stripping of recess. To be installed in masonary applications such as concrete, brick, or cement blocks.

Phillips Flat Head, Hi-Low, Notched Threads, Diamond Point, Blue Ceramic Coating

  • Notched threads for cutting into concrete, brick and cement block
  • Hi-Low thread pattern creates higher pullout tolerances
  • Diamond point design cuts and clears debris during installation for better thread engagement
  • Blue ceramic coating exceeds 500/hrs. salt spray resistance
  • ACQ compatible
  • Meets ASTM A 510 for carbon steel manufacturing
  • Miami-Dade County Product Control Approved. NOA-15-0930.14
Installation
Attaches wood or metal to concrete, brick, cement block or masonry.
flathead
Pre-drill a hole using a carbide masonry drill bit a minimum 1/4" deeper than than the screw length you wish to install. Install screw with proper sized phillips drive bit Making sure fastener head sits flush with work surface. Do not over torque as head may snap or cause stripping of recess.
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  1. CF452, concrete screws, 1/4 x 3-1/4 concrete fasteners

    Sku #: 355-CF452

    Phillips Flat Head 1/4 x 3-1/4 Hi-Low Notched Threads Diamond Point Concrete Screws
    Special Price $183.28 Regular Price $247.42
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  2. CF352, concrete screws, 3/16 x 3-1/4 concrete fasteners

    Sku #: 355-CF352

    Phillips Flat Head 3/16 x 3-1/4 Hi-Low Notched Threads Diamond Point Concrete Screws
    Special Price $196.53 Regular Price $265.31
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  3. CH452, concrete screws, 1/4 x 3-1/4 concrete fasteners

    Sku #: 355-CH452

    Indented Slotted Hex Washer 5/16 AF Head 1/4 x 3-1/4 Diamond Point Concrete Screws
    Special Price $186.09 Regular Price $251.22
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  4. CH352, concrete screws, 3/16 x 3-1/4 concrete fasteners

    Sku #: 355-CH352

    Indented Slotted Hex Washer 1/4 AF Head 3/16 x 3-1/4 Diamond Point Concrete Screws
    Special Price $186.20 Regular Price $251.37
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  1. Length (in.) 3-1/4 Remove This Item
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Length (in.)
  1. 1-1/4 4 items
  2. 1-3/4 4 items
  3. 2-1/4 4 items
  4. 2-3/4 4 items
  5. 3-1/4 4 items
  6. 3-3/4 4 items
  7. 4 4 items
Show more
Head Type
  1. Flat Head 2 items
  2. Hex Washer Head 2 items
Drive Type
  1. Indented Slotted 2 items
  2. Phillips 2 items
Drive Size
  1. #2 1 item
  2. #3 1 item
  3. 1/4 1 item
  4. 5/16 1 item
Diameter Ø TPI
  1. 3/16 2 items
  2. 1/4 2 items
Box Size
  1. 1000 2 items
  2. 1500 2 items