Fastener Products

Product Details

Drill Screw　HEX／HEX-S

Hex Head
  • Has a high torque transmission that reduces the risk of loosening.
  • There is little wobbling during installation, and the penetration and installation work can be completed in one go.
  • Has a high torque transmission due to its Hex Head design that ensures proper installation.
  • Made of steel products are coated with trivalent chromate which is eco-friendly and corrosion resistant.
  • Corrosion protection coating is used for made of stainless steel products.
［Application］
Frame Joining / Roofing Material Mounting / Metal Fittings and Steel Frame Joining / Siding Mounting, etc.

・Press the drill point vertically on the place to be installed, then use a power tool to press and slowly rotate the screw.

●Please select the suitable product after confirming the thickness of the fixture.
●Please follow the size shown in the catalog to choose a recommended screwdriver bit.
●Please install at the rotation speed according to the size.
●Install the screw vertically to the fixture.
●Stop the rotation immediately after tightening is completed. Excessive torque can cause problems such as instability in the product fit and head skipping.

Working length explanatory diagram

In order to securely fasten the Drill Screw, the thread must completely protrude 3 pitches from the base steel plate. Therefore, the max. working length should be calculated by the length below the neck (L) -the length of the drill point (Ln) -3 pitches, and then select the suitable drill screw based on the working length. ＊The min. working length does not include the base steel plate.

※Caution: When installing the Drill Screw, it may not be possible to secure the specified working length depending on the condition of the jobsite. Please use it after checking the actual situation of the site.

・Blister pack
HEX-P/HEX-SP type

HEX TYPE: STEEL / TRIVALENT CHROMATE COATING

Open chart in PDF

サイズ表をPDFで開く
Unit：mm Unit：pc
d Item no. L (b) Recommended
board thickness		 Lg1 Lg2 Ln Head Recommended
screwdriver bit		 Qty・per
dk k s Box Carton
4 HEX-4×13 13 7 1.2〜3.2 − 3.2 5.5 9.0 3.3 7.0 KTB-7 1,000 10,000
4 HEX-4×16 16 10 1.2〜3.2 − 6.0 5.5 9.0 3.3 7.0 KTB-7 800 8,000
4 HEX-4×19 19 13 1.2〜3.2 − 9.0 5.5 9.0 3.3 7.0 KTB-7 700 7,000
4 HEX-4×25 25 19 1.2〜3.2 − 15.0 5.5 9.0 3.3 7.0 KTB-7 500 5,000
5 HEX-5×16 16 9 1.6〜4.5 − 4.5 6.5 10.7 5.2 8.0 KTB-8 500 5,000
5 HEX-5×19 19 12 1.6〜4.5 − 7.5 6.5 10.7 5.2 8.0 KTB-8 500 5,000
5 HEX-5×25 ◆ 25 18 1.6〜4.5 − 13.5 6.5 10.7 5.2 8.0 KTB-8 400 4,000
5 HEX-5×30 ◆ 30 23 1.6〜4.5 − 18.5 6.5 10.7 5.2 8.0 KTB-8 250 2,500
5 HEX-5×35 ◆ 35 28 1.6〜4.5 − 23.5 6.5 10.7 5.2 8.0 KTB-8 250 2,500
5 HEX-5×40 ◆ 40 33 1.6〜4.5 − 28.5 6.5 10.7 5.2 8.0 KTB-8 200 2,000
5 HEX-5×45 ◆ 45 38 1.6〜4.5 − 33.5 6.5 10.7 5.2 8.0 KTB-8 200 2,000
5 HEX-5×50 ◆ 50 43 1.6〜4.5 − 38.5 6.5 10.7 5.2 8.0 KTB-8 200 2,000
5 HEX-5×55 ◆ 55 48 1.6〜4.5 − 43.5 6.5 10.7 5.2 8.0 KTB-8 200 2,000
5 HEX-5×60 ◆ 60 53 1.6〜4.5 − 48.5 6.5 10.7 5.2 8.0 KTB-8 150 1,500
5 HEX-5×70 ◆ 70 53 1.6〜4.5 12.0 58.5 6.5 10.7 5.2 8.0 KTB-8 100 1,000
6 HEX-6×19 ◆ 19 11 2.3〜4.5 − 6.0 7.5 13.0 6.2 9.6 KTB-9.6 300 3,000
6 HEX-6×25 ◆ 25 16 2.3〜6.0 − 11.0 8.5 13.0 6.2 9.6 KTB-9.6 200 2,000
6 HEX-6×30 ◆ 30 21 2.3〜6.0 − 16.0 8.5 13.0 6.2 9.6 KTB-9.6 200 2,000
6 HEX-6×35 ◆ 35 26 2.3〜6.0 − 21.0 8.5 13.0 6.2 9.6 KTB-9.6 200 2,000
6 HEX-6×40 ◆ 40 31 2.3〜6.0 − 26.0 8.5 13.0 6.2 9.6 KTB-9.6 150 1,500
6 HEX-6×45 ◆ 45 36 2.3〜6.0 − 31.0 8.5 13.0 6.2 9.6 KTB-9.6 150 1,500
6 HEX-6×50 ◆ 50 41 2.3〜6.0 − 36.0 8.5 13.0 6.2 9.6 KTB-9.6 100 1,000
6 HEX-6×60 ◆ 60 51 2.3〜6.0 − 46.0 8.5 13.0 6.2 9.6 KTB-9.6 100 1,000
6 HEX-6×70 ◆ 70 61 2.3〜6.0 − 56.0 8.5 13.0 6.2 9.6 KTB-9.6 100 1,000
6 HEX-6×80 ◆ 80 61 2.3〜6.0 12.0 66.0 8.5 13.0 6.2 9.6 KTB-9.6 100 1,000
6 HEX-6×90 ◆ 90 61 2.3〜6.0 22.0 76.0 8.5 13.0 6.2 9.6 KTB-9.6 100 1,000
6 HEX-6×95 ◆ 95 61 2.3〜6.0 27.0 81.0 8.5 13.0 6.2 9.6 KTB-9.6 100 500
6 HEX-6×105 ◆ 105 61 2.3〜6.0 37.0 91.0 8.5 13.0 6.2 9.6 KTB-9.6 100 500
6 HEX-6×115 ◆ 115 61 2.3〜6.0 47.0 101.0 8.5 13.0 6.2 9.6 KTB-9.6 100 500
6 HEX-6×135 ◆ 135 61 2.3〜6.0 67.0 121.0 8.5 13.0 6.2 9.6 KTB-9.6 100 500
6 HEX-6×150 ◆ 150 61 2.3〜6.0 82.0 136.0 8.5 13.0 6.2 9.6 KTB-9.6 100 500
6 HEX-6×170 ◆ 170 61 2.3〜6.0 102.0 156.0 8.5 13.0 6.2 9.6 KTB-9.6 100 500
8 ※¹ HEX-8×35 ※ 35 20 2.3〜6.0 − 16.0 15.0 16.0 7.4 12 ※² 100 1,000
8 ※¹ HEX-8×45 ※ 45 30 2.3〜6.0 − 26.0 15.0 16.0 7.4 12 ※² 100 1,000
8 ※¹ HEX-8×55 ※ 55 33 2.3〜6.0 − 29.0 21.5 16.0 7.4 12 ※² 100 1,000
8 ※¹ HEX-8×65 ※ 65 43 2.3〜6.0 − 39.0 21.5 16.0 7.4 12 ※² 50 500
◆V Fluted Thread
※ Made to order product.
※¹ When installing to plate of thickness 6.0 mm, use the power tool at a rotation speed of 1,700 rpm or less.
※² Please use a bit for hexagonal head with a width across flats of 12 mm during installation.
HEX-S TYPE: STAINLESS STEEL　SUS410　CORROSION PROTECTION COATING
サイズ表をPDFで開く

Open chart in PDF

Unit：mm Unit：pc
d Item no. L (b) Recommended
board thickness		 Lg1 Lg2 Ln Head Recommended
screwdriver bit		 Qty・per
dk k s Box Carton
5 HEX-5x16S 16 9 1.6〜4.5 − 4.5 6.5 10.7 5.2 8.0 KTB-8 500 5,000
5 HEX-5x19S 19 12 1.6〜4.5 − 7.5 6.5 10.7 5.2 8.0 KTB-8 500 5,000
5 HEX-5x25S ◆ 25 18 1.6〜4.5 − 13.5 6.5 10.7 5.2 8.0 KTB-8 400 4,000
5 HEX-5x30S ◆ 30 23 1.6〜4.5 − 18.5 6.5 10.7 5.2 8.0 KTB-8 250 2,500
5 HEX-5x35S ◆ 35 28 1.6〜4.5 − 23.5 6.5 10.7 5.2 8.0 KTB-8 250 2,500
5 HEX-5x40S ◆ 40 33 1.6〜4.5 − 28.5 6.5 10.7 5.2 8.0 KTB-8 200 2,000
5 HEX-5x45S ◆ 45 38 1.6〜4.5 − 33.5 6.5 10.7 5.2 8.0 KTB-8 200 2,000
5 HEX-5x50S ◆ 50 43 1.6〜4.5 − 38.5 6.5 10.7 5.2 8.0 KTB-8 200 2,000
5 HEX-5x55S ◆ 55 48 1.6〜4.5 − 43.5 6.5 10.7 5.2 8.0 KTB-8 200 2,000
5 HEX-5x60S ◆ 60 53 1.6〜4.5 − 48.5 6.5 10.7 5.2 8.0 KTB-8 150 1,500
5 HEX-5x70S ◆ 70 53 1.6〜4.5 12.0 58.5 6.5 10.7 5.2 8.0 KTB-8 100 1,000
6 HEX-6x19S ◆ 19 11 2.3〜4.5 − 6.0 7.5 13.0 6.2 9.6 KTB-9.6 300 3,000
6 HEX-6x25S ◆ 25 16 2.3〜6.0 − 11.0 8.5 13.0 6.2 9.6 KTB-9.6 200 2,000
6 HEX-6x30S ◆ 30 21 2.3〜6.0 − 16.0 8.5 13.0 6.2 9.6 KTB-9.6 200 2,000
6 HEX-6x35S ◆ 35 26 2.3〜6.0 − 21.0 8.5 13.0 6.2 9.6 KTB-9.6 200 2,000
6 HEX-6x40S ◆ 40 31 2.3〜6.0 − 26.0 8.5 13.0 6.2 9.6 KTB-9.6 150 1,500
6 HEX-6x45S ◆ 45 36 2.3〜6.0 − 31.0 8.5 13.0 6.2 9.6 KTB-9.6 150 1,500
6 HEX-6x50S ◆ 50 41 2.3〜6.0 − 36.0 8.5 13.0 6.2 9.6 KTB-9.6 100 1,000
6 HEX-6x60S ◆ 60 51 2.3〜6.0 − 46.0 8.5 13.0 6.2 9.6 KTB-9.6 100 1,000
6 HEX-6x70S ◆ 70 61 2.3〜6.0 − 56.0 8.5 13.0 6.2 9.6 KTB-9.6 100 1,000
6 HEX-6x90S ◆ 90 61 2.3〜6.0 22.0 76.0 8.5 13.0 6.2 9.6 KTB-9.6 100 1,000
6 HEX-6x115S ◆ 115 61 2.3〜6.0 47.0 101.0 8.5 13.0 6.2 9.6 KTB-9.6 100 500
6 HEX-6x135S ◆ 135 61 2.3〜6.0 67.0 121.0 8.5 13.0 6.2 9.6 KTB-9.6 100 500
6 HEX-6x150S ◆ 150 61 2.3〜6.0 82.0 136.0 8.5 13.0 6.2 9.6 KTB-9.6 100 500
◆V Fluted Thread