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Turbo Anchor K8

Model K8 / ターボアンカー / Japan Power Fastening Corporation (Official website)

Screw-fastened anchor that bites firmly into ALC for high holding strength. Outer diameter 18.5 mm, overall length 60 mm, compatible with M8 bolts and wood screws.

Last verified: (date the content was verified against the source document)

Specifications

Overall length (embedded depth) L 60 mm
Head diameter D 20 mm
Body Diameter d 18.5 mm
Pilot Hole Diameter Da 12.0 mm
Pilot Hole Depth ℓ 70 mm
Installation Bit TBK8
Applicable bolt M8,W5/16
Applicable wood screw diameter 7～8 mm
Screw-in depth 45～60 mm
Approximate Tensile Strength (Bolt) 3.0(300) kN(kgf)
Approximate Tensile Strength (Wood Screw) φ7.5～2.0(200) kN(kgf)

ターボアンカー model comparison

Compare 4 models in the same series by specification.

Model Pilot Hole Diameter Da Overall length (embedded depth) L Applicable bolt Approximate Tensile Strength (Bolt) Applicable wood screw diameter Approximate Tensile Strength (Wood Screw) Body Diameter d Pilot Hole Depth ℓ
K10 14.0 mm 70 mm M8～M10,W3/8 3.5(350) kN(kgf) 9～10 mm φ9.5～3.5(350) kN(kgf) 22.0 mm 80 mm
K4 10.0 mm 50 mm M4 1.8(180) kN(kgf) 4～4.5 mm φ4.1～1.6(160) kN(kgf) 15.0 mm 60 mm
K6 10.0 mm 50 mm M5,M6,W1/4 1.8(180) kN(kgf) 5～6 mm φ5.1～1.6(160) kN(kgf) 15.0 mm 60 mm
K8 This product 12.0 mm 60 mm M8,W5/16 3.0(300) kN(kgf) 7～8 mm φ7.5～2.0(200) kN(kgf) 18.5 mm 70 mm

How to choose Anchors

Points to check when selecting, with the values for this product (K8).

  1. 1. Select a matching bolt for the base material and fixture

    This product: Applicable bolt M8,W5/16

    ALC anchors have a fixed bolt nominal diameter for each size. The listed products are grouped as M4, M5 to M6, M8, and M8 to M10. Select the type that matches the hole diameter of the bracket being fixed and the nominal diameter of the bolt you use.

  2. 2. Compare required load with the tensile strength guide

    This product: Approximate Tensile Strength (Bolt) 3.0(300) kN(kgf)

    The guide tensile strength for the listed products when used with bolts is 1.8 to 3.5 kN. Select with a margin by including the weight of the fixture as well as loads from earthquakes and vibration. The values shown are guides only, and actual strength varies with the condition of the base material and installation accuracy.

  3. 3. Determine the neck length from fixture thickness plus embedment depth

    The under-head length of the listed screw-in anchors is 35 to 150 mm. Choose a length equal to the thickness of the bracket or rafter being fixed plus the required screw-in depth in the concrete. If the length is insufficient, holding force will be inadequate; if it is too long, the pilot hole becomes deeper and installation takes more effort.

  4. 4. Maintain the correct pilot hole diameter and depth

    This product: Pilot Hole Diameter Da 12.0 mm

    The listed products require a pilot hole diameter of 10 to 14 mm and a pilot hole depth of 60 to 80 mm. If the hole is too large, biting force will be insufficient; if it is too small, the base material may crack or the anchor may not thread in. Use a bit of the specified diameter and drill to the specified depth.

  5. 5. Embedment depth, body diameter, and edge distance in the base material

    This product: Overall length (embedded depth) L 60 mm

    ALC anchors have a total length (embedment depth) of 50 to 70 mm and a body diameter of 15 to 22 mm. Larger sizes generally achieve higher strength, but they also require greater base material thickness and edge distance. Check the thickness of the ALC panel and the distance from the edge at the installation position.

  6. 6. Check the installation bit and recess

    This product: Installation Bit TBK8

    Some types require a dedicated high-speed bit, and some have a drive recess in the head that accepts square bits. Confirm in advance that your impact driver bits fit, so that installation does not stop on site due to incompatible tools.

This guide was written by AI based on the listed products' documents and specification items.

About Anchors and all products

Description

Screw-fastened type that resists cracking at ALC edges and can be installed with an impact driver. Uses the dedicated Turbo Booster bit (TBK8). Pilot hole diameter 12.0 mm, depth 70 mm. Guideline tensile strength with M8 bolt: 3.0 kN (300 kgf).

Features

  • Bites firmly into ALC for high holding strength
  • Screw-fastened design resists cracking at ALC edges
  • Drilling and fastening possible with one impact driver
  • Dedicated high-speed Turbo Booster bit improves installation speed

Applications

  • Fixing electrical equipment such as distribution boards and lighting fixtures
  • Fixing air-conditioning and sanitary equipment
  • Fixing base materials during ALC exterior wall renovation
  • Installing bird netting

FAQ

Q. Where in ALC can the Turbo Anchor K8 be used, and what strength can it achieve?
A. It is a screw-fastened anchor that bites firmly into ALC for high strength. Guideline tensile strength with M8 bolt is 3.0 kN (300 kgf). Its structure resists cracking at ALC edges.
Q. What tools are required to install the Turbo Anchor K8?
A. It can be installed with an impact driver. Drilling and fastening can both be done with one impact driver. The dedicated Turbo Booster bit (TBK8) is used.
Q. What are the pilot hole diameter and pilot hole depth for the Turbo Anchor K8?
A. The pilot hole diameter is 12.0 mm and the pilot hole depth is 70 mm.
Q. What bolts and wood screws are compatible with the Turbo Anchor K8?
A. Compatible bolts are M8 and W5/16. Compatible wood screw diameter is 7 to 8 mm, and guideline tensile strength for wood screws is 2.0 kN (200 kgf) at φ7.5.
Q. What are the outer diameter, overall length, and thread engagement length of the Turbo Anchor K8?
A. Body (outer) diameter is 18.5 mm, overall length (embedment depth) is 60 mm, head diameter is 20 mm, and thread engagement length is 45 to 60 mm.

Written by AI based on the content of the source documents.

Source documents

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