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    HD4 Centre 90HD4 Centre Disc VAR
    HD4 Centre Disc
    HD4 Centre 90
    HD4 Centre Disc VAR

    Centre Discs (4 Hole)

    Sta-Lok’s four hole centre discs are fully machined to fit Sta-Lok SC Clevis or Adjustable Fork F34 Systems. The HD4 disc allows rod systems to be connected together, creating both a structural and architectural feature.

    • Available with 90 degree or variable hole angles as requested
    • Designed to BS 5950 – 1:2000
    • Material specification to EN 10088
    • Available in Satin (standard) or Polished Finish to match the required rod finish
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    Product Code: HD4

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    Left Hand Right Hand

    Inch Only Metric Only
    SKU A (MM)A (INCH)B (MM)B (INCH)C (MM)C (INCH)D (MM)D (INCH)Angle
    HD4 90 - M6 70.0 2.756 20.0 0.787 6.3 0.248 5.5 0.217 90°
    HD4 VAR - M6 70.0 2.756 20.0 0.787 6.3 0.248 5.5 0.217 Variable Angle
    HD4 90 - M8 80.0 3.150 20.0 0.787 8.0 0.315 7.0 0.276 90°
    HD4 VAR - M8 80.0 3.150 20.0 0.787 8.0 0.315 7.0 0.276 Variable Angle
    HD4 90 - M10 120.0 4.724 40.0 1.575 11.0 0.433 10.0 0.394 90°
    HD4 VAR - M10 120.0 4.724 40.0 1.575 11.0 0.433 10.0 0.394 Variable Angle
    HD4 90 - M12 140.0 5.512 40.0 1.575 12.7 0.500 11.0 0.433 90°
    HD4 VAR - M12 140.0 5.512 40.0 1.575 12.7 0.500 11.0 0.433 Variable Angle
    HD4 90 - M16 180.0 7.087 50.0 1.969 16.0 0.630 15.0 0.591 90°
    HD4 VAR - M16 180.0 7.087 50.0 1.969 16.0 0.630 15.0 0.591 Variable Angle
    HD 90 - M20 200.0 7.874 55.0 2.165 19.0 0.748 18.0 0.709 90°
    HD4 VAR - M20 200.0 7.874 55.0 2.165 19.0 0.748 18.0 0.709 Variable Angle
    HD4 90 - M22 230.0 9.055 60.0 2.362 22.0 0.866 21.0 0.827 90°
    HD4 VAR - M22 230.0 9.055 60.0 2.362 22.0 0.866 21.0 0.827 Variable Angle
    HD4 90 - M24 260.0 10.236 70.0 2.756 25.0 0.984 24.0 0.945 90°
    HD4 VAR - M24 260.0 10.236 70.0 2.756 25.0 0.984 24.0 0.945 Variable Angle
    HD4 90 - M27 300.0 11.811 70.0 2.756 28.0 1.102 27.0 1.063 90°
    HD4 VAR - M27 300.0 11.811 70.0 2.756 28.0 1.102 27.0 1.063 Variable Angle
    HD4 90 - M30 350.0 13.780 90.0 3.543 30.0 1.181 29.0 1.142 90°
    HD4 VAR - M30 350.0 13.780 90.0 3.543 30.0 1.181 29.0 1.142 Variable Angle
    HD4 90 - M36 350.0 13.780 90.0 3.543 36.0 1.417 34.0 1.339 90°
    HD4 VAR - M36 350.0 13.780 90.0 3.543 36.0 1.417 34.0 1.339 Variable Angle

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