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Excalibur Screwbolts

Updated: 01/07/12Excalibur Screwbolt Hexagon Head (HSB) 12mm

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Please note: From time to time, materials and specifications are changed to improve performance, please check for the latest information.

HSB 12mm   Options
Screwbolt Diameter Head Details and Diameter Clearance Hole Diameter Max Fixing Thickness 'A'
Thread Length 'B'
Clearance Depth 'C'
Box Quantity Order code:
12mm 19mm Hex. Drive
Flange dia. 25mm
15mm 20mm 75mm 24mm 50 HSB 12 / 075
12mm 15mm 46mm 100mm 24mm 50 HSB 12 / 100
12mm 15mm 96mm 150mm 24mm 25 HSB 12 / 150
Drill Bit Diameter Concrete and Brick 12.0mm
Soft Materials 11.0mm
Ultimate & Safe Load Characteristics based on 3:1 ratio
Material Embedment
Depth
(mm)
Tensile Load kN. Shear Load kN. Max. Torque
Nm. **
Ultimate Safe Ultimate Safe -
Concrete 60 N/mm² 60 38.70 12.90 - - -
60 N/mm² 90 69.00 23.00 59.80 19.93 -
Concrete 35 N/mm² 60 26.50 8.83 - - -
35 N/mm² 90 43.00 14.33 59.80 19.93 -
Engr. Brick 100 N/mm² 45 20.00 6.67 - - -
Semi.Engr. 70 N/mm² 45 15.00 5.00 - - -
Fletton 20 N/mm² 45 15.80 5.27 - - -
Butterly 20 N/mm² 45 5.10 1.70 - - -
Hemelite 3.5 N/mm² 75 12.10 4.03 - - 15
Lignacite 3.5 N/mm² - - - - - -
Topcrete 7.0 N/mm² 75 18.90 6.30 - - 15

**With softer materials, care should be taken not to exceed the maximum recommended torque, as this may result in the de-grading of the matrix.

HSB 12mm  TECHNICAL DATA
Material Boron Steel BS3111/9/2.1.A
Finish Mechanical Zinc as standard, or Zinc & Yellow passivated
Other finishes Other platings & finishes are available to special order subject to quantity
Tensile strength 800N/mm2 Case hardened
Other sizes Other lengths of all diameters are available to special order subject to quantity
Embedment concrete and brick Minimum recommended is 4.5 × bolt diameter
Soft block Minimum recommended is 75mm
Edge distance & spacings For Edge distances between 5 dia. and 10 dia. see reduction factors

For Edge and Spacing Distances minimum 5 diameter and between 5-10 diameter see Reduction Factors