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the ultimate fixing for major constructions

Excalibur Screwbolts

Updated: 03/12/09Tamperproof - Hexagon Socket Dome (DSA) 12mm

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FURTHER INFORMATION

For additional technical data please call the Sales Desk on
01702 206962 or 01702 207909

 

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

DSA 12mm Options
Screwbolt Diameter Head Diameter Allen Key size Clearance Hole Diameter Max Fixing Thickness 'A'
Thread Length 'B'
Clearance Depth 'C'
Box Quantity Order code:
12mm 25mm 10mm 15mm 20mm 75mm 24mm 50 DSA 12 / 075
12mm 25mm 10mm 15mm 46mm 100mm 24mm 50 DSA 12 / 100
Drill Bit Diameter Concrete and Brick 12.0mm
Soft Materials 11.0mm
DSA 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 30 N/mm² 60 26.50 8.83 - - -
30 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 - - -
Lignacite 3.5 N/mm² 75 -
-
- - -
Topcrete 7.0 N/mm² 75 18.90 6.30 - - -

**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.

DSA 12mm  TECHNICAL DATA
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

All dimensions in millimetres (mm)