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Excalibur Screwbolt
DETAILS
The Excalibur screw bolt with Hex head is very versatile with a simple and fast installation process.
Giving a close to the edge ability due to its non expanding design, it provides exceptional strength and immediate load capacity in many substrates.
- Available in various diameters for all projects, giving a cost effective solution
- Suitable for scaffold, formwork and many other applications
- The Excalibur Screwbolt is the market leader in construction fixings
| Screwbolt Diameter | Head Details and Diameter | Clearance Hole Diameter | Max Fixing Thickness ‘A’ | Thread Length ‘B’ | Clearance Depth ‘C’ | Box Quantity | Order code: |
|---|---|---|---|---|---|---|---|
| 10mm | 17mm Hex. Drive Flange Diameter 22mm | 12mm | 15mm | 60mm | 20mm | 50 | HSB 10 / 060 |
| 10mm | 12mm | 30mm | 75mm | 20mm | 50 | HSB 10 / 075 | |
| 10mm | 12mm | 50mm | 100mm | 20mm | 50 | HSB 10 / 100 | |
| 10mm | 12mm | 70mm | 120mm | 20mm | 50 | HSB 10 / 120 | |
| 10mm | 12mm | 100mm | 150mm | 20mm | 50 | HSB 10/ 150 |
| Drill Bit Diameter | Concrete and Brick | 10.0mm |
| Soft Materials | 9.0mm |
| Material | Embedment Depth (mm) | Tensile Load kN. | Shear Load kN. | Max. Torque Nm. ** | |||
|---|---|---|---|---|---|---|---|
| Ultimate | Safe | Ultimate | Safe | – | |||
| Concrete | 60 N/mm² | 50 | 29.00 | 9.67 | – | – | – |
| 60 N/mm² | 75 | 48.00 | 16.00 | 46.00 | 15.33 | – | |
| Concrete | 35 N/mm² | 50 | 18.80 | 6.27 | – | – | – |
| 35 N/mm² | 75 | 33.40 | 11.13 | 46.00 | 15.33 | – | |
| Engr. Brick | 100 N/mm² | 45 | 20.00 | 6.67 | – | – | – |
| Semi.Engr. | 70 N/mm² | 45 | 14.20 | 4.73 | – | – | – |
| Fletton | 20 N/mm² | 45 | 11.60 | 3.87 | – | – | – |
| Butterly | 20 N/mm² | 45 | 3.90 | 1.30 | – | – | – |
| Hemelite | 3.5 N/mm² | 75 | 10.60 | 3.53 | – | – | 15 |
| Lignacite | 3.5 N/mm² | 75 | 9.00 | 3.00 | – | – | 15 |
| Topcrete | 7.0 N/mm² | 75 | 14.00 | 4.67 | – | – | 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.
| Material | Boron Steel BS3111/9/2.1.A |
|---|---|
| Finish | Zinc & Yellow passivated as standard, or mechanical zinc |
| 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 |
FOR EDGE AND SPACING DISTANCES MINIMUM 5 DIAMETER AND BETWEEN 5-10 DIAMETER SEE REDUCTION FACTORS
| 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 |
| 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.
| Material | Boron Steel BS3111/9/2.1.A |
|---|---|
| Finish | Zinc & Yellow passivated as standard, or mechanical zinc |
| 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 |
FOR EDGE AND SPACING DISTANCES MINIMUM 5 DIAMETER AND BETWEEN 5-10 DIAMETER SEE REDUCTION FACTORS
| Screwbolt Diameter | Head Details and Diameter | Clearance Hole Diameter | Max Fixing Thickness ‘A’ | Thread Length ‘B’ | Clearance Depth ‘C’ | Box Quantity | Order code: |
|---|---|---|---|---|---|---|---|
| 16mm | 24mm Hex Drive. Flange Diameter 32mm | 19mm | 28mm | 100mm | 32mm | 25 | HSB 16 / 100 |
| 16mm | 19mm | 28mm | 120mm | 32mm | 25 | HSB 16 / 120 | |
| 16mm | 19mm | 58mm | 150mm | 32mm | 25 | HSB 16 / 150 | |
| 16mm | 19mm | 158mm | 200mm | 32mm | 25 | HSB 16 / 200 |
| Drill Bit Diameter | Concrete | 16.0mm |
| – | – |
| Material | Boron Steel BS3111/9/2.1.A |
|---|---|
| Finish | Zinc & Yellow passivated as standard, or mechanical zinc |
| 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 |
Design Tables based on ETAG Approval ETA (11/0259)
| Anchor Size (mm) | 16 | 16 | 20 | 20 | 20 | 20 |
| Hef nominal (mm) | 120 | 120 | 170 | 170 | 250 | 250 |
| Non-Cracked Concrete | C20/25 | C50/60 | C20/25 | C50/60 | C20/25 | C50/60 |
| Tensile Nru,m [kN] | 44.30 | 74.60 | 82.90 | 121.75 | 206.40 | 223.56 |
| Shear Vru,m [kN] | 94.00 | 94.00 | 155.40 | 155.40 | 155.40 | 155.40 |
| Cracked Concrete | C20/25 | C50/60 | C20/25 | C50/60 | C20/25 | C50/60 |
| Tensile Nru,m [kN] | 31.80 | 43.84 | 44.60 | 79.37 | NT | NT |
| Shear Vru,m [kN] | 94.00 | 94.00 | 155.40 | 155.40 | NT | NT |
| Anchor Size (mm) | 16 | 16 | 20 | 20 | 20 | 20 |
| Hef nominal (mm) | 120 | 120 | 170 | 170 | 250 | 250 |
| Non-Cracked Concrete | C20/25 | C50/60 | C20/25 | C50/60 | C20/25 | C50/60 |
| Tensile NRk [kN] | 32.30 | 54.30 | 40.60 | 92.77 | 143.70 | 171.18 |
| Shear VRk [kN] | 91.70 | 91.70 | 139.50 | 139.50 | 139.50 | 139.50 |
| Cracked Concrete | C20/25 | C50/60 | C20/25 | C50/60 | C20/25 | C50/60 |
| Tensile NRk [kN] | 19.90 | 21.48 | 26.40 | 38.89 | NT | NT |
| Shear VRk [kN] | 91.70 | 91.70 | 139.50 | 139.50 | NT | NT |
| Anchor Size (mm) | 16 | 16 | 20 | 20 | 20 | 20 |
| Hef nominal (mm) | 120 | 120 | 170 | 170 | 250 | 250 |
| Non-Cracked Concrete | C20/25 | C50/60 | C20/25 | C50/60 | C20/25 | C50/60 |
| Tensile NRd [kN] | 17.90 | 30.16 | 22.60 | 51.53 | 79.90 | 95.10 |
| Shear VRd [kN] | 73.30 | 73.30 | 111.60 | 111.60 | 111.60 | 111.60 |
| Cracked Concrete | C20/25 | C50/60 | C20/25 | C50/60 | C20/25 | C50/60 |
| Tensile NRd [kN] | 9.95 | 10.74 | 13.20 | 19.45 | NT | NT |
| Shear VRd [kN] | 73.30 | 73.30 | 111.60 | 111.60 | NT | NT |
| Anchor Size (mm) | 16 | 16 | 20 | 20 | 20 | 20 |
| Hef nominal (mm) | 120 | 120 | 170 | 170 | 250 | 250 |
| Non-Cracked Concrete | C20/25 | C50/60 | C20/25 | C50/60 | C20/25 | C50/60 |
| Tensile Nrec [kN] | 12.80 | 21.54 | 16.14 | 36.80 | 57.07 | 67.92 |
| Shear Vrec [kN] | 52.40 | 52.40 | 79.70 | 79.70 | 79.70 | 79.70 |
| Cracked Concrete | C20/25 | C50/60 | C20/25 | C50/60 | C20/25 | C50/60 |
| Tensile Nrec [kN] | 7.10 | 7.70 | 9.40 | 13.90 | NT | NT |
| Shear Vrec [kN] | 52.40 | 52.40 | 79.70 | 79.70 | NT | NT |
NT = Not Tested
Revised October 6th 2014 (shear values extended)
| Minimum thickness of concrete member, minimum spacing and minimum edge distance for cracked and non-cracked concrete (without reduction factors) | ||
| Anchor size (mm) | hnom120mm | hnom170mm |
| 16 | 20 | |
| Minimum thickness of member | 165mm | 220mm |
| Minimum edge distance | 185mm | 180mm |
| Minimum spacing | 240mm | 340mm |
| Reduction Factors for Edge distances between 5 x diameter and 10 x diameter | |||||
|---|---|---|---|---|---|
| Edge distance | 80 | 100 | 120 | 140 | 160 |
| M16 anchors in tension | 0.70 | 0.78 | 0.87 | 0.96 | 1.00 |
| M16 anchors in shear | 0.32 | 0.52 | 0.71 | 0.90 | 1.00 |
| Reduction Factors for Edge distances between 5 x diameter and 10 x diameter | ||||||
|---|---|---|---|---|---|---|
| Edge distance | 100 | 120 | 140 | 160 | 180 | 200 |
| M20 anchors in tension | 0.75 | 0.82 | 0.89 | 0.92 | 0.96 | 1.00 |
| M20 anchors in shear | 0.32 | 0.52 | 0.71 | 0.80 | 0.90 | 1.00 |
| Factors for Space reduction in Tension | ||||||
| Space (mm) | 80 | 110 | 140 | 170 | 210 | 240 |
| M16 anchors | 0.75 | 0.80 | 0.85 | 0.90 | 0.95 | 1.00 |
| Space (mm) | 100 | 150 | 200 | 250 | 300 | 340 |
| M20 anchors | 0.70 | 0.76 | 0.82 | 0.88 | 0.94 | 1.00 |
| Increasing factors for cracked and non-cracked concrete | ||||||
| M16 | M20 | |||||
| C30/37 | 1.22 | 1.22 | ||||
| C40/50 | 1.41 | 1.41 | ||||
| C50/60 | 1.55 | 1.55 | ||||
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