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Long Stroke Tester for Roofing Screws



Mastrad's Long Stroke Tester determines the strength and suitability of fixings in built-up roofing constructions where performance data is unavailable.

The long stoke of 80mm means that once tested the fixing can be completely extracted.

The large area of the tester base reduces the pressure on fragile roofing materials to prevent damage. At a load of 10kN the pressure is less than 1N/mm�.

2 interchangeable gauges may be chosen from 5, 10, 15 and 20kN. all have quick release couplings, maximum load pointers, shatterproof glass, rubber protection covers and are calibrated to an accuracy of � 2% at full scale deflection, certificates included.

4 interchangeable pulling plates are supplied. Attached to the tester, these slot under the head of the fixing ( must be fixed 4mm proud of the surface ) or under any one of the 6 plain and 6 threaded button adaptors. Thus virtually any fixing can be tested.

Simple, robust construction ensures maximum reliability.


80mm stroke for screw extraction
Low pressure on roofing material
2 interchangeable load gauges
Variety of test adaptors supplied

Pulling Plate Details

Pulling Plate
Head Dia.
A mm
Shank Dia.
B mm

1 for large screws

2 for small screws

3 for plastic fixings

4 - button adaptors












Specifications:       Model 0095c

Weight inc. gauge  3.3kg
Diameter of base   140mm
                           (Effective Load Area
                            = 10840mm�)

Overall height         310mm
Button adaptors
      Threaded:      M4, M5, M6, M8,                             M10, M12
      Plain:             (all slotted) internal
                          diameters: 4.5, 5.5,                             6.5, 8.5, 10.5, 12.5.

Tester supplied complete in a padded steel case.