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SCREW PITCH GAUGES

Standard features include:

  • Accurately milled steel blades
  • Designed to check both internal and external thread forms
  • Marked with nominal size on each blade
  • All blades fixed in a steel sleeve
  • Screw cutting gauge included
  • 801,804,806,809 available in Retail Packs See page 51



Note: SI (System International) metric blades
should not be used to check ISO (International Standards Organisation) metric threads due to interference of
the thread forms; but ISO metric blades can be used to check SI metric threads.


801
METRIC: Screw Pitch Gauges
  No. of   Screw Cutting      
Screw Pitch Blades Threads per mm Gauge included Cat. No. Price (£)  
S.I. Metric 30 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 60 degrees 801 £22.35 F
    1.0, 1.1, 1.2, 1.25, 1.3, 1.4, 1.5, 1.6, 1.7, 1.75, 1.8, 1.9, 2.0, 2.5, 3.0        
ISO Metric 22 0.35, 0.4, 0.45, 0.5, 0.6, 0.7, 0.75, 0.8, 1.0, 1.25, 1.5, 1.75, 60 degrees 809 £16.82 F  
    2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0        

804
COMBINED METRIC & IMPERIAL: Screw Pitch Gauges
S.I. Metric 49 Metric: 0.4, 0.5, 0.7, 0.75, 0.8, 0.9, 1.0, 1.25, 1.50, 1.75, 60 degrees 804 £35.19 F
& Whitworth   2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0        
    Imperial: 4, 4.5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16,        
    18, 19, 20, 22, 24, 25, 26, 28, 30, 32, 36, 40, 48, 60        
IMPERIAL: Screw Pitch Gauges
BA - British 12 0BA, 1BA, 2BA, 3BA, 4BA, 47.5 degrees 798 £13.59 F
Association   5BA, 6BA, 7BA, 8BA, 9BA, 10BA        
American 30 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 11.5, 12, 13, 14, 15,        
National   16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38, 40, 42 n/a 799 £22.39 F
Whitworth 28 4, 4.5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 19,        
    20, 22, 24, 25, 26, 28, 30, 32, 36, 40, 48, 60 55 degrees 800 £19.03 F
Unified 30 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 11.5, 12, 13, 14, 15, 16, n/a 806 £22.19 F
    18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38, 40, 42