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  2. Fasteners
  3. Screws
  4. Self Tapping Screws
  5. ISO 1481 Slotted Pan Head Tapping Screws

ISO 1481 Slotted Pan Head Tapping Screws

ISO 1481 Equivalents

DIN 7971 PN 83106 UNI 6591 CSN 1481

ISO 1481 Slotted Pan Head Tapping Screws
Tapping Screws, Slotted Pan Head

ISO 1481 Dimensions

Thread P a da dk k n r rf t w y
max. max. max. min. max. min. nominal max. min. min. approx. min. min. Type C Type F
ST 2.2 0.8 0.8 2.8 4 3.7 1.3 1.1 0.5 0.7 0.56 0.1 0.6 0.5 0.5 2 1.6
ST 2.9 1.1 1.1 3.5 5.6 5.3 1.8 1.6 0.8 1 0.86 0.1 0.8 0.7 0.7 2.6 2.1
ST 3.5 1.3 1.3 4.1 7 6.6 2.1 1.9 1 1.2 1.06 0.1 1 0.8 0.8 3.2 2.5
ST 4.2 1.4 1.4 4.9 8 7.6 2.4 2.2 1.2 1.51 1.26 0.2 1.2 1 0.9 3.7 2.8
ST 4.8 1.6 1.6 5.5 9.5 9.1 3 2.7 1.2 1.51 1.26 0.2 1.5 1.2 1.2 4.3 3.2
ST 5.5 1.8 1.8 6.3 11 10.6 3.2 2.9 1.6 1.91 1.66 0.25 1.6 1.3 1.3 5 3.6
ST 6.3 1.8 1.8 7.1 12 11.6 3.6 3.3 1.6 1.91 1.66 0.25 1.8 1.4 1.4 6 3.6
ST 8 2.1 2.1 9.2 16 15.6 4.8 4.5 2 2.31 2.06 0.4 2.4 1.9 1.9 7.5 4.2
ST 9.5 2.1 2.1 10.7 20 19.5 6 5.7 2.5 2.81 2.56 0.4 3 2.4 2.4 8 4.2
l Trade sizes
Nominal Type C Type F
min. max. min. max.                  
4.5 3.7 5.3 3.7 4.5 +                
6.5 5.7 7.3 5.7 6.5 + + +            
9.5 8.7 10.3 8.7 9.5 + + + + +        
13 12.2 13.8 12.2 13 + + + + + + +    
16 15.2 16.8 15.2 16 + + + + + + + + +
19 18.2 19.8 18.2 19   + + + + + + + +
22 21.2 22.8 20.7 22     + + + + + + +
25 24.2 25.8 23.7 25       + + + + + +
32 30.7 33.3 30.7 32         + + + + +
38 36.7 39.3 36.7 38             + + +
45 43.7 46.3 43.5 45               + +
50 48.7 51.3 48.5 50               + +