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Miscellanea > Mechanics > Threads EspaƱol
 
Metric
Metric ISO DIN 13 (M)
Metric Fine ISO DIN 13 (MF)
Whitworth
Whitworth Pipe Cylindrical G (BSP)
Whitworth Fine (BSF)
Allen
DIN 912 screw
DIN 913 Set screw
DIN 916 Set screw
Calculation
Minimum thread depth / height of nut
 
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Whitworth Pipe Fine Thread Cylindrical (BSF)
Nominal
Diameter
Thread Diameter
(mm)
Pitch (mm) Thread Diameter
(inches)
Threads per inch
BSF 3/16 x 32H4,7620,7933/1632
BSF 7/32 x 28H5,5560,9077/3228
BSF 1/4 x 26H6,350,9761/426
BSF 9/32 x 26H7,1430,9769/3226
BSF 5/16 x 22H7,9381,1545/1622
BSF 3/8 x 20H9,5251,273/820
BSF 7/16 x 18H11,1121,4117/1618
BSF 1/2 x 16H12,71,5871/216
BSF 9/16 x 16H14,2871,5879/1616
BSF 5/8 x 14H15,8751,8145/814
BSF 11/16 x 14H17,4621,81411/1614
BSF 3/4 x 12H19,052,1163/412
BSF 13/16 x 12H20.6372,1163/1612
BSF 7/8 x 11H22,2252,3097/811
BSF 1" x 10H25,42,541"10
BSF 1"1/8 x 9H28,5752,8221"1/89
BSF 1"1/4 x 9H31,752,8221"1/49
BSF 1"3/8 x 8H34,9253,1741"3/88
BSF 1"1/2 x 8H38,13,1741"1/28
BSF 1"5/8 x 8H41,2753,1741"5/88
BSF 1"3/4 x 7H44,453,6281"3/47
BSF 2" x 7H50,83,6282"7
BSF 2"1/4 x 6H57,154,2332"1/46
BSF 2"1/2 x 6H63,54,2332"1/26
BSF 2"3/4 x 6H69,854,2332"2/46
BSF 3" x 5H76,25,083"5
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