Castellated Propeller Nut.
Whitworth. BSW.
5/8" 11 threads per inch.
3/4" 10 threads per inch.
1". 8 threads per inch
1 1/4". 7 threads per inch.
1 1/2". 6 threads per inch.
British Standard Fine. BSF.
5/8". 14 threads per inch.
3/4". 12 threads per inch
1". 10 threads per inch.
1 1/4". 9 threads per inch.
1 1/2". 8 threads per inch.
Metric Fine.
14mm x 1.5mm pitch.
16mm x 1.5mm pitch.
18mm x 1.5mm pitch.
20mm x 1.5mm pitch.
22mm x 1.5mm pitch.
32mm x 1.5mm pitch.
Metric Coarse.
12mm x 1.75mm pitch.
14mm x 2mm pitch.
16mm x 2mm pitch.
18mm x 2.5mm pitch.
20mm x 2.5mm pitch.
22mm x 2.5mm pitch.
24mm x 3mm pitch.
30mm x 3.5mm pitch.
36mm x 4mm pitch.
