ISO Thread form
 WHITWORTH
 FE 37
Raw
FE 37
Zinc Plated
Stainless Steel
A2 - AISI 304
A4 - AISI 316
BrassC 20
C 40

(5.8 - 6.8)
  FE 37
Raw
M3  1/8"
M4  5/32"
M5  3/16"
M6 1/4"
M7    5/16"
M8 3/8"
M10 7/16"
M12 1/2"
M14 9/16"
M16 5/8"
M18 3/4"
M20 7/8"
M22 1"
M24 1" 1/8
M27 1" 1/4
M30 1" 3/8
M33    1" 1/2
M36      
M39      
M42      
M45      
M48      
M52      
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