SAE Threads

SAE Threads

SAE THREADS
SAE is Society of Automotive Engineers 

These fittings are commonly used in refrigeration, automotive and low pressure applications.
 

SAE 45° Flare - SAE J512
SAE male has 45° flare which seals against 45° seat in female. Male can also seal against 45° flared tubing with nut and sleeve.
7/16 - 20, 1/2 - 20, 3/4 - 16 & 7/8 - 14 are the same thread form as JIC 37° flare. Some fittings in these sizes have both JIC 37° & SAE 45° seats.
MALE THREAD DASH MALE   FEMALE   TUBE
OD & PITCH SIZE THREAD OD   THREAD ID   SIZE
inch - TPI   mm inch mm inch inch
5/16 -24 -05 7,9 0.31 6,8 0.27 1/8
3/8 - 24 -06 9,5 0.38 8,4 0.33 3/16
7/16 - 20 -07 11,1 0.44 9,9 0.39 1/4
1/2 - 20 -08 12,7 0.50 11,4 0.44 5/16
5/8 - 18 -10 15,9 0.63 14,2 0.56 3/8
3/4 - 16 -12 19,1 0.75 17,5 0.69 1/2
7/8 - 14 -14 22,2 0.88 20,6 0.81 5/8
1.1/16 -14 -17 27,0 1.06 24,9 0.98 3/4
 
SAE 45º INVERTED FLARE - SAE J512
MALE THREAD DASH MALE   FEMALE   TUBE
OD & PITCH SIZE THREAD OD   THREAD ID   SIZE
inch - TPI   mm inch mm inch inch
7/16 - 24 -07 11,1 0.44 9,9 0.39 1/4
1/2 - 20 -08 12,7 0.50 11,4 0.45 5/16
5/8 - 18 -10 15,9 0.63 14,2 0.56 3/8
11/16 - 18 -11 17,5 0.69 16,0 0.63 7/16
 
SAE PILOT O RING SEALS    
Pilot Male Swivel
MALE THREAD SIZE MALE   FEMALE   TUBE
OD & PITCH SIZE THREAD OD   THREAD ID   SIZE
inch - TPI   mm inch mm inch Dash
5/8 - 18 -10 15,9 0.63 14,2 0.56 -6
3/4 - 18 -12 19,0 0.75 17,8 0.70 -8
7/8 - 18 -14 22,2 0.88 20,6 0.81 -10
 
Pilot Female Swivel
MALE THREAD DASH MALE   FEMALE   TUBE
OD & PITCH SIZE THREAD OD   THREAD ID   SIZE
inch - TPI   mm inch mm inch Dash
5/8 - 18 -10 15,9 0.63 14,2 0.56 -6
3/4 - 16 -12 19,0 0.75 17,5 0.69 -8
3/4 - 16 -12 19,0 0.75 17,5 0.69 -8