Browse Categories
Links below contain tubing and the nuts and fittings for that size tubing

A1-3 - 3/8" x 24 unf male fully threaded steel nut, .562” long overall

3/8" x 24 unf male fully threaded steel brake line nut - SAE flare
Price: $1.00
In Stock
Part Number: A1-3

Quantity Discounts

QuantityAmount
12 to 100$0.50
Most common American nut
3/8" x 24 unf male fully threaded steel nut, .562” long overall SAE flare (45 degree/ inverted/double)
Uses 3/8” wrench.
This is the standard American brake line nut for use with 3/16”/4.75mm OD tubing with SAE flare.
Found on North American made cars and trucks for over 60 years.
Still widely used but metric is becoming common, if your vehicle has ABS you must be very careful to identify what nuts and flares you need.
Caution, this nut will thread very easily and loosely into a 10mm x 1.0 threaded port!

Related Products

12 pack of A1-3  Standard American  Flare nut for 3/16
#8 Nut Pack
MSRP: $12.00
Price: $6.00
You Save: $6.00
#8 Nut Pack
12 pack of A1-3 3/8 x 24 unf male fully threaded - .562" long Standard American brake line nut for 3/16"/4.75mm tube SAE flare (45 degree/ inverted/double)
3/16”/SAE brake line nut for American cars
#1 Nut Pack
MSRP: $22.00
Price: $11.00
You Save: $11.00
#1 Nut Pack
The most common nuts used on American cars 17 pieces SAE flare (45 degree inverted/double) for 3/16”/4.75mm tubing
Standard American nuts with master cylinder nuts for 3/16
#2 Nut Pack
MSRP: $31.50
Price: $15.75
You Save: $15.75
#2 Nut Pack
Standard American nuts with master cylinder nuts for 3/16" tube 20 pieces SAE flare (45 degree inverted/double)
3/8
AD1br - Screw 3/16"/4.75mm line into female port to adapt to 1/8" NPT port hole - brass
Price: $3.00
AD1br - Screw 3/16"/4.75mm line into female port to adapt to 1/8" NPT port hole - brass
Adaptor 3/8" x 24 unf female SAE flare (45 degree/inverted/double) to male 1/8” pipe thread, .700” long overall This adaptor is brass
3/8
UA1-3br - 3/8" x 24 unf female union - brass - SAE flare
Price: $3.00
UA1-3br - 3/8" x 24 unf female union - brass - SAE flare
Union 3/8" x 24 unf female union, .630” long overall. SAE flare (45 degree inverted/double) This union is brass Use with 3/16"/4.75mm brake line
3 way Tee - 3/8
TA1-3br - 3 way Tee - 3/8" x 24 unf female tee - brass - SAE flare
Price: $8.00
TA1-3br - 3 way Tee - 3/8" x 24 unf female tee - brass - SAE flare
3 way Tee 3/8" x 24 unf female tee SAE flare (45 degree inverted/double) This tee is brass Use with 3/16"/4.75mm brake line
Search
Shopping Cart
Your cart is empty.