Description
Overview:
These female brake nuts feature a 7/16 inch UNF thread (20 TPI, 1.27 mm pitch) for joining 1/4 inch (6.35 mm) brake pipe to compatible hydraulic brake components. Machined from brass for corrosion resistance and consistent sealing performance, they help maintain brake line integrity across cars, light commercial vehicles, trailers and machinery. The 7/16 inch (11.11 mm) UNF thread matches many UK/US‐spec automotive brake fittings and is suited to use with properly flared 1/4 inch pipe. When installed correctly, they provide a secure, vibration‐resistant joint that withstands harsh underbody conditions. Suitable with copper, cunifer (copper‐nickel) or steel brake pipe. Manufacturer Part Number (MPN): 305 113. Designed for routine repairs, upgrades and complete line replacements in automotive brake systems.
Key Features:
- 7/16 inch UNF female thread - 20 TPI (1.27 mm pitch), 11.11 mm major diameter
- Suits 1/4 inch (6.35 mm) brake pipe used on cars, vans, 4x4s and plant
- Precision‐machined brass body for corrosion resistance and long service life
- Clean lead‐in for easy hand starting and reduced risk of cross‐threading
- Forms a tight, leak‐resistant joint with correctly flared tube ends
- Compatible with copper, cunifer (CuNi) and steel brake pipe materials
- Hex profile provides positive grip with standard spanners for controlled tightening
- UNF standard thread for broad compatibility with aftermarket and OE components
- Dependable performance under typical automotive brake pressures when fitted properly
Typical Applications:
Building or repairing 1/4 inch (6.35 mm) brake lines, replacing damaged fittings during caliper, wheel cylinder, or master cylinder work, and fabricating new lines in restorations. Suitable for cars, light commercials, trailers, agricultural and construction equipment that use 7/16 inch (11.11 mm) UNF female connections.
Also known as:
Brake pipe nut, female flare nut, tube nut, brake union nut, UNF 7/16‐20 female nut, 1/4 inch pipe fitting nut, hydraulic brake fitting nut, brake line connector nut.
Product Specifications
| L&S Part No. | 305 113 |
|---|---|
| Unit of Sale | 1 Piece |
