3/8" x 24 UNF Alloy Blanking Cap

A precision-machined alloy blanking cap with a 3/8" x 24 UNF thread — the standard thread used on AN3 (-3 AN) brake fittings and bulkhead adaptors. Essential for sealing unused ports, capping off brake line ends during testing, or blanking bulkhead fittings when reconfiguring a brake system. Lightweight, corrosion-resistant, and reusable.

When Do You Need One?

• Sealing unused brake line ports or bulkhead fittings
• Pressure testing a brake system with one end capped
• Blanking off a redundant brake bias bar port
• Protecting open fittings during storage or transit

Product Details

• Thread: 3/8" x 24 UNF (AN3 / -3 AN compatible)
• Material: Anodised aluminium alloy
• Fitment: Internal thread cap — fits over male AN3 fittings
• Sold individually
• Supplied by BRT Motorsport — brake line and fitting specialists. Fast UK dispatch.