301-04 banjo bolt M12 X 1.0

Speedflow 301-04 | Banjo Bolt M12 x 1.0 | Brake & Hydraulic Systems

The Speedflow 301-04 is a precision-machined M12 x 1.0 fine-thread banjo bolt designed for use with Speedflow 200 series banjo hose ends in high-performance brake and hydraulic line assemblies. The fine 1.0mm pitch thread ensures maximum engagement and clamping force, delivering a secure, leak-free connection at caliper, master cylinder, and other M12-ported hydraulic components.

Product Specifications

• Part Number: 301-04 (SF301-04)
• Thread: M12 x 1.0 (metric fine)
• Series: Speedflow 300 — Banjo Bolts
• Compatible With: Speedflow 200 series -4 AN banjo hose ends
• Barcode: 9342122008184

Applications

The 301-04 is a go-to banjo bolt for performance and motorsport hydraulic builds, including:

• Brake caliper M12 x 1.0 banjo bolt replacement or upgrade
• Master cylinder and brake bias valve hydraulic connections
• Clutch slave cylinder line fastening
• Circuit racing, motorsport, and track-day brake system fabrication
• Custom performance brake and clutch line assemblies using Speedflow banjo fittings

M12 x 1.0 Thread — Why It Matters

The M12 x 1.0 fine thread is widely used across European and Japanese OEM brake calipers and master cylinders, as well as many aftermarket performance components. The fine pitch provides greater thread engagement per unit length compared to standard M12 x 1.25 or M12 x 1.5 threads, resulting in improved clamping force and reduced risk of loosening under vibration — critical in a race or high-performance braking environment.

Sold individually. Copper sealing washers recommended — sold separately. Always verify thread pitch and banjo bore diameter of your component before ordering.