Banjo Bolts

What Is a Banjo Bolt?

A banjo bolt is a special type of hollow bolt with a transverse port on the shank, primarily used for the transfer of liquids or gases. Its name is derived from the banjo-shaped appearance of the associated fitting, which resembles a banjo. Banjo bolts are typically used in conjunction with banjo fittings and sealing washers (such as copper washers) to ensure a leak-free connection.

• Compact structure, saving installation space
• Supports multi-angle piping layouts
• Reliable sealing performance, suitable for high-pressure systems
• Easy to assemble, disassemble, and maintain

Specifications

Material	Stainless steel, carbon steel, alloy steel, aluminum, brass, titanium alloy
Thread	Metric coarse thread, metric fine thread, UNC, UNF, BSW, BSF, partial threads
Size	Metric：M5 M6 M8 M10 M12 M14 M16 M18 Inch：1/8 inch, 1/4 inch, 5/16 inch, 3/8 inch, 7/16 inch, 1/2 inch, 9/16 inch, 3/4 inch, 1 inch
Surface Treatment	Natural, Dacromet, hot-dip galvanized, zinc plated (colored zinc, white zinc, black zinc), chrome plated, nickel plated, oxidized blackened, passivated, etc.
Grade	A2-70, A2-80, A4-70, A4-80. Class 3.6, 4.6, 4.8, 5.6, 5.8, 6.8, 8.8, 9.8, 10.9, 12.9.
Standard	DIN 7643, SAE J514, ISO 8434-2, ANSI B31.3, DIN 2353, or Custom
Packaging	Plastic bags, cartons, wooden boxes, pallets

Banjo Bolt Structural Diagram

Types of Banjo Bolts

Uses

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