126B2 - 9/16"-18, 3" Wet Bolt w/ Nut & Zerk

The 126B2 Wet Bolt Kit is a complete bearing maintenance solution for trailer wheel ends. Featuring a 9/16″–18 UNC threaded bolt, this wet bolt allows in-service greasing of your wheel bearings via an integrated zerk fitting without disassembly. The kit includes the bolt, matching hex nut, and grease zerk fitting—everything you need to keep your bearings properly lubricated and protected under load.

Features:

• Wet-bolt design provides on-the-road greasing of wheel bearings
• 9/16″–18 UNC thread suited for lighter-duty axles and hubs
• Includes: bolt, matching nut, and straight grease zerk (1/8″ NPT)
• Zinc-plated bolt & nut resist corrosion; zerk resists grease breakdown
• Nut seats flush to accommodate standard grease caps or hub covers
• Helps extend bearing life by enabling quick lubrication

Specifications:

• Part Number: 126B2
• Thread Size: 9/16″–18 UNC
• Bolt Length: 3″ (under head to end of threads)
• Material: Alloy steel bolt & nut; steel zerk fitting
• Finish: Zinc-plated bolt & nut; grease-proof zerk coating

Includes:

• (1) 9/16″–18 × 3″ wet bolt with internal grease channel
• (1) Matching hex nut (9/16″–18)
• (1) Grease zerk fitting (straight, 1/8″ NPT)
• Fitment & Applications:
• Suited for 3,500–5,200 lb trailer axles using 9/16″ spindles
• Compatible with Dexter®, Lippert®, and many industry standard hubs
• Ideal for boat trailers, utility trailers, and caravan wheels