Product Description
**Milwaukee parts change not only by model# but also by serial number. To look up your tools parts break down on Milwaukee's website please click here:
Milwaukee Hex Nut
Model Number: 06-55-0900
The Milwaukee 06-55-0900 Hex Nut is a genuine OEM replacement fastener designed for use in the Milwaukee 2441-20 and 2441-21 M12 Cordless Caulk and Adhesive Guns. This small hex nut is one of the threaded fasteners used to secure internal components within the caulk gun assembly, and Milwaukee specifies the exact thread size, pitch, material, hardness, and dimensional tolerances of this nut to match the original mating fastener at its installed location in the tool. Using the correct OEM fastener at this location ensures proper thread engagement, correct clamping force on the joint it secures, and full dimensional fit within the surrounding components. Substituting a generic hardware-store hex nut at this location can result in incorrect thread engagement, insufficient or excessive clamping force, dimensional interference with adjacent components, or premature loosening under the cyclic loading the caulk gun mechanism imposes during dispense cycles.
A stripped, corroded, missing, or loose hex nut at this location can prevent proper assembly of the caulk gun, allow components to shift or come loose during use, or transmit dispense forces incorrectly into surrounding components. Replacing the nut with this OEM service part restores correct joint integrity and proper tool operation. Because Milwaukee Tool specifies replacement parts by both catalog number and serial number, always verify your tool's serial number against the official Milwaukee 2441-20 or 2441-21 service parts diagram before ordering, since Milwaukee occasionally implements running production changes that affect part compatibility within the same catalog number. When replacing the hex nut, it is good practice to inspect the mating fastener and surrounding components for wear, thread damage, or fatigue at the same time, since a nut failure is sometimes accompanied by damage to the bolt, screw, or threaded boss it engages. Verify by serial number using Milwaukee's online parts lookup before ordering to confirm correct fitment.
Features
- Genuine Milwaukee OEM replacement, direct factory part for the 06-55-0900 reference
- Designed for the Milwaukee 2441-20 and 2441-21 M12 Cordless Caulk and Adhesive Guns
- Six-sided hex profile for tightening and loosening with a standard wrench or socket
- Manufactured to Milwaukee factory thread specifications, material, and dimensional tolerance
- Correct thread engagement with the original mating fastener at its installed location
- Direct-fit replacement, no modification required for installation
- Restores correct joint integrity and proper assembly fit after stripping, corrosion, or loss of the original nut
- Designed to handle the cyclic loading of the caulk gun mechanism during dispense cycles
Specifications
- Manufacturer: Milwaukee Tool
- Part Number: 06-55-0900
- Official Description: Hex Nut
- Component Type: Internal Assembly Hex Nut Fastener
- Confirmed Compatible Models: 2441-20 M12 Cordless Caulk and Adhesive Gun, 2441-21 M12 Cordless Caulk and Adhesive Gun, 2441-059 M12 10 Oz Kit (Brazil bulk variant)
- Part Weight: 0.02 lbs
- Quantity: Sold individually, 1 hex nut per order
- Part Type: OEM Service Replacement Fastener
Includes
- (1) Milwaukee 06-55-0900 Hex Nut
- Note: Verify your tool's catalog number (2441-20, 2441-21) and serial number against the official Milwaukee parts diagram before ordering
