Description
Overview:
The Screw IHSCT is a genuine Husqvarna fastener designed to secure assemblies on a wide range of Husqvarna handheld machines. Built from durable steel, it provides dependable clamping force to keep parts aligned and tight under vibration. Supplied under Manufacturer Part Number (MPN) 503216618, also listed as 503 21 66-18, it is specified for many brushcutters, trimmers, hedge trimmers and blowers, including models such as the 124R and 125R. Use this OEM screw to replace worn or missing fixings during routine servicing or repair to maintain safety, reliability and performance. Its precise thread and head profile match Husqvarna components, allowing clean installation without modification. Suitable for both professional users and DIY owners who require an exact-fit, Genuine Part.
Key Features:
- Genuine Husqvarna OEM screw for assured fit and compatibility across listed machines
- Steel construction for strength and long service life in outdoor conditions
- Holds fast under engine vibration and frequent use to support reliable operation
- Precision threads and head geometry for smooth fitting and secure tightening
- Direct replacement of the original fixing; no alterations or adaptors needed
- Broad model coverage across brushcutters, trimmers, blowers and hedge trimmers
- Supports safe, consistent reassembly during maintenance and part replacement
Typical Applications:
Used to fasten guards, handles, housings, gearcases, engine shrouds and attachment clamps on Husqvarna handheld equipment. Ideal when refurbishing machines, replacing missing or damaged screws, or restoring assemblies after vibration loosening or impact. Fit like-for-like and tighten to the guidance in your Husqvarna workshop manual.
Also known as:
Machine screw, fixing screw, bolt, fastener, OEM screw, replacement screw, assembly screw, cap screw.
Fits Models:
124R, 125R, 128R, 130BTs, 135R, 150BT, 170BT, 180BT, 223 L, 223 R, 223L, 223R, 232R, 233RJ, 235FR, 235R, 235RII, 241R, 241RJ, 323 C, 323 L, 323 LD, 323C, 323HD60, 323HE3, 323L, 323LD, 323P, 323R, 323RII, 323RJ, 323RJX, 324HDA55 X-Series, 325 CX, 325 LDx, 325 Lx, 325CX, 325HD75 X-Series, 325HDA55 X-Series, 325HDA65 X-Series, 325HE3 X-Series, 325HE4 X-Series, 325HS75 X-Series, 325HS99 X-Series, 325LDx, 325Lx, 325P, 325RDX, 325RJX, 325RX, 326 AI 25, 326 ES, 326 EX, 326 HD75 X-Series, 326 HDA55 X-Series, 326 L, 326 LDx, 326 LS, 326 Lx, 326AI25, 326ES, 326EX, 326HD60 X-Series, 326HD75 X-Series, 326HDA55 X-Series, 326HE3 X-Series, 326HE4 X-Series, 326L, 326LDx, 326LS, 326Lx, 326P, 326RJX, 326RX, 327 ES, 327 LDx, 327 LS, 327 Lx, 327ES, 327HDA65 X-Series, 327HE3 X-Series, 327HE4 X-Series, 327LDx, 327LS, 327Lx, 327P, 327P4, 327P5x, 327PT5S, 327RDX, 327RJX, 327RX, 333R, 333RJ, 335 LS, 335 LX, 335FR, 335LS, 335LX, 335R, 335RJX, 335RX, 336FR, 336FRD, 336RK, 343F, 343FR, 343FRM, 343R, 345FR, 345FX, 345FXT, 345R, 345RX, 355FRM, 355RX, 356BT, 370BTS, 380BTS, 524R, 525RK, 525RS, 525RX, 525RX Mark II, 525RXT, 525RXT Mark II, 525RXTMarkII, 535 LK, 535FBX, 535LK, 535LS, 535RJ, 535RX, 535RXT, 545FR, 545FX, 545FXAT, 545FXT, 545RX, 545RXT, 545RXTAT, 555FRM, 555FX, 555FXT, 555RXT, Saw Attachment
Alternate Part Numbers:
503 21 66-18, 503216618
Product Specifications
| L&S Part No. | 503 21 66 18 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 503216618 |
| Unit of Sale | 1 |
| Applications | 124R, 125R, 128R, 130BTs, 135R, 150BT, 170BT, 180BT, 223 L, 223 R, 223L, 223R, 232R, 233RJ, 235FR, 235R, 235RII, 241R, 241RJ, 323 C, 323 L, 323 LD, 323C, 323HD60, 323HE3, 323L, 323LD, 323P, 323R, 323RII, 323RJ, 323RJX, 324HDA55 X-Series, 325 CX, 325 LDx, 325 Lx, 325CX, 325HD75 X-Series, 325HDA55 X-Series, 325HDA65 X-Series, 325HE3 X-Series, 325HE4 X-Series, 325HS75 X-Series, 325HS99 X-Series, 325LDx, 325Lx, 325P, 325RDX, 325RJX, 325RX, 326 AI 25, 326 ES, 326 EX, 326 HD75 X-Series, 326 HDA55 X-Series, 326 L, 326 LDx, 326 LS, 326 Lx, 326AI25, 326ES, 326EX, 326HD60 X-Series, 326HD75 X-Series, 326HDA55 X-Series, 326HE3 X-Series, 326HE4 X-Series, 326L, 326LDx, 326LS, 326Lx, 326P, 326RJX, 326RX, 327 ES, 327 LDx, 327 LS, 327 Lx, 327ES, 327HDA65 X-Series, 327HE3 X-Series, 327HE4 X-Series, 327LDx, 327LS, 327Lx, 327P, 327P4, 327P5x, 327PT5S, 327RDX, 327RJX, 327RX, 333R, 333RJ, 335 LS, 335 LX, 335FR, 335LS, 335LX, 335R, 335RJX, 335RX, 336FR, 336FRD, 336RK, 343F, 343FR, 343FRM, 343R, 345FR, 345FX, 345FXT, 345R, 345RX, 355FRM, 355RX, 356BT, 370BTS, 380BTS, 524R, 525RK, 525RS, 525RX, 525RX Mark II, 525RXT, 525RXT Mark II, 525RXTMarkII, 535 LK, 535FBX, 535LK, 535LS, 535RJ, 535RX, 535RXT, 545FR, 545FX, 545FXAT, 545FXT, 545RX, 545RXT, 545RXTAT, 555FRM, 555FX, 555FXT, 555RXT, Saw Attachment |
| Machine Type | Backpack Blowers, Brushcutters, Brush Knives, Clearing Saws, Mist Blowers, Pole Pruners |
| Fits Brands | Husqvarna |
| Fits Models | 323HD60 | 323HE3 | 324HDA55 X-SERIES | 325HD75 X-SERIES | 325HDA55 X-SERIES | 325HDA65 X-SERIES | 325HE3 X-SERIES | 325HE4 X-SERIES | 325HS75 X-SERIES | 325HS99 X-SERIES | 326HD60 X-SERIES | 326 HD75 X-SERIES | 326 HDA55 X-SERIES | 326HE3 X-SERIES | 326HE4 X-SERIES | 327HDA65 X-SERIES | 327HE3 X-SERIES | 327HE4 X-SERIES | 323P | 325P | 326P | 327PT5S | 327P | Saw Attachment | 124R | 125R | 128R | 135R | 223 L | 223 R | 232R | 233RJ | 235FR | 235R | 235RII | 241R | 241RJ | 323R | 323RII | 323RJ | 323RJX | 325RDX | 325RJX | 325RX | 326RJX | 326RX | 327RDX | 327RJX | 327RX | 333R | 333RJ | 335FR | 335R | 335RJX | 335RX | 336FR | 336FRD, 336RK | 343F | 343FR | 343R | 345FR | 345FX | 345FXT | 345R | 345RX | 355FRM | 355RX | 130BTs | 150BT | 170BT | 180BT | 370BTS | 380BTS | 356BT | 524R | 525RK | 525RS | 525RX | 525RXT | 535FBX | 535LS | 535RJ | 535RX | 535RXT | 545FR | 545FX | 545FXAT | 545RX | 545RXT | 545RXTAT | 555FRM | 555FX | 555FXT | 555RXT | 545FXT | 223 L | 323 C | 323 L | 323 LD | 325 CX | 325 LDx | 325 Lx | 326 ES | 326 EX | 326 L | 326 LDx | 326 LS | 326 Lx | 327 ES | 327 LDx | 327 LS | 327 Lx | 335 LS | 335 LX | 535 LK | 326 AI 25 | 327P4 | 327P5x | 525RX Mark II | 525RXT Mark II | 343FRM |
