This screw basically just holds things together. It's a fastener – you tighten it to clamp two parts securely. The hex head means you use a six – sided wrench to turn it, which gives you a good, solid grip. The washer is the flat little disc under the head of the screw; it spreads out the pressure, prevents the screw from digging into the material you’re fastening, and helps maintain a good seal. Now, these can be used all over a vehicle, but since this one's listed under drivetrain, axles and shafts, it’s almost certainly holding something related to those components together. It could be securing a bracket, a sensor, a dust shield, or part of the axle assembly itself. It’s a supporting player, not the main event, but critical to everything working correctly. These little guys might seem insignificant, but if one goes missing or gets damaged, things can start to rattle, vibrate, or even come loose. You’ll notice if one is gone, usually as a clunking sound or a vibration you didn't have before. It could also lead to more serious problems if it’s holding something safety – related. The washer acts like a shield, preventing damage and ensuring even pressure. You can find a replacement like this pretty easily, Fixparts Online has a good selection of these fasteners, and keeping a few spares around is always a good idea for DIY repairs. They’re cheap to replace, but a headache if they fail and cause bigger issues down the road. Expert assistance: Hex Head Screw with Washer (MPN 33176760343) is covered by a 12-month warranty!

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