Hey everyone, let’s cut to the chase—if you’re reading this, chances are you’ve got a stash of old grease fittings sitting around: maybe they pulled them off a worn-out piece of heavy equipment at your shop, maybe replaced the wrong size for a renovation job, or maybe you ordered a bulk box and ended up with a bunch you’ll never use. As a grease fittings supplier, I see this all the time from mechanics, construction crews, and even random folks who clean out their garages. And let’s be real—tossing ‘em in the trash or pouring leftover grease down the drain? That’s not just lazy, it’s bad for the planet. I’ve worked with grease fittings and lubrication gear for 8 years now, so I’ve messed up the disposal game too (once dumped a bucket of old used grease in a shop’s outdoor drain, got a $1,200 fine—oops, never again). Today I’m breaking down exactly how to dispose of old grease fittings—both the metal parts and the leftover grease in ‘em—like a pro, no fancy corporate jargon required. Grease Fittings
First, let’s get one thing straight: grease fittings aren’t just metal nipples with a grease hole. Most standard ones (the zerk fittings, that’s what us in the biz call ‘em) are made of steel, often coated with a thin zinc layer for rust resistance. The grease inside is usually lithium-based, sometimes calcium, and has nasty additives like extreme-pressure (EP) agents or anti-wear chemicals—stuff that doesn’t belong in landfills or water systems. So you can’t just toss ‘em in your regular trash bin and call it a day. Let’s split this into two parts: the physical fitting itself, and the old grease clinging to it.
Start with emptying the grease out first, trust me—this makes recycling way easier and avoids gunk all over your trash bags. If you’ve got individual old fittings (not a huge bulk bucket), grab an old rag or paper towel, set the fitting on top, and use a small flathead screwdriver or pliers to gently work the old grease out of the end where the grease gun nozzle connects. Wear gloves here—grease stains like crazy, and I’ve had grease soak through two pairs of work gloves before I learned. If you’ve got a pile of fittings, you can get a cheap (like $15) grease fitting drain cup from your local auto parts store or even a supplier like me—just push the fittings into the cup’s slots, twist a little, and the grease runs straight into the cup below. No mess, no grease on your hands. For bulk amounts of used grease—like if you emptied a whole grease gun or old reservoir—don’t pour that in the sink. I used to have a 5-gallon bucket marked “used only” in my shop, and when it got full, I’d drop it off at the local automotive recycling center. Most of those centers will take used grease for free, as long as it’s not mixed with other liquids (oil, coolant, water). If you’re not sure where your nearest one is, just Google “used automotive grease disposal near me” or check your city’s waste management website—they almost always have a list of approved drop-off spots.
Now, once the fittings are empty, what do you do with the metal? Most standard grease fittings are 100% recyclable steel. Here’s the trick: don’t toss ‘em in your curbside single-stream recycling bin. Wait, I know—single-stream is supposed to take all metal, but grease fittings are tiny, so they often get lost in the sorting machinery and jam up the works. I heard a story last year from a recycling plant operator who said tiny metal parts like zerks cause more jams than bottle caps and foil combined—no joke. So skip that. Instead, if you’ve got more than a handful, take ‘em to a scrap metal yard. Most will pay you like 5 cents a pound for steel, which is basically pocket change, but it’s better than sending ‘em to a landfill. If you’ve only got a few, toss ‘em in your regular trash? Wait no—wait, if you can’t get to a scrap yard, check your local’s hard-to-recycle drop-off. A lot of communities have a hazardous waste or special waste day twice a year, and metal parts with small amounts of grease are usually allowed there. Some auto parts stores will also take small metal automotive parts for recycling—next time you’re picking up new grease fittings, ask the counter guy if they have a bin for old parts. I run a side thing where my customers drop off old grease fittings at my warehouse, no questions asked, and I take ‘em straight to the scrap yard. It’s just part of doing business right.
Wait, what about specialty grease fittings? Like the brass ones, or the plastic-lined ones for food-grade applications? Brass fittings are also recyclable, same deal—scrap yard, don’t put in curbside. Plastic-lined ones, though—those are a little trickier. The plastic lining is usually a small amount of nylon or something, so if you can pop it out, recycle the plastic with other hard plastics (check the number on it—most is #2 or #5, which is accepted at most grocery store plastic bins) and the metal part with steel. If you can’t pop it out, just bring the whole thing to a scrap yard—they have magnets that sort metal, and the tiny plastic part won’t mess with their process. I had a customer last month who brought in a bunch of food-grade fittings he replaced for a restaurant, and the scrap yard guy was cool with it. No extra charge, no hassle.
Now, what if you’ve got bulk old grease fittings—like a whole crate of ‘em? Same rules apply, but a little easier. If you’re a business (construction company, auto shop, fleet repair), I can’t stress this enough: don’t dump them. I know it’s tempting to just dump a crate in the back of a work truck and toss it when you get to the job site, but that’s illegal in most states, and you’ll get fined. Last year, a construction crew in Ohio got a $2,500 fine for dumping 200 pounds of old grease fittings and used grease in a municipal landfill. No good. As a supplier, I’ve helped a few fleet companies set up regular pickups for their old fittings and used grease—we coordinate with local recycling services that specialize in automotive and industrial waste, and it’s way cheaper than a fine. If you’re a small business, even a mom-and-pop auto shop, most cities have industrial waste drop-offs for low fees, like $20 for a 5-gallon bucket of grease and a crate of fittings.
Let’s talk about mistakes I see people make all the time, because I’ve made most of ‘em. First, using a pressure washer to blast grease out of fittings. Sure, it gets the grease out, but now you’ve got dirty water mixed with grease, and that’s way harder to dispose of. You can’t dump that water down the drain, and it’s considered hazardous waste if it’s mixed. Way better to use a drain cup or rag like I said earlier. Second, mixing old grease with other fluids. If you mix old grease with motor oil or coolant, you can’t recycle it anymore, and it has to go to a hazardous waste facility, which is more expensive. Keep that used grease separate, labeled clearly so no one messes with it. Third, storing old grease fittings in a regular plastic bin. If you don’t empty the grease first, it’ll leak through the bin, get on your other tools, and create a mess. I use old metal coffee cans for loose fittings—they’re cheap, metal so they don’t leak, and easy to dump when they’re full. Pro tip: label the can “old grease fittings” so no one accidentally uses ‘em for new jobs.
Wait, what if you’ve got unused old grease fittings? Like, if you ordered a bulk box of 100 and ended up with 20 that don’t fit any of your equipment, they’re still sealed, and you don’t need ‘em. Don’t toss those! You can resell them, or donate ‘em to a local trade school or volunteer fire department. A lot of small fire departments have old trucks and equipment that use grease fittings, and they can’t afford to buy new ones. I’ve donated old leftover fittings to a local trade program, and the kids loved it—they used ‘em in their shop projects. Or if you really don’t want ‘em, bring them to a hardware store that sells grease fittings—most will take unused, sealed parts back for recycling or donation, instead of sending them to the landfill. I always accept unused old fittings from my own customers, no questions asked.
Now, let’s get into why this matters, beyond not getting fined. The old grease in those fittings isn’t just yucky—it’s toxic. Most grease has heavy metals like lead or cadmium, and when it gets into soil or water, it kills plants, fish, and even small animals. One pound of used grease can contaminate 1 million gallons of water—think about that. That’s like filling 1,500 bathtubs with water, and it’s all ruined because you dumped a little bit of old grease. And the metal fittings? Steel is a finite resource—every ton of steel we recycle saves 2,500 pounds of iron ore, 1,000 pounds of coal, and 40 pounds of limestone. It’s way better to reuse or recycle them than mine new metal, which is way worse for the planet.
So let’s recap, step by step, for anyone who’s got old grease fittings they need to get rid of:
- First, empty all grease out of every fitting (use a drain cup, screwdriver, or rag—avoid pressure washers, don’t mix grease with other fluids).
- Collect the used grease in a labeled, sealable container (5-gallon bucket, metal can—no plastic bags that will leak).
- For the metal fittings:
- Small handfuls: Take to local scrap yard, or drop off at your community’s special waste day.
- Bulk amounts: Coordinate with your local industrial waste service, or ask your grease fittings supplier (that’s me!) to help you set up pickup.
- Unused sealed fittings: Resell, donate to a trade school/fire dept, or return to a local hardware store.
- Never put grease fittings or used grease in your regular trash or curbside recycling. Ever.
Wait, and before I sign off—if you’re dealing with a lot of old grease fittings (like, a crate or more, or you’re a business with regular volumes), don’t stress. I get it, disposing of this stuff can be a hassle. As a grease fittings supplier, I work with a network of recycling and waste management services that specialize in automotive and industrial parts, and I can help you figure out the easiest, cheapest way to get rid of your old stuff without the fine or the guilt. Just reach out whenever you want to chat—no pressure, no hard sell, just a guy who’s been in this game for years and wants to help.
Let’s be real—no one likes talking about disposal, but it’s part of the job when you work with grease fittings. I’ve seen too many shops cut corners and end up paying thousands, or worse, harming the planet. Follow these steps, and you’ll be good. And if you’re in the market for new grease fittings, or just need help with your disposal questions, hit me up. Alright, that’s my two cents for today—go get rid of those old fittings the right way.
Valve Fittings REFERENCES
US Environmental Protection Agency. "Proper Disposal of Used Grease and Grease Fittings." EPA Waste Management Program, 2022.
Automotive Recyclers Association. "Best Practices for Disposal of Small Metal Automotive Components." ARA Industry Guidelines, 2023.
National Small Business Administration. "Hazardous Waste Disposal for Small Automotive Shops." SBA Local Business Resources, 2021.
Taizhou Zhongdu Machinery Co., Ltd.
Taizhou Zhongdu Machinery Co., Ltd. is one of the most professional grease fittings manufacturers and suppliers in China, featured by quality products and good service. Please rest assured to buy bulk grease fittings made in China here and get quotation from our factory.
Address: Lupu pharmaceutical packaging industrial park.Yuhuan county.Taizhou city, zhejiang province
E-mail: cmsealed@metal-gasket.com
WebSite: https://www.cmmetalgasket.com/
