Features
- Universal Body Bolt: Suitable for cars assortment of screws and fasteners to keep the lower engine cover mounted to your car, a must-have if you have an old vehicle with brittle and rusted clips. Well made universal engine splash shield bolts repair hardware kit, plastic rivets, and u-nuts with bolts were used all over the place on many vehicles.
- Widely Used: This set of universal bumper fender clips and rivets widely used for of replace or repair for door trim, door panel, trim panel, bumper, air intake, fender, radiator shield yokes, car fender horns, side skirts, grilles, wheel cabins, engine cover hoods and fender retainer rivet clips.
- Universal Compatible: Universal Retainer Fastener Rivet Clips Compatible with Infiniti 2003-2008 G35 Sedan, Coupe and sports car, 2008-2014 G37 & G37X, 2003-2008 FX35 & FX45, 2008-2012 EX35 Compatible with Nissan 2009-2014 370Z, 2003-2009 350Z, Dodge Ram, Honda, Replace GRC-70 and more.
- Durable Materials: The body u-nuts bolts of the engine lower cover mudguard are made of high hardness steel and plastic rivets are made of high-quality nylon material, which is resistant to strong impact and high-pressure wear. It can resist factors such as road salt, water, and dirt. High Quality simple to install without complicated installation steps.
- Package Includes: The car clip kit includes 15PCS body bolts with built-in fender washers, 10PCS extruded U-nuts, 10PCS plastic push clips and 30PCS plastic Push Type Retainer Bumper Clips. 4 in 1 enclosed pack. Sufficient quantity to meet your daily replacement needs.
Specifications
Color | Black |
Size | M6 or 1/4-20 |
Unit Count | 65 |
Related Tools
A 65-piece hardware kit containing body bolts, extruded U-nuts and various plastic push-type retainers for mounting and securing engine splash shields, bumpers and fender liners. U-nuts are steel and the push clips are nylon, sized M6/1/4-20, and intended to resist road salt, water and dirt; the kit includes 15 body bolts with built-in fender washers, 10 U-nuts, 10 plastic push clips and 30 push-type retainers.
Usdrwam 65PCS Engine Under Cover Splash Shield Guard Body Bolts Screws Bumper Fender Liner Push Retainer Fastener Rivet Clips Automotive Hardware Clips Extruded U-Nuts Kit Replacement Universal Style Review
A missing splash shield screw can turn into a flapping panel pretty quickly. I keep a few universal fastener assortments in the shop for exactly that reason, and the Usdrwam 65‑piece fastener kit has earned a spot in my drawer. It’s a simple mix—steel body bolts and U‑nuts plus two styles of nylon push retainers—but it covers a surprising number of underbody and trim jobs without sending you to the dealer parts counter.
What’s in the box
- 15 steel body bolts with captive fender washers
- 10 extruded steel U‑nuts (spring clips)
- 10 plastic push clips
- 30 plastic push‑type retainers
Everything is sized around the common M6/1/4‑20 standard. The bolts thread smoothly into the U‑nuts, and the retainers are meant for roughly quarter‑inch holes—typical for splash shields, wheel‑well liners, radiator shrouds, and lower bumper covers.
The kit isn’t exotic, and that’s the point. It focuses on the fasteners most likely to go missing or snap during routine maintenance and winter driving.
Installation experience
I first opened this kit to sort out an under‑engine cover that had been hanging by a thread after an oil change. The original clips were brittle; half sheared off during removal. With the Usdrwam kit, I was able to rebuild the attachment points in one go:
- Where the OE had used push rivets into square holes along a crossmember, I clipped on U‑nuts and switched to the supplied bolts. That “bolt and washer into a spring nut” combo is a lifesaver for elongated or slightly damaged holes—the wide washers spread load, and the U‑nuts bite solidly on sheet metal.
- Where the shield met the fender liner, the nylon retainers were a direct drop‑in replacement. Insert the body, press the center pin to expand the legs, done.
On a second job—securing a loose fender liner behind a front wheel—I mixed both: a couple of bolts into U‑nuts where the original plastic threads were stripped, and push retainers where the panel still had clean holes.
Tools required are minimal: a trim‑clip plier or flat screwdriver for removal, a 10 mm socket for the bolts, and occasionally a 1/4" drill bit to clean out deformed holes. Pro tip: lightly chamfering a distorted plastic hole with the drill (by hand) makes the push retainers seat flush without forcing things.
Fitment and compatibility
Despite the “universal” label, no single kit fits every hole on every car. Here’s how this one shakes out:
- Holes around 6–6.5 mm (about 1/4") are the sweet spot for the included push retainers. In those, they lock in firmly and don’t rattle.
- If your vehicle uses larger 8–10 mm panel holes for certain splash shields (common on some trucks and European cars), these retainers will feel loose. In those cases, I either moved that location to a U‑nut and bolt or reached for a larger‑diameter clip from a different kit.
- The M6/1/4‑20 bolts and U‑nuts are broadly useful. Anywhere you can clip a U‑nut over a sheet‑metal edge or an existing rectangular hole, you can create a reliable threaded anchor.
I’ve used this kit on Japanese sedans/coupes and on a domestic pickup with good results, but I still measure first. A quick check with calipers or a drill gauge on the existing hole saves frustration.
Materials and durability
The steel hardware feels appropriately stout for bodywork. The U‑nuts are springy without being flimsy, and the bolts’ captive washers are large enough to spread load across soft plastic without chewing it up. The coating on the metal parts appears plated and has held up fine through a salty winter so far; I haven’t seen flaking or red rust on the ones I installed last season.
The nylon push retainers are on the firmer side—stiff enough to bite, but not so brittle that they shatter on the second use. I pulled a few after a month to check, and the legs still had tension. As with any plastic clip, reusing them repeatedly will shorten their life, but for fresh installs they’re solid.
What I like
- The right mix for real-world repairs. Many assortments overload you with obscure tree clips. Here, the ratio of bolts/U‑nuts to push retainers mirrors what I replace most often on splash shields and fender liners.
- Captive fender washers on the bolts. They keep soft plastic from tearing and help salvage ovalized holes.
- Honest sizing. Marketing says M6/1/4‑20 and ~1/4" retainer holes, and that’s what showed up. Everything threads and snaps together as expected.
- Value versus piecemeal buying. Grabbing individual OE clips adds up fast; one kit covers multiple jobs and still leaves spares in the drawer.
What could be better
- Limited plastic sizes. The two push-retainer styles cover the common 1/4" hole well, but there isn’t a larger option in the box. If you work on vehicles with 8–10 mm body holes, you’ll need a second kit for the big stuff.
- No labeled compartments. The packaging is simple, but a small chart or stamped sizes on the lids would help at a glance. I ended up labeling baggies myself to speed future jobs.
- Bolt length transparency. The included bolts work for most shields and liners, but publishing the shank length would make pre-planning easier for deep-stack or multi-layer panels.
Who it’s for
- DIYers who perform their own oil changes and basic maintenance and want to stop undertrays and liners from flapping.
- Mobile mechanics and shops who need a dependable “first reach” assortment for splash shields, radiators, and fender liners across many brands.
- Owners of older vehicles where original plastic fasteners have hardened and disintegrated.
If you routinely restore factory-correct engine bays or work on platforms with oddball fastener sizes, you’ll want a vehicle-specific assortment alongside this.
Tips for best results
- Measure before you commit. If the hole is clearly larger than 1/4", default to a U‑nut and bolt or source a larger retainer.
- Don’t over-torque the bolts. Snug is enough—tighten just until the washer stops rotating by hand with a 10 mm socket. Overdoing it will deform the panel or strip the U‑nut.
- Pre-fit U‑nuts. Slide them fully over the sheet-metal edge so the threaded hole aligns with the panel opening; it makes bolt insertion a one-handed job.
- Clean the holes. Mud and burrs cause most “doesn’t fit” issues. A quick pass with a pick or 1/4" bit often fixes it.
- Keep a few in the glove box. If a shield starts dragging on a trip, you’ll be glad you have a couple of retainers and a bolt in reach.
The bottom line
The Usdrwam 65‑piece fastener kit does exactly what I want from a universal assortment: it quickly restores missing and broken splash shield, bumper, and fender liner fasteners without a parts run. The mix of M6/1/4‑20 bolts with U‑nuts and two styles of nylon push retainers is well chosen for common underbody tasks, the hardware quality is up to the job, and corrosion resistance so far has been satisfactory.
It’s not a one‑kit‑fits‑all solution—if you routinely encounter larger hole sizes, you’ll need supplemental clips—but as a first‑line, general‑purpose kit, it earns its keep. I recommend it to DIYers and pros who want a reliable, budget‑friendly way to tame loose panels and replace brittle OE clips. The convenience of having the right hardware on hand is worth far more than the headache of a dangling undertray.
Project Ideas
Business
Mobile Quick-Fix Service
Offer a roadside or mobile-garage service focused on fast, low-cost splash-shield, bumper and fender-liner repairs using these universal fasteners. Market to commuters and rideshare drivers for same-day fixes. Charge a call-out fee plus parts; keep multiple kit variants in the van for different vehicle types.
Curated Universal Fastener Packs
Create targeted, labeled kits for common repairs (e.g., 'Sedan Splash Shield Repair Kit', 'Sport Compact Fender Kit') and sell on Amazon/Etsy. Include step-by-step diagrams, a small screwdriver, and model-compatibility notes. Differentiate with quality packaging, clear instructions and mix-and-match counts for DIYers and shops.
DIY Repair & Upcycling Workshops
Host local or online classes teaching how to use universal fasteners for car repairs and craft projects (jewelry, racks, art). Charge tuition and sell the hardware kit as part of the class fee. Partner with community makerspaces, auto clubs or hardware stores to reach hobbyists and classic-car owners.
Upcycled Home & Jewelry Product Line
Manufacture small-batch home goods and accessories (coatracks, magnetic tool boards, bracelets) using the kits and sell on Etsy, Instagram and at craft fairs. Emphasize eco/upcycle branding and produce attractive photography and short videos showing durability and styling to command higher margins than raw hardware.
How-To Content Hub + Affiliate Sales
Build a content channel (YouTube/TikTok/shorts) showing quick fixes, model-specific install guides and craft projects using the kit. Monetize via ads, Patreon, and affiliate links to the hardware pack. Use SEO-friendly titles like 'Fix Your Splash Shield in 10 Minutes' and include downloadable checklists or printable instructions for lead capture.
Creative
Steampunk Bolt Mosaic
Use the bolts, U-nuts and plastic retainers to create an industrial wall plaque. Arrange bolts as raised accents, use U-nuts and clips as texture and spacers, glue to a stained wooden panel or metal sheet, and add small gears or clock parts. Seal with clear coat to protect from moisture. Great as a statement piece or reclaimed-finish gift.
Reclaimed Wood Coat & Key Rack
Mount the body bolts through a strip of reclaimed wood so their heads act as heavy-duty hooks for coats, keys or leashes. Use extruded U-nuts on the back for secure wall mounting and nylon push clips as rubber bumpers to protect the wall. Make multiple sizes for hallway, garage or workshop use.
Upcycled Hardware Jewelry & Keychains
Turn smaller push-type retainers and U-nuts into beads and accents for necklaces, bracelets and keychains. Use short bolts as structural elements or clasps. Polish or paint pieces, thread through leather cord or stainless wire, and package sets as rugged, industrial-style accessories.
Weatherproof Garden Markers
Create durable plant markers by fastening a small metal or hardwood tag to a bolt with a washer head, then pressing a colored push clip on top as a cap. Drive the bolt into soil or mount to raised beds—a corrosion-resistant solution for perennial labeling that survives rain and sun.
Pocket Car-Repair Tin Organizer
Assemble compact emergency repair tins: sort a handful of bolts, U-nuts and push clips into small labeled compartments inside a metal tin. Add a mini screwdriver and instructions for common splash-shield and bumper quick-fixes. Sell or gift as "first aid" for older cars.