Choosing hardware consumables gets tricky when the same shopping session includes small fasteners, tooling accessories, and reference literature. The right pick depends less on the broad category and more on the job in front of you: replenishing RC car screws, setting up tapping work on a drilling machine, or identifying older vehicle parts through a catalog.
Quick take
- For the lowest listed price: the 520Pcs Universal RC Screw Kit Screws Assortment Set Hardware Fasteners for Traxx is the least expensive item here and suits shoppers focused on a compact RC fastener assortment.
- For the larger RC hardware assortment: the 1000Pcs Universal RC Screw Kit Screws Assortment Set, Hardware Fasteners for Tra gives a broader mix of M3 and M4 screws, washers, lock nuts, clips, pins, and O-circles.
- For tapping work rather than loose fasteners: the Fast Change Tapping Chuck Set Drill Tap Tool Holder Hardware Consumables is the tool-holder choice, with multiple tap sockets and a connecting handle.
- For reference material: the Unipart Catalog HARDWARE AND CONSUMABLES Small and Consumables MMM1171 is a used English-language Unipart parts-list item dated November 1982.
Listed price comparison
The listed prices run from USD 13.90 to USD 86.28, so the lowest is about 84% below the highest. That spread matters because these items are not direct substitutes: two are RC screw assortments, one is a tapping chuck set, and one is automotive parts literature.
| Product | Listed price | Price bar |
|---|---|---|
| 520Pcs Universal RC Screw Kit Screws Assortment Set Hardware Fasteners for Traxx | USD 13.90 | |
| 1000Pcs Universal RC Screw Kit Screws Assortment Set, Hardware Fasteners for Tra | USD 27.18 | |
| Unipart Catalog HARDWARE AND CONSUMABLES Small and Consumables MMM1171 | USD 42.76 | |
| Fast Change Tapping Chuck Set Drill Tap Tool Holder Hardware Consumables | USD 86.28 |
Decision matrix
| Shopping need | Best match | Why it fits | Main tradeoff |
|---|---|---|---|
| Restocking common RC car fasteners | 520Pcs Universal RC Screw Kit | Includes M3 and M4 screws, flat washers, lock nuts, O-circle, pins, R clips, and E-clips | Smaller assortment than the larger RC screw kit |
| Keeping a wider RC repair assortment organized | 1000Pcs Universal RC Screw Kit | Packed in a transparent plastic case with separate grids for different pieces | Silver or metallic finish may not match every black-hardware setup |
| Switching tap sizes on a drilling machine | Fast Change Tapping Chuck Set | Comes with a connecting handle and tap chucks for M3 through M12 ranges | It is a tooling set, not a general screw assortment |
| Looking up Unipart hardware and consumables references | Unipart Catalog MMM1171 | English-language parts list with Unipart MMM1171 identification | Used literature, not physical fasteners or tools |
Concise product notes
520Pcs Universal RC Screw Kit Screws Assortment Set Hardware Fasteners for Traxx
This is the most straightforward pick when the priority is a low-cost RC hardware assortment. The black finish, M3 and M4 sizing, round and flat screw head styles, and included washers, lock nuts, O-circle, pins, R clips, and E-clips make it a practical maintenance kit for compatible RC crawler cars, trucks, buggies, and accessories. The separate plastic-grid organization is also useful if you want to avoid mixing small parts. Its limitation is scale: it gives fewer total pieces than the larger RC kit, and the listed compatible groove diameter is 3 millimeters rather than the 4 millimeters shown for the bigger assortment.
1000Pcs Universal RC Screw Kit Screws Assortment Set, Hardware Fasteners for Tra
Choose this one when you want a broader RC fastener set with a mix of flat head and round head hex-drive screws, bolt washers, lock nuts, shell clips, E-clips, pins, and anti-shedding rings. The transparent box and separate grids are useful for keeping many small parts sorted, and the product text names a wide range of 1/8, 1/10, 1/12, and 1/16 scale RC model uses. The main limitation is that the title and details lean heavily toward RC vehicles, so it is not a general shop screw collection. The color is described as silver or another metallic shade, which may matter for visible hardware.
Fast Change Tapping Chuck Set Drill Tap Tool Holder Hardware Consumables
This is the specialist tool choice in the group. Instead of loose screws, it is built around a connecting handle body and multiple tap sockets for fast changes across M3, M4, M5, M6, M8, M10, and M12 tapping work. The description ties it to drilling machine processing and lists alloy material, a J4012B16 model, and 0.02 mm clamping accuracy. That makes it the right lane for shoppers setting up tapping operations rather than replenishing fasteners. Its limitation is equally clear: it costs the most in this comparison and does not replace washers, clips, nuts, or other small consumable hardware.
Unipart Catalog HARDWARE AND CONSUMABLES Small and Consumables MMM1171
This item belongs in a different decision lane: reference, not repair stock. It is a used Unipart parts list for hardware and consumables, with English language noted, part number MMM1171, and a November 1982 date. For someone working with older British vehicle parts, the catalog format and original Unipart identification are the main reasons to choose it. The limitation is that it is literature rather than a box of consumables, so it will not solve an immediate need for screws, washers, taps, or tool holders. Its used condition also makes it a collector or reference purchase rather than a workshop replenishment item.
How to choose among them
Start by separating parts, tools, and paper reference. If you need small metal pieces for RC maintenance, stay with the two RC screw kits. Between those, the 520-piece kit is the lower listed-price route, while the larger RC kit gives a wider assortment and a different groove-diameter attribute. If your task is cutting threads with taps on a drilling machine, the tapping chuck set is the only item here designed around tap sockets and a connecting handle. If you are identifying Unipart hardware and consumables by older part numbers, the catalog is the only matching choice.
Finish by matching finish and format to the job. Black hardware may blend better with some RC builds, while silver or metallic pieces may be easier to spot during assembly. A boxed assortment helps when you are replacing mixed small hardware over time. A tapping chuck set should be treated as a machine-tool accessory purchase, not as a consumable refill. A catalog should be chosen for part-number lookup and period reference value, not for physical repair parts.
Final recommendation
For most shoppers looking specifically at hardware consumables, the best practical choice is the 520Pcs Universal RC Screw Kit Screws Assortment Set Hardware Fasteners for Traxx at USD 13.90 if the goal is the least expensive RC fastener assortment. Step up to the 1000Pcs Universal RC Screw Kit Screws Assortment Set, Hardware Fasteners for Tra at USD 27.18 when the larger mix of screws, washers, nuts, clips, pins, and O-circles is more useful than minimizing cost.
Choose the Fast Change Tapping Chuck Set Drill Tap Tool Holder Hardware Consumables only when the need is a drilling-machine tap-holder setup with multiple tap chuck sizes; its USD 86.28 listed price sits at the top of the comparison, but it serves a different job than the screw kits. Pick the Unipart Catalog HARDWARE AND CONSUMABLES Small and Consumables MMM1171 at USD 42.76 when the goal is Unipart reference literature dated November 1982 rather than physical consumables.