

🔩 Screw in Success: The ultimate wood insert kit for pros who demand precision.
This 40-piece set of 1/4-20 hex drive threaded inserts for wood features 15mm length zinc-plated carbon steel inserts with a 6mm allen wrench included. Engineered for easy screw-in installation into pre-drilled holes, these inserts provide durable, vibration-resistant fastening ideal for furniture, woodworking, and plastic projects. Trusted by professionals and DIYers alike, they combine precision engineering with bulk convenience.






| ASIN | B07QGMCNS8 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #7,508 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #15 in Nut Inserts |
| Brand | Sprite Science |
| Color | White |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,970) |
| Cutting Diameter | 0.25 Inches |
| Date First Available | April 6, 2019 |
| Exterior Finish | Zinc |
| Fastener Type | Insert |
| Finish | Zinc plated carbon steel |
| Finish Type | Zinc plated carbon steel |
| Head Style | Flat |
| Inside Thread Size | 0.410 INCH / 10.4MM |
| Installation Method | Screw-In |
| Item Diameter | 0.25 Inches |
| Item Package Quantity | 1 |
| Item Weight | 7 ounces |
| Item model number | 1/4-20WOODINSERT |
| Manufacturer | Sprite Science |
| Material | Carbon Steel |
| Measurement System | Inch, Metric |
| Metal Type | Alloy Steel |
| Number of Pieces | 40 |
| Part Number | 1/4-20WOODINSERT |
| Shape | Round |
| Size | 1/4-20 x 15mm |
| Thread Class | Class 2A |
| Thread Size | 1/4"-20 |
| Thread Style | Right Hand |
| Thread Type | Unified National Coarse (Unc) |
| Usage | Wood, Furniture |
M**B
How buying hardware should be
I used these when building a crib. They go in easy and look great. I was impressed by the quality and the attention to detail the sellers had. The bag had all the size information and drilling requirements. I used 24 of them and they each performed well. They even included an allen wrench. I have plenty of them, but it is nice to keep everything in the same spot. Now when I store them and use them later, the directions and the allen wrench will be in the same bag. Great job, this is how buying hardware should be.
J**N
Works On Plastic
I make motorcycle rear racks from cutting boards. I use these inserts for additional strap anchors using eye bolts and also for camera mounts. Works great!
J**.
Good value though quality isn’t perfect
They work as expected and the quality is decent. Minus one star because the faces are a little rough looking and they have a tends to seat slightly crooked so that they do not sit perfectly flush with the surface of the wood.
R**Y
Very good quality
These are excellent inserts, sharp deep defined threads screw and hold into wood very well, nicely machined. Use with a 3/8" pilot hole. Comes with a nice plastic container, allen key; and instruction card.
E**C
Easy to use and useful
Very easy to use and useful for removable panels to weatherproof in the winter.
J**T
Well made and easy to install
I used three 1-3/4 x 4" wide red oak cleats on the bottom side of my 2" thick oak work bench top instead of c-channel to help keep the top flat. I slotted the holes in the cleats to allow for wood expansion. I attached the cleats to the underside of the top using these 1 inch (20mm) long steel threaded inserts. I used about 25 inserts for this project. I drilled the 3/8" pilot holes using a shop made drill guide and a veritas 3/8" brad point drill bit. After drilling, I chamfered the holes with a counter sink. I drove the inserts in with a harbor freight T-handle allen driver. The inserts went in fairly tight but did not feel like they were too tight. They all drove in with out damage to the inserts or the driver. The 1/4-20 bolts used to secure the cleats fit nicely without any problems. I was able to remove a few inserts and reuse them in a different location with no problems. Best inserts I've ever used. Highly recommed.
R**D
Drill a straight hole!!!
Works perfectly
T**N
Work good easy to use
These are great. Been using them in various projects from MDF to Hardwood. Easy to use get a good drill set to go with it.
C**N
TOP Compatible avec les vis à dégagement rapide
し**う
ウッドデッキ材のハードウッド、イペに10mmのドリルで深さ15mm、C2くらいで面取りをしてから打ちました。しっかりしています。 六角レンチも付いていますが、少し短く、お手持ちのものを使うことをオススメします。(普通に使えますが) かなり硬い木でもしっかりと固定でき、ちゃんと使えました。 なくなったらリピします。
D**Y
I used a 3/8" drill for both Black Walnut and epoxy and these worked perfectly for me.
B**S
I think that i now have a lifetime supply of theses inserts. A good range of sizes neatly packaged
T**M
三脚に円盤の木片を乗せるために探していたのですが、まさにこれと言うものでした。まだ使用していませんが、所有する三脚や一脚に取り付けられました。
TrustPilot
2 周前
2 个月前