





🪟 Snap, fix, and refresh your screens—DIY made sleek and simple!
Prime-Line MP7729-50 Screen Frame Corners are durable white plastic connectors designed for 5/16" x 3/4" aluminum screen frames. Their square-cut design allows fast, tool-free assembly or repair of window screens. Sold in a convenient 50-pack, these corners provide a cost-effective, professional-grade solution favored by DIY enthusiasts and pros alike.




























| ASIN | B07796G578 |
| Best Sellers Rank | #11,219 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Window Screen Replacement Corners |
| Brand | PRIME-LINE |
| Brand Name | PRIME-LINE |
| Color | White |
| Customer Reviews | 4.5 out of 5 stars 1,621 Reviews |
| Finish Type | Painted |
| Finish Types | Painted |
| Global Trade Identification Number | 00049793477293 |
| Included Components | Frame Corner |
| Item Depth | 8 inches |
| Item Dimensions | 9 x 8 x 1.38 inches |
| Item Type Name | Screen Frame Corner, 5/16-Inch x 3/4-Inch, White Plastic, Pack of 50 |
| Item Weight | 0.52 Pounds |
| Item dimensions L x W x H | 9 x 8 x 1.38 inches |
| Manufacturer | Prime-Line |
| Manufacturer Part Number | MP7729-50 |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | MP7729-50 |
| Mounting Type | Corner Mount |
| Set Name | 50 |
| UPC | 049793477293 |
| Unit Count | 1.0 Count |
S**A
WORKED PERFECTLY
I had 6 window screens for which these plastic pieces had rotted, so the screens were falling apart. Everything else about the screens was fine, so I did my research and found these new plastic pieces. I watched a YouTube video on how to replace these plastic pieces. I measured carefully and ordered the right size. I was able to do just what they did on the YouTube video, which was carefully pull out the spline near the corners, replace the corner plastic pieces, and then push the screen and spline back into the channel and VOILA! It went PERFECTLY! It took me about 20 minutes per screen. Saved me around $80 per screen to have them remade at ACE Hardware. So, that's a savings of around $480. Very happy I tried this project, saved the money, and developed confidence in this new handywoman repair job.
C**Y
DYS
Perfect fit was able to have my screen revived and placed back on window to enjoy fresh Air without worrying about mosquitos
T**Y
Not "3/4 X "5/16
If you are making completely new frames, these will work for you. As stated, they are not "3/4 inch corner blocks. They are '13/16ths. subtract "1 5/8ths from you overall measurements for each run. Also they say they are "5/16ths, again not true. You have to clip the edges off, not hard to do but why? Another issue, you need to clip a small post off the inside to allow the spline to go around the corners. Other than that, they work fine.
L**.
DIY windows screen repair
Excellent product .Mi husband use them to repair the windows screen frames.Mi windows screens look great !!
S**.
Perfect corners
Great corners, do exactly what they are supposed to do. Lots in a pack so only needed to buy then once. Durable and easy to use. Slightly flexible.
W**Y
Worked great!
Works exactly as expected :-) The 50 pack is a good value if doing multiple screens.
L**O
Gracias
Gracias
J**E
Note the size is 13/16" rather than 3/4"
I purchased the 5/16 In. x 3/4 screen frame corners to fit into existing screen frame. I remember reading a review saying that the corners are actually a bit larger than 3/4". I didn't think that this would be a problem. But it was. When they arrived, I measured them to be 1/16" larger than 3/4". Unfortunately, gaining 1/8" along each side of the screen frame, in addition to gaining an additional 1/8" from new tension springs that I also purchased, required that I cut each frame member to be able to fit the screen windows into place. Other than that, I wish that the faces of the frame corners were not indented as I'm sure that this will only act to collect dust and spiders, but that's what this manufacturer offers. They do seem to be strong and durable, and they are offered at a good price compared to brand names. Note that they are a tight fit, and I had to use a rubber mallet to bring the pieces together. Overall, a good product, but my rating is for the size being different than what is stated in the dimensions. Depending on whether you are building new screens or re-using existing window screen frames, the latter may require re-sizing the aluminum frames.
Trustpilot
1 month ago
1 month ago