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🔧 Upgrade your grip game—secure, stylish, and built to last!
This 2-pack of M8 x 40mm star hand knob tightening screws offers a precision-engineered, fully threaded design made from durable alloy steel and plastic. Ideal for umbrella bases and various mechanical applications, these screws provide superior grip and corrosion resistance, ensuring reliable replacements that outperform standard plastic knobs.
| ASIN | B07DLRRB3Z |
| Best Sellers Rank | #12,902 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Star Knobs |
| Brand | Kasteco |
| Color | Silver |
| Compatible Groove Diameter | 8 millimeters |
| Customer Reviews | 4.3 out of 5 stars 986 Reviews |
| Drive System | Torx |
| Exterior Finish | Black Oxide |
| Fastener Size | M8 |
| Fastener Type | Machine Screw |
| Finish Types | Powder Coated |
| Head Style | Flat |
| Head Type | Hex |
| Included Components | Knob, Lock |
| Item Diameter | 8 millimeters |
| Item Dimensions | 1.52 x 0.87 x 0.04 inches |
| Item Weight | 0.27 g |
| Item dimensions L x W x H | 1.52 x 0.87 x 0.04 inches |
| Manufacturer | KTZZ |
| Material | Metal, Plastic |
| Material Type | Metal, Plastic |
| Metal Type | Alloy Steel |
| Model | 2fdaa9b5-2fd1-4c92-a813-b552839cc870 |
| Number Of Items | 2 |
| Number of Pieces | 2 |
| Outside Diameter | 8 millimeters |
| Point Style | Round Point |
| Screw Head Style | Flat |
| Screw Point Style | Round Point |
| Set Name | 2 Pack |
| Set Screw Thread Type | Metric |
| Size Name | M8 x 40mm |
| Thread Coverage | Fully Threaded |
| Thread Size | M8 |
| Thread Style | M8 |
| Thread Type | Metric |
| UPC | 675663909047 |
| Unit Count | 2 Count |
A**Y
Fixed my canopy
This fixed my canopy swing. These are much better quality than the ones the swing came with which were plastic. The size was a fit and priced well! These screws will hold up more than the plastic.
B**4
Better than the originals
Perfect replacement for the ones in my umbrella stand that had rusted and the caps had broken off of. These seem to be great quality and they work perfectly
A**R
Good
Good
J**T
Umbrella Replacement Anchor Screw
This worked perfectly to anchor my umbrellas in their stands. Over the years the threads on the old ones became stripped and we had a sudden strong storm and all of the umbrellas went flying! The new ones hold it in tightly so that won’t happen again. Reasonably priced. Just be sure to measure your old one so you get the right size.
M**L
Perfect fit
Thread was perfect for what I needed it for
J**5
Game changer!!
This was a game changer. I ordered this use on my adjustable pool basketball hoop. It was perfect!!
N**A
Didn’t fit
Didn’t fit my kids bar. Had to return
V**U
Not the right size
Didn't fit my requirement so returned them
Trustpilot
3 weeks ago
5 days ago