🔧 Screw it, get it done with style!
The GRK 5/16" x 3-1/8" Fasteners 12221 RSS Screws come in a pack of 100, designed for easy installation and structural integrity. Made from durable alloy steel with a climate-resistant finish, these screws are perfect for both indoor and outdoor projects, ensuring a reliable hold every time.
| Material | Steel |
| Drive System | Torx |
| Head Style | Round |
| Item Dimensions LxWxH | 14 x 4 x 4 inches |
| Exterior Finish | Climatek |
| Thread Size | 5/16" |
| Metal Type | Alloy Steel |
| Brand | GRK |
| Color | Gold |
| Head Type | Washer |
| Item Weight | 3.5 Pounds |
| Thread Coverage | Partially Threaded |
| Fastener Type | self-tapping |
| Thread Style | Right Hand |
| Fastener Size | 5/16" x 3-1/8" |
| Size | 5/16" x 3-1/8" |
| Manufacturer | GRK |
| Part Number | 772691122216 |
| Item Weight | 3.52 pounds |
| Product Dimensions | 14 x 4 x 4 inches |
| Item model number | 772691122216 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Measurement System | Imperial |
| Special Features | Paintable |
| Included Components | GRK Fasteners 12221 RSS 5/16" x 3-1/8" Screws 100CT |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Guaranteed against manufacturer defects |
D**A
High quality
Good screws at a good price
J**D
More convenient than using lag bolts
I bought these to use for installing components on a wooden swing set.. They are the "cats meow!" So much easier and neater than lags. The holding power is awesome! Which I would have tried them sooner.
M**D
Lag screws.
Used these to build heavy duty sawhorses with the ability to replace the top work surface with ease!
S**N
Awesome screws
Will never go back to regular screws. These are great. Never had one break under pressure like other screws. Wont slip like Phillips heads do.
N**L
Good Price
Good price for same items that you find at Home Depot and saves gas having to drive there
G**T
Craftsmanship starts HERE
Great structure screws. I will never use any other screws again. Period. Even if structure is not a concern.
J**R
Best for long term fence repair.
They last a long time. Other screws we have used rusted or didn't hold well. These are just what we needed.
S**.
Strong, easy to install
Great screws with strong holding power. I'm using them to fasten the joists for a 10'x20' treehouse.
A**R
Strong!
This screw is made to last.The only negative would be the length of the bit they provide… It could be longer!So far, it’s doing it’s job and I doubt that they will break.
V**E
screws
screws worked well ,great
C**G
Great to use
These screws are great. Drive very easily and seem to hold good. Very happy. Bit does come in package but may not be right on top.
W**Y
a
a
A**R
Awesome deal!
Great price, fast delivery.
Trustpilot
3 days ago
5 days ago