GRSSFW516820-GRIP-RITE 5/16 X 8" PRIMEGUARD plus Coated T-30 Star Drive Washer Head COARSE Thread Type 17 Point Structural Screw 20 Count, Black
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- Type 17-point course thread for easy, quicker penetration into wood – no pre-drilling
- Approved for use in treated lumber in exterior wood structural applicatio
- Applications: Decking, Gazebos, Playground structures, Pergolas, and Trusses
- Protected by Grip-Rite PrimeGuard Plus Lifetime Coating for improved corrosion resistance
- Faster than lag screws in exterior structural wood applications
Grip-Rite® Structural Screws offer versatility, speed, and longevity in load-bearing exterior wood construction projects. Available in both traditional flat head and hex head styles, the hex head features Grip-Rite’s exclusive Dual Drive Power, which brings flexibility to the job site with a unique combined Hex Washer/Star Drive recess head, offering the user a choice of using the included hex driver or a star drive bit to fasten the screw. Both styles include an ID code stamped right into the head for easy spec reference and a load value chart conveniently located on every package. As a replacement for lag screws, Grip-Rite Structural Screws feature a type 17 point that translates to both efficiency and time savings by eliminating the need to pre-drill pilot holes. Our premium PrimeGuard Plus coating assures that Grip-Rite Structural Screws will last throughout a project’s lifetime. Easily identifiable, cobalt blue packaging features easy-to-read iconography, lateral load value references, and a scannable QR code that links directly to the ICC report for technical specifications.
Package Dimensions:
1.7 inches x 3.86 inches x 13.86 inches. Weight: 1.78 lb
Specification:
| Item model number | GRSSFW516820 |
| Material | Steel |
| Drive System | Torx |
| Measurement System | Imperial |
| Number of Pieces | 20 |
| Batteries Required? | No |
| Brand | Grip-Rite |
| Thread Style | Left Hand |
| Metal Type | Alloy Steel |
| Fastener Size | 5/16 in. x 8 in. |
| Manufacturer | Primesource |
| Item Package Quantity | 1 |
| Item dimensions L x W x H | 3.86 x 1.7 x 13.86 inches |
| Item Weight | 1.78 pounds |
| Thread Coverage | Partially Threaded |
| Head Style | Washer Head |
| Exterior Finish | Black |
| Part Number | GRSSFW516820 |
| Color | Black |
| Head Type | Truss |
| Product Dimensions | 3.86 x 1.7 x 13.86 inches |
| Size | 5/16 in. x 8 in. |
Shipping & Delivery
At SecretGreen, we aim to deliver your order as quickly and safely as possible.
Domestic Shipping :
Orders are typically delivered within 3–6 business days.
International Shipping:
Estimated delivery time is 12–26 business days, depending on the destination and customs processing.
You will receive a tracking number once your order has been dispatched. Delivery times may vary during holidays or due to unforeseen delays.