Grip-Rite® flat head structural screws offer versatility, speed, and longevity in load-bearing exterior wood construction projects. Available in both traditional flat head and hex head styles. 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. The flat washer head ensures maximum fastening force and features a low profile that offers a smoother finish without sharp edges on the surface.
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.
A 3-digit, ICC-recognized code is stamped into the head for easy spec reference, and a load value chart is conveniently located on every package.
No pre-drilling: 17 point coarse thread
Approved for use in treated lumber in exterior wood structural application
Protected by Grip-Rite® PrimeGuard Plus® Lifetime coating for improved corrosion resistance
Faster than lag screws in exterior structural wood applications
Flat washer head features a low profile for a smoother finish without sharp edges on the surface
Flat Head
| Material | Diameter | length | Point | Thread type | Head Type | Drive Style | QTY | Coating | Color |
| GRSSFW516820 | 5/16" | 8 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 20 | PrimeGuard Plus® | Black |
| GRSSFW5168300 | 5/16" | 8 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 300 | PrimeGuard Plus® | Black |
| GRSSFW516850 | 5/16" | 8 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 50 | PrimeGuard Plus® | Black |
| GRSSFW516625 | 5/16" | 6 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 25 | PrimeGuard Plus® | Black |
| GRSSFW5166400 | 5/16" | 6 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 400 | PrimeGuard Plus® | Black |
| GRSSFW516650 | 5/16" | 6 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 50 | PrimeGuard Plus® | Black |
| GRSSFW5165150 | 5/16" | 5 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 150 | PrimeGuard Plus® | Black |
| GRSSFW516525 | 5/16" | 5 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 25 | PrimeGuard Plus® | Black |
| GRSSFW516550 | 5/16" | 5 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 50 | PrimeGuard Plus® | Black |
| GRSSFW5165500 | 5/16" | 5 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 500 | PrimeGuard Plus® | Black |
| GRSSFW5164150 | 5/16" | 4 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 150 | PrimeGuard Plus® | Black |
| GRSSFW516420 | 5/16" | 4 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 20 | PrimeGuard Plus® | Black |
| GRSSFW516450 | 5/16" | 4 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 50 | PrimeGuard Plus® | Black |
| GRSSFW5164600 | 5/16" | 4 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 600 | PrimeGuard Plus® | Black |
| GRSSFW516318150 | 5/16" | 3-1/8 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 150 | PrimeGuard Plus® | Black |
| GRSSFW51631820 | 5/16" | 3-1/8 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 20 | PrimeGuard Plus® | Black |
| GRSSFW51631850 | 5/16" | 3-1/8 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 50 | PrimeGuard Plus® | Black |
| GRSSFW516318750 | 5/16" | 3-1/8 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 750 | PrimeGuard Plus® | Black |
| GRSSFW5163150 | 5/16" | 3 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 150 | PrimeGuard Plus® | Black |
| GRSSFW516320 | 5/16" | 3 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 20 | PrimeGuard Plus® | Black |
| GRSSFW516350 | 5/16" | 3 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 50 | PrimeGuard Plus® | Black |
| GRSSFW5163750 | 5/16" | 3 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 750 | PrimeGuard Plus® | Black |
| GRSSFW51621225 | 5/16" | 2-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 25 | PrimeGuard Plus® | Black |
| GRSSFW51621250 | 5/16" | 2-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 50 | PrimeGuard Plus® | Black |
| GRSSFW516212800 | 5/16" | 2-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 800 | PrimeGuard Plus® | Black |
| GRSSFW5161020 | 5/16" | 10 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 20 | PrimeGuard Plus® | Black |
| GRSSFW51610250 | 5/16" | 10 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 250 | PrimeGuard Plus® | Black |
| GRSSFW5161050 | 5/16" | 10 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-30 | 50 | PrimeGuard Plus® | Black |
| GRSSFW38820 | 3/8" | 8 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 20 | PrimeGuard Plus® | Black |
| GRSSFW388250 | 3/8" | 8 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 250 | PrimeGuard Plus® | Black |
| GRSSFW38850 | 3/8" | 8 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 50 | PrimeGuard Plus® | Black |
| GRSSFW38620 | 3/8" | 6 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 20 | PrimeGuard Plus® | Black |
| GRSSFW386300 | 3/8" | 6 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 300 | PrimeGuard Plus® | Black |
| GRSSFW38650 | 3/8" | 6 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 50 | PrimeGuard Plus® | Black |
| GRSSFW384150 | 3/8" | 4 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 150 | PrimeGuard Plus® | Black |
| GRSSFW38420 | 3/8" | 4 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 20 | PrimeGuard Plus® | Black |
| GRSSFW38450 | 3/8" | 4 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 50 | PrimeGuard Plus® | Black |
| GRSSFW384500 | 3/8" | 4 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 500 | PrimeGuard Plus® | Black |
| GRSSFW38312150 | 3/8" | 3-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 150 | PrimeGuard Plus® | Black |
| GRSSFW3831220 | 3/8" | 3-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 20 | PrimeGuard Plus® | Black |
| GRSSFW3831250 | 3/8" | 3-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 50 | PrimeGuard Plus® | Black |
| GRSSFW38312500 | 3/8" | 3-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 500 | PrimeGuard Plus® | Black |
| GRSSFW383150 | 3/8" | 3 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 150 | PrimeGuard Plus® | Black |
| GRSSFW38320 | 3/8" | 3 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 20 | PrimeGuard Plus® | Black |
| GRSSFW38350 | 3/8" | 3 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 50 | PrimeGuard Plus® | Black |
| GRSSFW383600 | 3/8" | 3 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 600 | PrimeGuard Plus® | Black |
| GRSSFW3816150 | 3/8" | 16 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 150 | PrimeGuard Plus® | Black |
| GRSSFW381650 | 3/8" | 16 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 50 | PrimeGuard Plus® | Black |
| GRSSFW3814150 | 3/8" | 14 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 150 | PrimeGuard Plus® | Black |
| GRSSFW381450 | 3/8" | 14 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 50 | PrimeGuard Plus® | Black |
| GRSSFW381215 | 3/8" | 12 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 15 | PrimeGuard Plus® | Black |
| GRSSFW381250 | 3/8" | 12 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 50 | PrimeGuard Plus® | Black |
| GRSSFW381015 | 3/8" | 10 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 15 | PrimeGuard Plus® | Black |
| GRSSFW381050 | 3/8" | 10 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-40 | 50 | PrimeGuard Plus® | Black |
| GRSSFW14625 | 1/4" | 6 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 25 | PrimeGuard Plus® | Black |
| GRSSFW14650 | 1/4" | 6 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 50 | PrimeGuard Plus® | Black |
| GRSSFW146600 | 1/4" | 6 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 600 | PrimeGuard Plus® | Black |
| GRSSFW145150 | 1/4" | 5 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 150 | PrimeGuard Plus® | Black |
| GRSSFW14525 | 1/4" | 5 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 25 | PrimeGuard Plus® | Black |
| GRSSFW14550 | 1/4" | 5 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 50 | PrimeGuard Plus® | Black |
| GRSSFW145750 | 1/4" | 5 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 750 | PrimeGuard Plus® | Black |
| GRSSFW14412150 | 1/4" | 4-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 150 | PrimeGuard Plus® | Black |
| GRSSFW1441225 | 1/4" | 4-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 25 | PrimeGuard Plus® | Black |
| GRSSFW1441250 | 1/4" | 4-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 50 | PrimeGuard Plus® | Black |
| GRSSFW14412750 | 1/4" | 4-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 750 | PrimeGuard Plus® | Black |
| GRSSFW1441000 | 1/4" | 4 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 1000 | PrimeGuard Plus® | Black |
| GRSSFW144150 | 1/4" | 4 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 150 | PrimeGuard Plus® | Black |
| GRSSFW14425 | 1/4" | 4 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 25 | PrimeGuard Plus® | Black |
| GRSSFW14450 | 1/4" | 4 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 50 | PrimeGuard Plus® | Black |
| GRSSFW1431000 | 1/4" | 3 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 1000 | PrimeGuard Plus® | Black |
| GRSSFW14325 | 1/4" | 3 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 25 | PrimeGuard Plus® | Black |
| GRSSFW14350 | 1/4" | 3 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 50 | PrimeGuard Plus® | Black |
| GRSSFW142121500 | 1/4" | 2-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 1500 | PrimeGuard Plus® | Black |
| GRSSFW1421225 | 1/4" | 2-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 25 | PrimeGuard Plus® | Black |
| GRSSFW1421250 | 1/4" | 2-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 50 | PrimeGuard Plus® | Black |
| GRSSFW921225 | #9 | 2-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 25 | PrimeGuard Plus® | Black |
| GRSSFW921250 | #9 | 2-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 50 | PrimeGuard Plus® | Black |
| GRSSFW911225 | #9 | 1-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 25 | PrimeGuard Plus® | Black |
| GRSSFW91123000 | #9 | 1-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 3000 | PrimeGuard Plus® | Black |
| GRSSFW911250 | #9 | 1-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 50 | PrimeGuard Plus® | Black |
| GRSSFW1031500 | #10 | 3 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 1500 | PrimeGuard Plus® | Black |
| GRSSFW10325 | #10 | 3 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 25 | PrimeGuard Plus® | Black |
| GRSSFW10350 | #10 | 3 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 50 | PrimeGuard Plus® | Black |
| GRSSFW102121500 | #10 | 2-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 1500 | PrimeGuard Plus® | Black |
| GRSSFW1021225 | #10 | 2-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 25 | PrimeGuard Plus® | Black |
| GRSSFW1021250 | #10 | 2-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive T-25 | 50 | PrimeGuard Plus® | Black |
| GRSSFW1011225 | #10 | 1-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive | 25 | PrimeGuard Plus® | Black |
| GRSSFW1011250 | #10 | 1-1/2 " | Type 17 Point | Coarse Thread | Flat Washer Head | Star Drive | 50 | PrimeGuard Plus® | Black |
LAG SCREW REPLACEMENT GUIDE
