Deck or Finish Screws
#9 Gauge - 305 Stainless steel.
Type 17 Point
#1 Square Drive for the 3-1/2"
#2 Square Drive for the 4"
1/4" Finish Head
Self Counter-sinking
Bits: #1 Square Drive $2 Each - (for the 3-1/2 inch screws) #2 Square Drive $2 Each - (for the 4 inch screws)
Order In the drop down box below
For use with the 3-1/2 Inch screws
For use with the 4 Inch screws
Deck Builders -
Calculate the amount of screws or nails you will need
Size
of Board
Joist centers
Fasteners
per sq ft
Fasteners per joist
Fasteners per 100 square Feet
4" Boards
16
inch OC
5.25
(2 per
joist)
525
4" Boards
20
inch OC
3
(2 per
joist)
300
6" Boards
16
inch OC
3.5
(2 per
joist)
350
6" Boards
20
inch OC
2
(2 per
joist)
200
The
above is approximate and does not take into account wastage.
The shorter your
boards the more screws you will need to allow for fastening the ends of the boards.
Add 2 extra fasteners for every board.
Bits - order 1 bit per 1000 screws
stainless-fasteners.co.uk