DEKFAST A8530-995B, #12
X 3-3/4" ROOFING SCREW. #3 PHILLIPS HEAD, 13 TPI, DRILL POINT. 1000/CARTON. PRICE/CARTON.
APPLICATIONS: For insulation attachment to
STRUCTURAL CONCRETE, wood and steel roof decks.
Coated Steel Roofing Screws, No. 12 with a self-drilling point. The screws have a 0.2-mil
(0.005 mm) galvanized plating and a 1-mil (0.025 mm) fluorocarbon coating.
Steel thickness from 22 ga (.028 in.)
through 18 ga (.045 in.): Min
Wood 2x (1-1/2" thick): Min
Plywood: Min thickness: 3/4"
FR treated; min through penetration:
Dekfast 2-7/8" hex metal plates
Dekfast 3" round plastic Dekflat plates
Steel 22 ga: 513
Steel 20 ga: 695
Steel 18 ga: 787
4000 psi concrete: 850 (1" min
2x dimensional lumber (1" penetration):
3/4" FR Plywood (through penetration):
APPROVALS: Dekfast fasteners and plates
are Metro Dade and Factory Mutual approved for attachment of insulation board to roof deck.
Refer to FM Approval Guide and Supplements for current FM approved insulation
fastening patterns. #12 fasteners exceed Factory Mutual corrosion-resistance
INSTALLATION TOOLS: 2000 – 2500 rpm screw
guns with hardened #3 Phillips. #12 Dekfast fasteners are available
pre-assembled with metal or plastic insulation plates.
#12 from 1-5/8 to 8".
#14 from 1-1/4 to 12"
#15 from 1-1/4 to 26"
head from 1-5/8 to 8"
Flat Head from 2 - 8"
assembled to 3" round plates.
Email us at
Call us at 1-800-474-7570 or 602-272-8128
You'll get a prompt reply!
similar product terms:
deck screw, roofing insulation screw, roofing screw, dekfast, dek fast,
roofing fasteners, membrane fasteners, SFS, membrane screws,
insulation board fasteners, insulation board screws
Drill point design prevents fastener walking.
Drill point cuts through gravel and BUR.
Light Grey Sentri™ XP The latest SFS
achievement in superior coating technology, light grey is less noticeable
on the underside of raw galvanized steel and painted white decking. This
is a valuable cost savings for applications where the underside of the
deck will be exposed, such as in “big box” type retail stores and modern
warehouses. Light Grey Sentri XP, used on all #12 fasteners, eliminates
the need for white fasteners in these applications. There is not a lighter
e-coating used in the flat roof market today that compares with Sentri XP
light grey for combined corrosion resistance and aesthetic appearance.
13 threads per inch for ease of installation in concrete
Deep #3 recess provides ultimate bit engagement
Head Types: #3 Phillips
Head Height: Max .118"
Head Dia: Max .448"
Thread Major Dia: .222"
Shank Dia: .167"
Strength (lbs ult.):
Torsional: 76 in-lbs min
Pull-out: (lbs avg.):