Self-drilling screws for the building and construction industries. For those application fi x ig to steel, timber and plasterboard to steel. Self-drilling screws intended for drilling and tapping into layered or unlayered steel with a minimum total thickness of 0.9mm shall be type ASD, BSD or CSD TYPE ASD and BSD screw have spaced threads and type CSD screws have threads of UNC machine screw diameter-pitch combination with a 60 degree basic thread form.
The drill points for ASD, BSD and CSD shall be No 2, No. 3 and No. 4 designed to accommodate different panel thicknesses.
I. IFI Standard:
There are Type BSD and Type CSD screw types shall conform to those specified for Type B and Type C tapping screws, respectively. As specified in ASME B18.6.4 or SAE J478.
Phillips Bugle Head-Black Phosphate
Size |
Drive Size |
Application |
# 6 x 1" |
# 2 Phillips |
Recommended for the application of D/W or Gyp board to 12-20 gauge metal studs. 2500 rpm is recommended ma x imum drive speed; can also be used in wood to metal fastening where wood is predrilled. |
# 6 x 1-1/8" |
# 2 Phillips |
# 6 x 1-1/4" |
# 2 Phillips |
# 6 x 1-5/8" |
# 2 Phillips |
# 6 x 1-7/8" |
# 2 Phillips |
# 8 x 2-3/8" |
# 2 Phillips |
# 8 x 2-5/8" |
# 2 Phillips |
# 8 x 3" |
# 2 Phillips |
Phillips Bugle Head-Zinc Plated
Size |
Drive Size |
Application |
# 6 x 1" |
# 2 Phillips |
Recommended for the application of D/W or Gyp board to 12-20 gauge metal studs. To be used when end-user requires additional corrosion resistance of zinc plating. Recommended minimum drive speed is 2500rpm. |
# 6 x 1-1/8" |
# 2 Phillips |
# 6 x 1-1/4" |
# 2 Phillips |
# 6 x 1-5/8" |
# 2 Phillips |
# 6 x 1-7/8" |
# 2 Phillips |
# 8 x 2-3/8" |
# 2 Phillips |
# 8 x 2-5/8" |
# 2 Phillips |
# 8 x 3" |
# 2 Phillips |
Phillips Pan Head Framer-Black Phosphate
Size |
Drive Size |
Application |
# 7 x 7/16" |
# 2 Phillips |
For heavy 16-20 gauge metal stud. Recommended ma x imum 2500 rpm drive speed. |
Phillips Pan Head Framer-Zinc Plated
Size |
Drive Size |
Application |
# 7 x 7/16" |
# 2 Phillips |
For heavy 16-20 gauge metal stud. Recommended ma x imum 2500 rpm drive speed. |
Phillips Modified Truss Head / Black Phosphate Or Zinc-Plated
Size |
Drive Size |
Application |
# 8 x 1/2" |
# 2 Phillips |
For the application of metal lathe to heavy 12-20 gauge metal studs. Recommended drive speed is 2500rpm. |
# 8 x 3/4" |
# 2 Phillips |
# 8 x 1" |
# 2 Phillips |
# 8 x 1-1/4" |
# 2 Phillips |
# 8 x 1-5/8" |
# 2 Phillips |
Square Drive Trim Head-Zinc Plated
Size |
Drive Size |
Application |
# 6 x 1" |
# 1 Robertson SQ |
Finish screw for application of base board or trim through D/W to heavy 12-20 ga. metal stud. |
# 6 x 1-5/8" |
# 1 Robertson SQ |
# 6 x 2-1/4" |
# 1 Robertson SQ |
# 8 x 3" |
# 2 Robertson SQ |
He x Washer Head Self Drill-Zinc Plated
Size |
Thread Pitch |
Drive Size |
Drill Point Size |
Optimum Driving Speed |
Range Of Fastening |
6 x 3/8 |
20 |
1/4" |
#2 |
2500 rpm |
.035 - .090 |
6 x 1/2 |
20 |
1/4" |
#2 |
2500 rpm |
.035 - .090 |
6 x 3/4 |
20 |
1/4" |
#2 |
2500 rpm |
.035 - .090 |
8 x 1/2 |
18 |
1/4" |
#2 |
2500 rpm |
.035 - .100 |
8 x 1/2 SLOTTED |
18 |
1/4" |
#2 |
2500 rpm |
.035 - .100 |
8 x 5/8 |
18 |
1/4" |
#2 |
2500 rpm |
.035 - .100 |
8 x 3/4 |
18 |
1/4" |
#2 |
2500 rpm |
.035 - .100 |
8 x 1 |
18 |
1/4" |
#2 |
2500 rpm |
.035 - .100 |
8 x 1-1/4 |
18 |
1/4" |
#2 |
2500 rpm |
.035 - .100 |
8 x 1-1/2 |
18 |
1/4" |
#2 |
2500 rpm |
.035 - .100 |
8 x 2 |
18 |
1/4" |
#2 |
2500 rpm |
.035 - .100 |
10 x 1/2 |
16 |
5/16" |
#2 |
2500 rpm |
.035 - .110 |
10 x 5/8 |
16 |
5/16" |
#2 |
2500 rpm |
.035 - .110 |
10 x 3/4 |
16 |
5/16" |
#2 |
2500 rpm |
.110 - .175 |
10 x 1 |
16 |
5/16" |
#2 |
2500 rpm |
.110 - .175 |
10 x 1-1/4 |
16 |
5/16" |
#2 |
2500 rpm |
.110 - .175 |
10 x 1-1/2 |
16 |
5/16" |
#2 |
2500 rpm |
.110 - .175 |
10 x 2 |
16 |
5/16" |
#2 |
2500 rpm |
.110 - .175 |
12 x 3/4 |
14 |
5/16" |
#3 |
2500 rpm |
.110 - .210 |
12 x 1 |
14 |
5/16" |
#3 |
2500 rpm |
.110 - .210 |
12 x 1-1/4 |
14 |
5/16" |
#3 |
2000 rpm |
.110 - .210 |
12 x 1-1/2 |
14 |
5/16" |
#3 |
2000 rpm |
.110 - .210 |
12 x 2 |
14 |
5/16" |
#3 |
2000 rpm |
.110 - .210 |
12 x 3 |
14 |
5/16" |
#3 |
2000 rpm |
.110 - .210 |
14 x 3/4
|
14 |
3/8" |
#3 |
1500 rpm |
.110 - .250 |
14 x 1-1/4 |
14 |
3/8" |
#3 |
1500 rpm |
.110 - .250 |
14 x 1-1/2 |
14 |
3/8" |
#3 |
1500 rpm |
.110 - .250 |
14 x 2 |
14 |
3/8" |
#3 |
1500 rpm |
.110 - .250 |
14 x 3 |
14 |
3/8" |
#3 |
1500 rpm |
.110 - .250 |
14 x 4 |
14 |
3/8" |
#3 |
1500 rpm |
.110 - .250 |
Hex Washer Head Self Drill # 4 Point-Zinc Plated
Size |
Thread Pitch |
Drive Size |
Drill Point Size |
Optimum Driving Speed |
Range Of Fastening |
12 x 7/8 |
24 |
5/16" |
#4 |
1000 rpm |
.210 - .345 |
Hex Washer Head Self Drill # 5 Point-Zinc Plated
Size |
Thread Pitch |
Drive Size |
Drill Point Size |
Optimum Driving Speed |
Range Of Fastening |
12 x 1-1/4 |
24 |
5/16" |
#5 |
1000 rpm |
.250 - .500 |
Phillips Pan Head Self Drill-Zinc Plated
Size |
Thread Pitch |
Drive Size |
Drill Point Size |
Optimum Driving Speed |
Range Of Fastening |
6 x 3/8 |
20 |
# 2 Phillips |
# 2 |
2500 rpm |
.035 - .090 |
6 x 1/2 |
20 |
# 2 Phillips |
# 2 |
2500 rpm |
.035 - .090 |
6 x 3/4 |
20 |
# 2 Phillips |
# 2 |
2500 rpm |
.035 - .090 |
8 x 3/8 |
18 |
# 2 Phillips |
# 2 |
2500 rpm |
.035 - .100 |
8 x 1/2 |
18 |
# 2 Phillips |
# 2 |
2500 rpm |
.035 - .100 |
8 x 3/4 |
18 |
# 2 Phillips |
# 2 |
2500 rpm |
.035 - .100 |
8 x 1 |
18 |
# 2 Phillips |
# 2 |
2500 rpm |
.035 - .100 |
8 x 1-1/4 |
18 |
# 2 Phillips |
# 2 |
2000 rpm |
.035 - .100 |
8 x 1-1/2 |
18 |
# 2 Phillips |
# 2 |
2000 rpm |
.035 - .100 |
10 x 1/2 |
16 |
# 2 Phillips |
# 2 |
2000 rpm |
.035 - .100 |
10 x 5/8 |
16 |
# 2 Phillips |
# 2 |
2000 rpm |
.035 - .100 |
10 x 3/4 |
16 |
# 2 Phillips |
# 3 |
2000 rpm |
.035 - .175 |
10 x 1 |
16 |
# 2 Phillips |
# 3 |
2000 rpm |
.035 - .175 |
10 x 1-1/4 |
16 |
# 2 Phillips |
# 3 |
2000 rpm |
.035 - .175 |
10 x 1-1/2 |
16 |
# 2 Phillips |
# 3 |
2000 rpm |
.035 - .175 |
10 x 2 |
16 |
# 2 Phillips |
# 3 |
2000 rpm |
.035 - .175 |
Phillips Wafer Head Self Drill-Zinc Plated
Size |
Thread Pitch |
Drive Size |
Drill Point Size |
Optimum Driving Speed |
Range Of Fastening |
10 x 3/4 |
24 |
# 2 Phillips |
# 3 |
1500 rpm |
1/4" Plywood |
10 x 1 |
24 |
# 2 Phillips |
# 3 |
1500 rpm |
3/8" Plywood |
10 x 1-1/4 |
24 |
# 2 Phillips |
# 3 |
1500 rpm |
1/2" Plywood |
10 x 1-1/2 |
24 |
# 2 Phillips |
# 3 |
1500 rpm |
3/4" Plywood |
Phillips Wafer Head Self Drill W/Wings-Zinc Plated
Size |
Thread Pitch |
Drive Size |
Drill Point Size |
Optimum Driving Speed |
Range Of Fastening |
10 x 1-7/16 |
24 |
# 2 Phillips |
# 3 |
1500 rpm |
Plywood up to 3/4" to metal framing member up to.175 |
Phillips Flat Head Self Drill W/Wings-Zinc Plated
Part Number |
Thread Pitch |
Drive Size |
Drill Point Size |
Optimum Driving Speed |
Wooden Header Thickness |
Metal Thickness |
12 x 1-5/8 |
24 |
# 2 Phillips |
# 2 |
1500 rpm |
3/8" to 5/8" |
up to .175 |
12 x 2 |
24 |
# 3 Phillips |
# 3 |
1500 rpm |
1/2" to 3/4" |
up to .210 |
12 x 2-1/2 |
24 |
# 3 Phillips |
# 3 |
1500 rpm |
7/8" to 1-1/4" |
up to .250 |
14 x 2-3/4 |
20 |
# 3 Phillips |
# 4 |
1000 rpm |
1-1/2" to 1-3/4" |
up to .250 |
14 x 3-1/4 |
20 |
# 3 Phillips |
# 4 |
1000 rpm |
2" to 2-1/4" |
up to .250 |
Phillips Flat Head Self Drill-Zinc Plated
| 8 x 1/2 |
18 |
#2PH |
#2PH |
Recommended drive speed 2500 RPM. For counter-sunk holes. Aluminum to aluminum or steel to steel 0.035-0.100 |
| 8 x 3/4 |
18 |
#2PH |
#2PH |
| 8 x 1 |
18" |
#2PH |
#2PH |
| 10 x 3/4 |
16 |
#2PH |
#3PT |
For counter-sunk holes. Aluminum to aluminum or steel to steel 0.035 -0.176 |
| #10 x 1 |
16 |
#2PH |
#3PT |
| #10 x 1-1/2 |
16 |
#2PH |
#3PT |
Phillips Pancake Head Zinc Plated
 |
10-16 x 5/8 |
3 |
Low profile head attaches panel clip to steel studs.
For framing steel studs to steel.
Type A for wood studs. |
| 10-16 x 1 |
3 |
| 10-12 x 1 |
A |
Phillips Oval Head Zinc Plated
 |
8-18 x 3/4 |
2 |
Recommended drive speed 2500RPM. For countersunk holes. Aluminum to steel or steel.
.035-.100 |
| 8-18 x 1 |
2 |
| 8-18 x 1-1/4 |
2 |
| 8-18 x 1-1/2 |
2 |
Phillips Oval Head SEMS W/Finishing Washer Zinc Plated
 |
8-18 x 3/4 |
2 |
Attaches carpet or vinyl to 14 gauge or thinner. |
| 8-18 x 1 |
2 |
| 8-18 x 1-1/4 |
2 |
Cement Board Screw
Phil Wafer Head 8 Nibs Type BSD #2PT Drill Point
Phil Wafer Head 8 Nibs Hi-Lo Spoon Point
II. DIN7504:
DIN7504 K: Ind. He x Waher Head
DIN7504 P: Phil Flat Head
DIN7504 N: Phil Pan Head
Dimensions and designations
table 1: Screw Types and Designations
Type |
lllustration |
Qther Dimensions As In |
Example of Designation |
| K |
 |
DIN 6928 |
Screw DIN 7504-ST4, 2 x 13-K |
| L |
 |
DIN 6928; slot dimensions as in DIN 962 |
Screw DIN 7504-ST4, 2 x 13-L |
| M |
 |
ISO 7049 |
DIN 7504-ST4, 2 x 13-M-H |
| O |
 |
ISO 7050 |
DIN 7504-ST4, 2 x 13-O-H |
| R |
 |
ISO 7051 |
DIN 7504-ST4, 2 x 13-R-H |
III. Australian Standards (AS3566):
IND. He x Flange Head
Phil Wafer Head / Modi Truss Head
Phil Thin Wafer Head
Millimetres
Size Designation |
Across Flats
(A) |
Washer Dla.
(B) |
Across Corners (Min)
(C) |
Hex agon Height
(E) |
Head Height
(G) |
Indent Depth (Max)
(H) |
Fillet Radius (Min)
(R) |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
No 6 |
6.20 |
6.35 |
8.38 |
9.14 |
6.91 |
1.90 |
2.29 |
3.05 |
3.43 |
1.14 |
0.25 |
No 8 |
6.20 |
6.35 |
9.40 |
10.29 |
6.91 |
2.41 |
2.79 |
3.68 |
4.32 |
1.14 |
0.38 |
No 10 |
7.78 |
7.92 |
10.67 |
11.43 |
8.64 |
2.79 |
3.30 |
4.32 |
4.83 |
1.40 |
0.38 |
No 12 |
7.78 |
7.92 |
13.97 |
14.78 |
8.64 |
3.61 |
3.94 |
5.08 |
5.92 |
1.65 |
0.51 |
No 14 |
9.32 |
7.92 |
13.97 |
15.49 |
10.39 |
4.06 |
4.70 |
5.84 |
6.60 |
1.91 |
0.76 |
Note: For concentricity tolerances, see Clauses 1. 8. 4 and 1. 8. 5.
Figure 1.2. He x agon Washer Head
Millimetres
Size Designation |
Head Dia. (dk) |
Taper Dia. (da) |
Head Height (k) |
Cross Recess No. |
CrossRecess Penetration Value |
Radius (r) |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
ST 3.5 (No. 6) |
6.73 |
6.86 |
4.06 |
4.32 |
1.39 |
1.65 |
Type H Ko. 2 |
1.27 |
1.88 |
0.25 |
0.51 |
ST 4.2 (No. 8) |
7.77 |
8.18 |
4.57 |
4.83 |
1.65 |
1.90 |
Type H Ko. 2 |
1.27 |
1.90 |
0.25 |
0.51 |
ST 4.8 (No.10) |
8.94 |
9.53 |
4.83 |
5.21 |
1.52 |
2.03 |
Type H Ko. 2 |
1.90 |
2.67 |
0.38 |
0.89 |
Millimetres
Size Designation |
Head Dia. (dk) |
Taper Dia. (da) |
Head Height (k) |
Cross Recess No. |
Cross Recess Penetration Value |
Radius (r) |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
ST 4.8 (No.10) |
9.07 |
9.47 |
4.83 |
5.26 |
1.65 |
1.91 |
Type H No. 2 |
2.13 |
2.74 |
0.38 |
0.89 |
| 
