ST InsulDrill™
#12 diameter screw has ¼’ HWH. Thread design has excellent holding strength in
wood.
#1 drill point will penetrate steel thickness up to 18 gauge.
Black e-coat corrosion resistant coating is standard on all screws.
G-90 bonded sealing washer is assembled to the fastener.
Applications include retrofit & metal panels through rigid insulation to wood.
Screws are available in all standard ST Fastening Systems colors (wet-paint process).
FOR PROPER INSTALLATION, THE USE OF IMPACT DRIVERS ARE NOT RECOMMENDED FOR POWDER COATED OR ANY WET PAINTED FASTENER
| SIZE | HEAD STYLE | CARTON QTY. | WEIGHT/M |
|---|---|---|---|
| 12 x 3-3/4″ | HWH | 1000 | 26.5 |
| 12 x 4-1/2″ | HWH | 1000 | 30.7 |
| 12 x 5″ | HWH | 1000 | 33.4 |
| 12 x 6″ | HWH | 500 | 39.0 |
| 12 x 7″ | HWH | 500 | 43.7 |
| 12 x 8″ | HWH | 500 | 49.7 |
| DRILL POINT | MAJOR DIAMETER | MINOR DIAMETER | WASHER/HEAD DIAMETER | HEAD ACROSS FLATS | ULT. TENSILE STRENGTH | MIN. TORSIONAL STRENGTH | NOM. SHEAR STRENGTH | |
|---|---|---|---|---|---|---|---|---|
| #12 Diameter | Self-Drill | .215 NOM. | .30 NOM. | .400 NOM. | .250 NOM. | 1723* LBS. | 125 IN-LBS. | 1324 LBS. |
| GALVANIZED STEEL | SUBSTRATE | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| NOM. GAUGE | 18 | 20 | 22 | 24 | 26 | 3/4″ PLY | 5/8″ PLY | 1/2″ PLY | 7/16″ OSB | 2X Y.PINE | 2X SPF |
| THICKNESS | .047 | .038 | .031 | .024 | .019 | (1) | (1) | (1) | (1) | (1) | (2) |
| #12 Diameter | 653 | 489 | 406 | 319 | 263 | 795 | 564 | 457 | 177 | 1605 | 976 |
| MATERIAL | |||||||
|---|---|---|---|---|---|---|---|
| DESIGNATION | AZ55 GALVALUME | G90 | ALUMINUM | SLOT EDGE PANEL | |||
| NOM. GAUGE | 29 | 26 | 24 | 22 | 20 | 21 | 29 |
| THICKNESS | .015 | .019 | .024 | .032 | .038 | .028 | .0175 |
| Bonded Washer ( .472″ Dia) (12mm) | 671 | 845 | 1128 | 1512 | N/A | N/A | N/A |
Metal to wood fastener designed to have excellent holding strength in wood.
NOTES:
- *Tensile strength shown represents ultimate load at which the integral washer brakes from the hex washer head.
- 26 and 29 GA. values shown were obtained using 80 KSI steel sheeting. 24, 22, 20, and 18 GA. values were obtained using 50 KSI minimum steel sheeting.
