FeatureS
Powderful™ Coating System
- 2.5 mil of computer controlled powder coat is applied over zinc plating and chromate sealer.
- Unique polyester powder formulation resists harmful UV rays and chemical breakdown.
- Automated process ensures a consistent color match from batch to batch.
- POWDERFUL is completely free of volatile organic compounds (VOC), and is entirely recyclable.
- There are 35 standard colors that match high volume metal panel paint colors.
KS V-NECK™ Head Design
- HWH with V-neck design adds strength to prevent head twist off under extreme torque.
- UV resistant EPDM rubber is vulcanized to a G-90 steel backed washer to provide maximum sealing ability, which prevents leaks, even when drilled at an angle.
- High tensile steel washer provides excellent pullover strength.
- ST MAGNETIC SOCKETS are designed with an advanced forging process to fit the painted fastener securely, which helps to prevent fastener wobble upon installation.
KS LO-ROOT™ Thread Design
- Fastener thread transitions from fine to coarse. The low root design provides excellent pullout strength versus traditional or HI-LO thread forms.
MICRO-BIT® Point Design
- Drill point design consistently penetrates metal panels, which eliminates the need to “punch” the metal panels with a sharp point to start the drilling process.
- MB point is excellent for penetrating multiple thicknesses of steel often found on ridge cap or trim applications.
ALL UNPAINTED WOODBINDER MB FASTENERS COME STANDARD WITH DURASEAL® PLUS ENHANCED CORROSION RESISTANCE COATING.
FOR PROPER INSTALLATION, THE USE OF IMPACT DRIVERS ARE NOT RECOMMENDED FOR POWDER COATED OR ANY WET PAINTED FASTENER.
PULLOUT & PULLOVER VALUES ARE DETERMINED IN THE ST FASTENING SYSTEMS ENGINEERING LABORATORY USING STEEL PANELS/FRAMING & WOOD DENSITIES WHOSE STRUCTURAL PROPERTIES ARE FOUND IN PRESENT DAY PRODUCTS.
THE MB MICRO-BIT POINT MAY GENERATE SMALL METAL SHAVINGS UPON INSTALLATION. IT IS RECOMMENDED TO CLEAN/SWEEP THE METAL PANELS AFTER INSTALLATION TO PREVENT PREMATURE RUST SPECKS.
SIZE | CARTON QTY. | WEIGHT/M |
---|---|---|
10 X 1" | 3000 | 7.8 |
10 X 1-1/2" | 2500 | 9.9 |
10 X 2" | 2000 | 12.2 |
10 X 2-1/2" | 1500 | 14.3 |
10 X 3" | 1000 | 16.3 |
12 X 3/4" STITCH | 2500 | 8.8 |
KWIKSEAL MB | KWIKSEAL MB STITCH | |
---|---|---|
HEAD STYLE | 1/4” HWH | 1/4” HWH |
DRILL POINT | Micro-Bit™ | Micro-Bit™ |
MAJOR DIAMETER | .205/.191 | .215/.209 |
MINOR DIAMETER | .121/.116 | .160/.153 |
WASHER/HEAD DIAMETER | .348/.322 | .348/.322 |
HEAD ACROSS FLATS | NOM .250 | NOM .250 |
ULT. TENSILE STRENGTH | 1904 LBS. | 2900 LBS. |
MIN. TORSIONAL STRENGTH | 56 IN.-LBS. | 88 IN.-LBS. |
NOM. SHEAR STRENGTH | 1547 LBS. | 1962 LBS. |
SUBSTRATE | PENETRATION | 10-16/8 VALUE | STITCH VALUE |
---|---|---|---|
3/4” PLY | FULL | 636 | N/A |
5/8” PLY | FULL | 441 | N/A |
5/8” PLY | 1/2" | N/A | 297 |
1/2” PLY | FULL | 368 | N/A |
1/2" PLY | 1/2" | N/A | 329 |
7/16” OSB | FULL | 210 | N/A |
7/16” OSB | 1/2" | N/A | 217 |
2 X Y. PINE* | 1” | 713 | N/A |
2 X Y. PINE* | 1/2" | N/A | N/A |
2 X Y. PINE* | 1 1/2" | 1526 | 495 |
2 X SPF* | 1” | 466 | N/A |
2 X SPF* | 1 1/2" | 1216 | N/A |
2 X SPF* | 1/2" | N/A | 162 |
* Y.PINE (Yellow Pine) * SPF (Spruce Pine Fir)
SUBSTRATE | GAUGE | THICKNESS | 10-16/8 VALUE | STITCH VALUE |
---|---|---|---|---|
AZ55 Galvalume* | 29 | .014 | 378 | 378 |
AZ55 Galvalume* | 26 | .018 | 629 | 629 |
AZ55 Galvalume* | 24 | .024 | 721 | 721 |
NOTES: *w/ 12mm bonded washer

Available for powder coated fasteners.

Hex Washer Head with EPDM rubber washer provides a watertight seal on roof applications. ST Fastening Systems sockets are designed to allow for the added thickness of the powder coat.

The combination of the Micro-Bit point & transition thread from fine to coarse generates superior drill speed in metal & holding strength in wood substrates.
Notes:
- All strength values shown are ultimate values, expressed in LBS. Apply an appropriate safety factor to obtain design limits.