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Woodbinder Kwikseal MB Logo Web
Kwikseal MB Illustration Logo-08

  • Fastener designed to attach steel roofing & siding used in post-frame & residential metal roofing applications.
  • Threads transition from fine to coarse to generate superior holding strength in various wood substrates.
  • Micro-Bit point reduces metal shavings that can embed themselves in the rubber washer.
  • EPDM rubber is vulcanized to a steel washer to form an excellent seal even when driven at an angle.

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 & BASED UPON WOOD DENSITIES FOUND IN PRESENT DAY WOOD 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.


See Technical Information
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Installation
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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

Kwikseal MB Close Up

Kwikseal MB Close up Stitch

KS MB App 1

Kwikseal MB App 2

Kwikseal MB App 3

Available for powder coated fasteners.

Available for powder coated fasteners.

Hex Washer Head with EPDM rubber washer provides a watertight seal on roof applications.

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.

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:

  1. All strength values shown are ultimate values, expressed in LBS. Apply an appropriate safety factor to obtain design limits.


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