Features
- Lifetime 40 Year Warranty Long Life Fastener.
- The ZXL is proudly molded in the USA.
- Fastener is designed to attach long-life metal roof panels such as GALVALUME to structural steel joists up to .500” thick.
- 5/16” Cupped HWH ZAMAC Zinc-Aluminum Alloy provides lifetime protection against red rust on the head & washer face. A written warranty is available upon request.
- The head & washer face captures the rubber EPDM washer even when driven at an angle & are designed to maximize Pull over strength.
- For structural steel applications, a screwgun with RPM under 2000 is recommended for best performance.
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.
Check Out Other Heavy Gauge Fasteners
| SIZE | CARTON QTY. | WEIGHT/M |
|---|---|---|
| 12-24 x 1-1/4” | 2000 | 25.8 |
| ZXL HG | |
|---|---|
| HEAD STYLE | 5/16" CHWH |
| POINT DIAMETER | .199/.195 |
| MAJOR DIAMETER | .215/.209 |
| MINOR DIAMETER | .164 REF. |
| WASHER FACE DIAMETER | .630 |
| HEAD ACROSS FLATS | NOM .312" |
| NOM. TENSILE STRENGTH | 2240** LBS. |
| MIN. TORSIONAL STRENGTH | 100 IN-LBS. |
| NOM. SHEAR STRENGTH | 1999 LBS. |
| SUBSTRATE | GAUGE | THICKNESS | VALUE |
|---|---|---|---|
| HRS PRIMED ONLY | 14 | .075 | 924 |
| HRS PRIMED ONLY | 12 | .105 | 1627 |
| HRS PLATE | 3/16" | .187 | 2240 |
| HRS PLATE | 1/4" | .250 | 2240 |
| SUBSTRATE | GAUGE | THICKNESS | VALUE |
|---|---|---|---|
| AZ55 GALVALUME | 29 | .014 | 637 |
| AZ55 GALVALUME | 26 | .018 | 1045 |
| AZ55 GALVALUME | 24 | .024 | 1303 |
| AZ55 GALVALUME | 22 | .030 | 1958 |
Sharp drill point & long flute length assures proper clearance of heavy gauge metal before any thread engagement begins.
The Zinc-Aluminum alloy HWH prevents red rust from ever starting. ST Fastening Systems spring retainer sockets are recommended. ST Fastening Systems sockets are designed to allow for the added thickness of the powder coat.
Download Technical Information PDFNotes:
- HRS (Hot Rolled Steel)
- Pull over values calculated with EPDM rubber washer assembled to cupped head screw with .555” washer face.
- All strength values shown are ultimate values, express in LBS. Apply an appropriate safety factor to obtain design limits.
- ** The value tabulated is the force at which the ZXL head breaks from the carbon steel body.
