Features
- Lifetime 40 Year Warranty Long Life Fastener.
- The ZXL is proudly molded in the USA.
- Type A fasteners are designed for use in wood framed buildings.
- Fasteners are also used in retrofit applications in which existing screws have stripped/backed out & need to be replaced with a larger diameter.
- 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 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 Replacement Fasteners
SIZE | CARTON QTY. | WEIGHT/M |
---|---|---|
14-10 x 1-1/2” A | 1500 | 23.0 |
ZXL TAPPING | |
---|---|
HEAD STYLE | 5/16" CHWH |
DRILL POINT | 30° SHARP POINT |
MAJOR DIAMETER | .254/.248 |
MINOR DIAMETER | .185/.178 |
HEAD ACROSS FLATS | .305/.311 |
WASHER FACE DIAMETER | .630 |
ULT. TENSILE STRENGTH | 1525** LBS. |
MIN. TORSIONAL STRENGTH | 125 IN-LBS. |
NOM. SHEAR STRENGTH | 2997 LBS. |
SUBSTRATE | GAUGE | THICKNESS | VALUE |
---|---|---|---|
HRS PRIME ONLY | 16 | .060 | 1181 |
HRS PRIME ONLY | 14 | .075 | 1265 |
HRS PRIME ONLY | 12 | .105 | 1525** |
3/4 PLY | N/A | FULL | 707 |
5/8 PLY | N/A | FULL | 391 |
1/2 PLY | N/A | FULL | 378 |
7/16 OSB | N/A | FULL | 238 |
2x Y.PINE | N/A | 1" | 828 |
2x Y.PINE | N/A | 1 1/2" | 1525** |
2x SPF | N/A | 1" | 594 |
2x SPF | N/A | 1" 1/2 | 1235 |
SUBSTRATE | GAUGE | THICKNESS | VALUE |
---|---|---|---|
AZ55 GALVALUME | 29 | .015 | 886 |
AZ55 GALVALUME | 26 | .019 | 1287 |
AZ55 GALVALUME | 24 | .024 | 1525** |
AZ55 GALVALUME | 22 | .032 | 1525** |

The Zinc-Aluminum alloy HWH prevents red rust from ever starting. ST Fastening Systems spring retainer sockets are designed to allow for the added thickness of the powder coat and are recommended.

The Type A is designed for wood. See Catalog page 1 for proper drill bit sizes.

Notes:
- HRS (Hot Rolled Steel)
- Pull over values calculated with EPDM rubber washer assembled to cupped head screw with .630” 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.