SPAX® Pan Head Unidrive Screw, Zinc, Standard Thread
SPAX pan head wood screws provide excellent drawdown and holding performance in multiple materials where a flush or countersunk installation is not possible or desired. The unique Unidrive drive system offers you the option to use with either a Phillips or square drive bit installation.
Buy SPAX Flat Head Unidrive Screws with Phillips/Square drive bit combo in bulk from wholesalers, dealers, and specialty distributers or in project-appropriate package sizes at retail hardware and home improvement stores.
SPAX® Multi-Purpose Construction Screws
SPAX Multi-Purpose Construction Screws with Patented MULTIhead technology and superior thread serrations are designed for wood. The versatile multi-material screw can also be used for a wide range of interior applications in multiple materials including masonry, drywall, and plastic.
- IRC / IBC Code Compliant DrJ TER No. 2010-02 Construction Screw Properties
- Unique 4CUT™ Point prevents splitting and requires no pre-drilling in wood
- Patented thread serrations reduce driving torque to prolong power tool battery life
- Heat treated to Grade 5 durability
Take the hassle out of your next project. Whether you’re working with wood, concrete, masonry, sheet metal, or plastic, select high-performance, professional-grade SPAX Multi-Purpose Construction Screws on your project. Request a sample pack of SPAX Multi-Purpose Construction Screws today and build strong connections on the job site.
For CAD documents, please see Technical Documents.
| Size | Drive/Bit Size | Thread | Available Pkg. Options | |||||||||
| Retail Pax | Large Retail Pax | 1 lb. Box | 3 lb. Box | 5 lb. Box | Individual | Project Pax | Contractor Pax | Mini Pail | Bulk Pail | |||
| #6 x 1/2" | #2 Phillips/#1 Sq. | Standard | 50 | 500 | ||||||||
| #6 x 5/8" | #2 Phillips/#1 Sq. | Standard | 50 | 445 | 2500 | |||||||
| #6 x 3/4" | #2 Phillips/#1 Sq. | Standard | 400 | |||||||||
| #8 x 5/8" | #2 Phillips/#2 Sq. | Standard | 320 | |||||||||
| #8 x 3/4" | #2 Phillips/#2 Sq. | Standard | 35 | 100 | 280 | 1500 | ||||||
| #8 x 1" | #2 Phillips/#2 Sq. | Standard | 30 | 100 | 225 | |||||||
| #8 x 1-1/4" | #2 Phillips/#2 Sq. | Standard | 30 | 200 | ||||||||
| #8 x 1-1/2" | #2 Phillips/#2 Sq. | Standard | 25 | 180 | ||||||||
| #8 x 2" | #2 Phillips/#2 Sq. | Standard | 140 | |||||||||
| #10 x 5/8" | #2 Phillips/#2 Sq. | Standard | 25 | 175 | ||||||||
| #10 x 3/4" | #2 Phillips/#2 Sq. | Standard | 20 | 160 | ||||||||
| #10 x 1" | #2 Phillips/#2 Sq. | Standard | 20 | 135 | ||||||||
UNIDRIVE - Pan Head - Zinc - Specification Sheet (1 MB)
DrJ TER No. 2010-02 Construction Screw Properties 1-6-2023 (1 MB)
SPAX Bit Center Options (901 KB)
#6 Pan Head Unidrive 2-D Screw Size Reference Drawing (PDF) (259 KB)
#6 Pan Head Unidrive Full Scale CAD Files (PDF) (98 KB)
#6 Pan Head Unidrive Full Scale CAD Files (DWG) (114 KB)
#6 Pan Head Unidrive Full Scale CAD Files (DXF) (365 KB)
#8 Pan Head Unidrive 2-D Screw Size Reference Drawing (PDF) (264 KB)
#8 Pan Head Unidrive Full Scale CAD Files (PDF) (113 KB)
#8 Pan Head Unidrive Full Scale CAD Files (DWG) (159 KB)
#8 Pan Head Unidrive Full Scale CAD Files (DXF) (644 KB)
#10 Pan Head Unidrive 2-D Screw Size Reference Drawing (PDF) (260 KB)
#10 Pan Head Unidrive Full Scale CAD Files (PDF) (97 KB)
#10 Pan Head Unidrive Full Scale CAD Files (DWG) (109 KB)
#10 Pan Head Unidrive Full Scale CAD Files (DXF) (350 KB)