Spax Back Screws PZ2 4.0x13 mm – Zinc-Plated Full-Body Thread for Secure Fastening
Spax back screws are self-tapping fasteners designed for joining materials from the reverse side, eliminating the need for access to the front surface. The Pozidriv head profile provides reliable torque transmission and reduces the risk of cam-out during installation.
Full-body thread delivers consistent holding power in wood, particleboard, and soft metals
Zinc-plated surface provides corrosion resistance for indoor and sheltered outdoor applications
Pozidriv drive ensures secure seating and reduces screw head stripping under torque
1,000-piece quantity supports high-volume assembly tasks in workshop and production environments
What sets Spax back screws apart
The full-thread design extends along the entire screw shaft, maximising pull-out resistance compared to partial-thread alternatives. The zinc plating offers a practical balance of protection and cost-effectiveness for general-purpose fastening where high humidity exposure is not the primary concern.
Ideal for...
Workshop assembly, furniture construction, electrical enclosure mounting, and general DIY projects where a flush or countersunk finish is required on the visible side. Suitable for tradespeople and hobbyists who need reliable, repeatable fastening without front-side access.
Application of Spax Back Screws
Position the workpiece so the screw entry side is accessible from the back
Pre-drill a pilot hole matching the screw core diameter
Drive the screw using a Pozidriv-bit screwdriver or drill driver until the head sits flush
Repeat for remaining fastening points; the 1,000-piece pack supports batch assembly
Spax is a German fastener manufacturer specialising in self-tapping screws, dowels, and assembly components for professional and DIY applications. The brand focuses on precision-engineered solutions for wood, metal, and composite materials, with product lines covering structural, decorative, and general-purpose fastening.
They are suitable for wood, particleboard, MDF, and soft metals. The full-thread design provides reliable grip in these materials when a pilot hole is used.
Pozidriv is a screw drive type with a cross-shaped recess and additional contact points. It offers better torque distribution and reduced cam-out compared to a standard Phillips drive.
The zinc plating provides basic corrosion resistance for indoor and sheltered outdoor applications. For exposed or high-humidity environments, a stainless-steel or specialised coating variant should be selected.
The pack contains 1,000 Spax back screws, PZ2 drive, 4.0 mm diameter, 13 mm length, zinc-plated, full thread.
Yes, the screws can be removed and reused in the same or similar materials. The Pozidriv drive maintains its shape under normal installation and removal torque.
Subscribe to the newsletter
New arrivals, promotions and exclusive offers — straight to your inbox.
Please complete your information below to login.
Sign In
Create New Account