This product page features the Prox Wood Construction Screw 4x45 mm Partial Thread Countersunk Head TX20 500 pcs. It is compared here with similar wood construction screws from the same brand: Prox 4x70mm, Prox 4x60 mm, Prox 4x45 mm (20 pcs), Prox 4.5x80 mm, and Prox 4.5x70 mm. All these products share the same intended use for timber structures, a TX20 drive, a countersunk head for a flush finish, partial threads, and EN 14592 compliance, while differing in length, diameter, and package quantity.
⚙️ The technical specifications comparison covers the diameter, length, thread length, drive type, head shape, standards compliance, and pack size for each option.
| Parameter | Prox 4x45 mm (500 pcs) | Prox 4x70mm | Prox 4x60 mm | Prox 4x45 mm (20 pcs) | Prox 4.5x80 mm | Prox 4.5x70 mm | Practical conclusion |
|---|
| Diameter | 4 mm | 4 mm | 4 mm | 4 mm | 4.5 mm | 4.5 mm | Thicker shafts on the 4.5 mm models provide higher shear strength for load-bearing joints. |
| Length | 45 mm | 70 mm | 60 mm | 45 mm | 80 mm | 70 mm | Different lengths allow you to match the screw to the thickness of the joined wooden elements. |
| Thread length | 25 mm | 40 mm | 36 mm | 25 mm | 50 mm | 40 mm | Partial threading firmly draws wood pieces together, with thread length scaling to total screw length. |
| Drive and head | TX20, countersunk | TX20, countersunk | TX20, countersunk | TX20, countersunk | TX20, countersunk | TX20, countersunk | All products provide high torque transfer without slipping and allow a flush surface finish. |
| Pack size | 500 pcs | 250 pcs | 250 pcs | 20 pcs | 250 pcs | 25 pcs | Large packs are cost-effective for extensive projects, whereas small packs suit minor repairs. |
◎ The suitability table below evaluates usage scenarios, project scope, and fastening requirements to help you choose the right variant for your woodworking tasks.
| Use case | Recommended product | Why |
|---|
| General woodworking and joining thinner boards | Prox Wood Construction Screw 4x45 mm Partial Thread Countersunk Head TX20 500 pcs | The optimal 45 mm length and 4 mm diameter fit thinner timber well, while the large pack size supports repetitive fastening tasks. |
| Installing thick timber beams and structural framing | Prox 4.5x80 mm or Prox 4x70mm | Increased length and thickness deliver deeper penetration and higher load capacity in heavy wood sections. |
| One-off quick household fixes | Prox 4x45 mm TX20 Countersunk Head Partial Thread 20 pcs | A small 20-piece pack avoids buying excess hardware when only a few fasteners are needed. |
Recommendation: Choose the Prox Wood Construction Screw 4x45 mm Partial Thread Countersunk Head TX20 500 pcs if you are performing standard assembly or finishing work with medium-thickness wood and require a large supply in a single box. For thicker timber beams, select the longer 4.5x80 mm or 4x70 mm variants instead, and opt for the small 20-piece pack for minor household fixes.
