This overview compares the Prox Wood Construction Screw 3.5 x 30 mm Countersunk Head Torx TX15 with similar alternative fasteners from the Prox brand ranging from 35 to 50 mm in length (supplied in packs of 20 and 500 pieces). All compared products share a 3.5 mm diameter, countersunk head, Torx TX15 drive, and partial thread, while complying with the EN 14592 standard for consistent baseline quality and reliable joints. The main practical differences lie in the screw length and package size, determining their suitability for different material thicknesses.
⚙️ Below is a specification comparison covering dimensions, drive types, thread features, and standards that influence installation depth and material compatibility.
| Comparison parameter | Prox 3.5 x 30 mm | Prox 3.5x45 mm (500 pcs) | Prox 3.5x45 mm (20 pcs) | Prox 3.5x50 mm (500 pcs) | Prox 3.5x40 mm (25 pcs) | Prox 3.5x35 mm (30 pcs) | Practical conclusion |
|---|
| Length | 30 mm | 45 mm | 45 mm | 50 mm | 40 mm | 35 mm | Greater length provides deeper penetration into supporting structural elements. |
| Diameter | 3.5 mm | 3.5 mm | 3.5 mm | 3.5 mm | 3.5 mm | 3.5 mm | Identical diameter suits thin wooden components and pre-drilled holes. |
| Head type | Countersunk | Countersunk | Countersunk | Countersunk | Countersunk | Countersunk | Ensures a flush finish with the surface across all options. |
| Drive | Torx TX15 | Torx TX15 | Torx TX15 | Torx TX15 | Torx TX15 | Torx TX15 | Provides high torque transfer and prevents bit slippage. |
| Thread type | Partial | Partial | Partial | Partial | Partial | Partial | Ensures tight pulling of wooden elements without splitting risks. |
| Standard | EN 14592 | EN 14592 | EN 14592 | EN 14592 | EN 14592 | EN 14592 | Meets consistent structural safety requirements across all products. |
◎ The table below evaluates which product variant is most suitable for specific use cases, project scopes, and material thicknesses.
| Use case | Recommended product | Why |
|---|
| Thin wooden elements and furniture assembly | Prox Wood Construction Screw 3.5 x 30 mm Countersunk Head Torx TX15 | The shorter 30 mm length is optimal for fastening thin laths and components where excess length is unnecessary. |
| Regular construction work (45 mm) | Prox Wood Construction Screw 3.5x45 mm Torx TX15 Countersunk Head 500 pcs | The large bulk pack is cost-effective for continuous assembly of medium-thickness wooden structures. |
| Small repairs or one-off tasks (45 mm) | Prox Wood Construction Screw 3.5x45 mm Partial Thread Countersunk Head TX15 20 pcs | A smaller pack size is convenient for isolated tasks requiring a 45 mm penetration depth. |
| Framing and thicker timber joints | Prox Wood Construction Screw 3.5x50 mm Partial Thread TX15 Torx Countersunk Head 500 pcs | The maximum 50 mm length delivers secure fastening for more robust timber elements. |
| General carpentry (40 mm) | Prox Wood Construction Screw 3.5x40 mm TX15 Countersunk Head Partial Thread 25 pcs | A 40 mm length serves as a versatile middle-ground for standard wood assembly jobs. |
The main difference of the Prox Wood Construction Screw 3.5 x 30 mm Countersunk Head Torx TX15 compared to the alternatives is its 30 mm length. It is ideally suited for thinner timber components and general assembly tasks where extra penetration depth is not required. Choose this option if you are working with lighter wooden elements, while selecting longer variants for thicker structural framing.
