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- Tamper resistant 2-way re-usable security screw
- Requires special insert bit to fasten and remove
- Usable for higher-torque applications
- 5-Lobe Pin TX security screw has a unique 5-Lobe TX head
5-Lobe Pin TX Countersunk Security Machine Screws offer a more secure version of the more common 6 lobe TX security screws, instead featuring a 5 lobe design reminiscent of a flower petal.
This design combined with the security pin in the drive recess means that these screws are only removable using matching drive bits.
Button Head 5-lobe Pin TX screws are also available.
Available in A2 Stainless Steel and A4-70 Stainless Steel from Fastenright, with Steel Zinc plated available to order.
Sizes from M3 to M8 as standard and lengths ranging from 6mm to 40mm.
| Technical Data & Availability | |||||||||||||||
| Thread Diameter | M3 | M4 | M5 | M6 | M8 | ||||||||||
| dk (mm) | 5.7 | 7.8 | 7.8 | 11.8 | 16.8 | ||||||||||
| k (mm) | 1.7 | 2.3 | 2.8 | 3.3 | 4.4 | ||||||||||
| Tool Size | – | No. 1 | No. 2 | No. 2 | No. 2.5 | ||||||||||
| Available Lengths (L) | M3 | M4 | M5 | M6 | M8 | ||||||||||
| 6mm |  |
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| 8mm | |
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| 10mm | |
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| 12mm | |
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| 16mm | |
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| 20mm | |
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| 25mm | |
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| 30mm | |
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| 40mm | |
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| = A2 Stainless Steel // = A4-70 Stainless Steel |
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