- Tamper resistant 2-way re-usable security screw
- Requires special insert bit that Is registered and restricted for controlled availability
- Usable for higher-torque applications
- TORX Plus® Security screw has a unique 5-Lobe Torx head
Security 5-Lobe Pin TX Countersunk Head Captive 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.
Captive screws are designed with an unthreaded portion below the head – often referred to as the reduced shank. Once installed, this screw is meant to self retain, which prevents any loss of fasteners.
This design combined with the security pin in the drive recess means that these screws are only removable using matching drive bits. The supply of these bits is restricted.
Security Button Head 5-Lobe Pin TX screws are also available from Fastenright.
Security 5-Lobe Pin TX Countersunk Head Captive Screws are manufactured in A2 Stainless Steel and A4-70 Stainless Steel as standard
Available from Fastenright in sizes M4 to M8 as standard, with lengths ranging from 16mm to 40mm.
Non-standard sizes, materials and finishes are available to order as specials, including small volume manufacture, modifications and custom parts made to drawings.
d1 and L1 dimensions can be to customer specification.
Metric Technical Information & Available Sizes | |||||||||||||||
Thread Diameter | M4 | M5 | M6 | M8 | |||||||||||
dk (mm) | 8.0 | 10.0 | 12.0 | 16.8 | |||||||||||
k (mm) | 2.3 | 2.8 | 3.4 | 4.4 | |||||||||||
d1 (mm) | 3.0 | 3.8 | 4.5 | 6.2 | |||||||||||
L1 (mm) | 8.0 | 10.0 | 12.0 | 16.0 | |||||||||||
Tool Size | No. 1 | No. 2 | No. 2 | No. 2.5 | |||||||||||
Available Sizes | M4 | M5 | M6 | M8 |
16mm | ||||||||||||
20mm | ||||||||||||
25mm | ||||||||||||
30mm | ||||||||||||
40mm | ||||||||||||
Size not listed? Please make an enquiry – we may be able to provide it. |