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5 Lobe Pin TX Countersunk Security Screws

  • 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

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. The supply of these bits is restricted.

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.

Non-standard sizes and materials are available to order as specials, including custom parts made to drawings.
5 Lobe Pin TX Countersunk Security Screws Technical Drawing

Metric Technical Information & Available Sizes
Thread Diameter M3 M4 M5 M6 M8
dk (mm) 8.0 10.0 12.0 16.8
k (mm) 2.3 2.8 3.4 4.4
Tool Size No. 1 No. 2 No. 2 No. 2.5
Available Sizes M3 M4 M5 M6 M8
6mm black icon image Stainless steel finish Stainless steel finish Stainless steel finish Stainless steel finish
8mm Stainless steel finishblack icon image Stainless steel finishblack icon image Stainless steel finish Stainless steel finish
10mm black icon image Stainless steel finishblack icon image Stainless steel finishblack icon image Stainless steel finish Stainless steel finish
12mm black icon image Stainless steel finishblack icon image Stainless steel finishblack icon image Stainless steel finishblack icon image Stainless steel finish
16mm Stainless steel finishblack icon image Stainless steel finishblack icon image Stainless steel finishblack icon image Stainless steel finish
20mm Stainless steel finishblack icon image Stainless steel finishblack icon image Stainless steel finishblack icon image Stainless steel finishblack icon image
25mm black icon image Stainless steel finishblack icon image Stainless steel finishblack icon image Stainless steel finishblack icon image
30mm Stainless steel finishblack icon image Stainless steel finishblack icon image Stainless steel finishblack icon image
40mm Stainless steel finishblack icon image black icon image Stainless steel finishblack icon image
Stainless steel finish= A2 Stainless Steel // black icon image = A4-70 Stainless Steel
Size not listed? Please make an enquiry – we may be able to provide it.
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