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Security 5 Lobe Pin TX Countersunk Head Captive Screws

Security 5 Lobe Pin TX Countersunk Head Captive Screws are more secure variant of the more common 6 Lobe TX Security Captive Screws – featuring a 5 lobe drive that is similar in shape to a flower petal.

Captive screws feature 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 sale of these bits is restricted for security purposes.

  • 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 are manufactured from A2 Stainless Steel and A4-70 Stainless Steel as standard, with other materials available to order.

Available in thread sizes M4 to M8 as standard, with lengths ranging from 16mm to 40mm. Security Button Head 5 Lobe Pin TX Captive Screws are also available at Fastenright.

Non-standard sizes, materials and finishes are available to order as specials, including small volume manufacture, modifications and custom parts made to drawings.

Security 5 Lobe Pin TX Countersunk Head Captive Screws Technical Drawing

d1 and L1 dimensions can be to customer specification.

 

Technical Data & 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 (L) M4 M5 M6 M8
16mm Stainless steel finishblack icon image
20mm Stainless steel finishblack icon image Stainless steel finishblack icon image
25mm black icon image Stainless steel finishblack icon image Stainless steel finishblack icon image
30mm Stainless steel finishblack icon image Stainless steel finishblack icon image
40mm Stainless steel finishblack icon image black icon image black 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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