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2-Hole Pan Self Tapping Security Pig Nose Screw

2 hole pan head self-tapping security screws.

Typically used in the electrical trade, tamper resistant self-tapping screws ideal for use in prisons, hospitals, mental health facilities, schools, trains, lifts and other public areas.

  • Pig nose self-tapping security screws – 2 holes drilled into screw head
  • Anti-tamper screws with aesthetic appearance
  • Economical low / medium security resistance solution
  • Install and remove with special insert bit

This security screw is suitable for low to medium torque applications and is a reusable fixing, ideal for applications where maintenance is required.

2-hole screws installation guidance:

The two holes can be drilled at different distances between centres, so we advise purchasing the screws and corresponding bits / drivers from the same supplier.

2-hole screws are more prone to cam-out than other security screws such as Pin Hex security screws. Users should also be aware that when tightening the screw the drive bits are prone to bending or breaking after prolonged use, so we recommend purchasing additional drive bits as backup.

Supplied from stock in A2 stainless steel, other sizes and materials to order

Special 2-hole security screws can be made to order including small volume manufacture, modifications and custom parts to drawings.

Gauge / Length (mm) 1/4″ (6.3) 3/8″ (9.5) 1/2″ (13) 5/8″ (16) 3/4″ (19) 1″ (25) 1 1/4″ (32) 1 1/2″ (38) 1 3/4″ (45) 2″ (50) 2 1/2″ (63)
No.4 (2.9mm)
No.6 (3.5mm)
No.8 (4.2mm)
No.10 (4.8mm)
No.12 (5.5mm)
No.14 6.3mm)

2 Hole pan self tapper screw technical drawing

No.4 No.6 No.8 No.10 No.12 No.14
DK (mm) 5.4 6.7 8.0 9.2 10.5 12.2
K (mm) 1.6 2.0 2.3 2.7 3.1 3.5
TOOL SIZE No.4 No.6 No.8 No.10 No.12 No.14

*For guidance purposes only

2 Hole Pan Self Tapping Security Screw