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2-Hole Pan Security Pig Nose Machine Screw

2 Hole Pan Head Security Screws

Reusable tamper resistant pan head machine screws for an aesthetic finish

  • Also known as pig nose security screws
  • An economical and aesthetic security solution
  • Low / medium security resistance
  • Reusable 2-way drive
  • Usable for lower torque applications

Tamper resistant 2-hole pan head screws are available off the shelf in A2 stainless steel with other sizes and materials available to order.

Note: Special 2 Hole Security Screws can also be made to order including small volume manufacture, modifications and custom parts to drawings.

Thread / Length (mm) 6 8 10 12 16 20 25 30 35 40 45 50

Tamper Resistant 2 Hole Pan Head Security Machine Screws – Features

Designed with 2 holes drilled into the head, these screws require a special insert bit to insert and remove. 

Due to the security drive design of the vandal resistant tamper 2 Hole security screw it is suitable for low to medium torque applications and is a2 way reusable fixings making it the ideal security fastener for applications where maintenance is required.
The two pin drive is designed mainly to offer some security but mainly to maintain the aesthetics of the application it is been used with.

These two holes can be drilled at different distances (between centres), therefore it is advisable to always purchase the screws and corresponding bits from the same supplier. These screws are more prone to cam-out than some other security screws such as Pin Hex security screws.  We also recommed the purchase of additional drive bits, as drive bits are prone to bending or breaking after prolonged use.

2 hole security screws are also referred to by other names including Snake Eye, Pig Nose, Two Pin and Spanner Drive Screws, and offer a medium security resistance at a relatively low cost. Often used on trains, in public lifts and other areas where where aesthetics are important. 

Tamper Resistant 2 Hole machine screws can be used with security Wave Nuts, Shear Nuts, Kinmar Reusable Nuts, Kinmar Permanent Nuts, 4-Hole Nuts or Pin Torx Barrel Nuts for added security.

2 Hole pan machine screw technical drawing

M3 M3.5 M4 M5 M6
DK (mm) 6 6.6 8 10 12
K (mm) 1.8 1.9 2.4 3.0 3.6
TOOL SIZE No.4 No.6 No.8 No.10 No.14

*For guidance purposes only

2 Hole Pan Security Screw