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  • Appropriate for close centerline-to-edge applications.
  • Doesn’t require high installation force.
  • Installs into any panel hardness.
  • Installs flush on back side of panel.
Large knob, spring-loaded –Types PF11MF and PF12MF Metric only
Large knob, spring-loaded –  Types PF11MF and PF12MF 2
Unit of Measure
Items Large knob, spring-loaded –Types PF11MF and PF12MF Metric only
PF11MF-M3-0
Large Knob, Spring-loaded - Types PF11MF and PF12MF - Metric
Large knob, spring-loaded –Types PF11MF and PF12MF Metric only
PF11MF-M3-0
Large Knob, Spring-loaded - Types PF11MF and PF12MF - Metric
Large knob, spring-loaded –Types PF11MF and PF12MF Metric only
PF11MF-M3-1
Large Knob, Spring-loaded - Types PF11MF and PF12MF - Metric
Large knob, spring-loaded –Types PF11MF and PF12MF Metric only
PF11MF-M3-1
Large Knob, Spring-loaded - Types PF11MF and PF12MF - Metric
Large knob, spring-loaded –Types PF11MF and PF12MF Metric only
PF11MF-M3-2
Large Knob, Spring-loaded - Types PF11MF and PF12MF - Metric
Thread Size x Pitch N/A M3 x 0.5
Type N/A Knurled Cap - PF11MF
Thread Code N/A M3
Screw Length Code N/A 0 N/A 0 N/A 1 N/A 1 N/A 2
A Max. N/A 1.05 mm a1101.jpg
Min. Sheet Thickness N/A 0.79 mm
Hole Size in Sheet + 0.1 N/A 4.75 mm
C Max. N/A 4.73 mm
E ± 0.25 N/A 10.59 mm
G ± 0.64 N/A 4.32 mm N/A 4.32 mm N/A 5.84 mm N/A 5.84 mm N/A 7.37 mm
P ± 0.64 N/A 0 mm N/A 0 mm N/A 1.40 mm N/A 1.40 mm N/A 2.92 mm
T1 Nom. N/A 7.87 mm
T2 Nom. N/A 11.43 mm
Driver Size N/A Slotted/#1 Phillips a1102.jpg
Thread Specification1 N/A ANSI/ASME B1.13M, 6g
Material Knob N/A Aluminum
Material Retainer N/A Aluminum
Material Screw N/A Heat-Treated Carbon Steel
Material Spring N/A 300 Series Stainless Steel
Finish Knob N/A Natural Finish
Finish Retainer N/A Natural finish
Finish Screw N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless
Finish Spring N/A Natural Finish
Optional Finish2 N/A
CAD View N/A Unfastened N/A Fastened N/A Unfastened N/A Fastened N/A Unfastened
CAD Supplier N/A PennEngineering® (PEM®)
  • 1 As with all external plated threads, Class 2A/6g, the maximum major and pitch, after plating, may equal basic sizes and be gauged to Class 3A/4h, per ANSI B1.1, Section 8, Table 3A and ANSI B1.13M, Section 8, Paragraph 8.2
  • 2 “BL” suffix will be added to part number to designate DuraBlack™ finish.