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  • Compensates for mating hole misalignment.
  • Installs into any panel hardness.
Large knob, spring-loaded –Types PF11MW and PF12MW Metric only
Large knob, spring-loaded –  Types PF11MW and PF12MW 2
Unit of Measure
Items Large knob, spring-loaded –Types PF11MW and PF12MW Metric only
PF11MW-M3-11
Large Knob, Spring-loaded - Types PF11MW and PF12MW - Metric
Large knob, spring-loaded –Types PF11MW and PF12MW Metric only
PF11MW-M3.5-11
Large Knob, Spring-loaded - Types PF11MW and PF12MW - Metric
Large knob, spring-loaded –Types PF11MW and PF12MW Metric only
PF11MW-M4-11
Large Knob, Spring-loaded - Types PF11MW and PF12MW - Metric
Large knob, spring-loaded –Types PF11MW and PF12MW Metric only
PF11MW-M5-11
Large Knob, Spring-loaded - Types PF11MW and PF12MW - Metric
Large knob, spring-loaded –Types PF11MW and PF12MW Metric only
PF11MW-M6-11
Large Knob, Spring-loaded - Types PF11MW and PF12MW - Metric
Thread Size x Pitch N/A M3 x 0.5 N/A M3.5 x 0.6 N/A M4 x 0.7 N/A M5 x 0.8 N/A M6 x 1
Type N/A Knurled Cap - PF11MW
Thread Code N/A M3 N/A M3.5 N/A M4 N/A M5 N/A M6
Shank Code1 N/A 1
Screw Length Code N/A 1
A Max. Sheet Thickness N/A 1.6 mm a1103_1.jpg
B Min. N/A 2.82 mm N/A 2.92 mm N/A 3.07 mm N/A 3.07 mm N/A 3.25 mm
D Hole Size in Sheet + 0.08 - 0.03 N/A 6.35 mm N/A 7.19 mm N/A 8.79 mm N/A 8.79 mm N/A 10.49 mm
E ± 0.25 N/A 10.59 mm N/A 11.43 mm N/A 13.06 mm N/A 13.06 mm N/A 14.61 mm
G Nom. N/A 5.84 mm N/A 7.37 mm N/A 7.37 mm N/A 7.37 mm N/A 8.89 mm
H Min. N/A 9.52 mm N/A 10.49 mm N/A 11.91 mm N/A 11.91 mm N/A 13.48 mm
L1 Nom.2 N/A 3.48 mm N/A 3.78 mm N/A 3.99 mm N/A 3.99 mm N/A 3.99 mm
L2 Max. N/A 3.23 mm N/A 3.23 mm N/A 3.56 mm N/A 3.56 mm N/A 3.56 mm
T1 Nom. N/A 7.87 mm N/A 11.43 mm N/A 11.43 mm N/A 11.43 mm N/A 13.46 mm
T2 Nom. N/A 11.43 mm N/A 16.26 mm N/A 16.26 mm N/A 16.26 mm N/A 20.07 mm
Driver Size N/A Slotted/#1 Phillips a1104_1.jpg N/A Slotted/#2 Phillips a1104_1.jpg N/A Slotted/#2 Phillips a1104_1.jpg N/A Slotted/#2 Phillips a1104_1.jpg N/A Slotted/#3 Phillips a1104_1.jpg
Min. Float N/A 1.85 mm N/A 1.93 mm N/A 1.93 mm N/A 1.93 mm N/A 2.06 mm
W Nom. N/A 7.92 mm N/A 8.74 mm N/A 10.34 mm N/A 10.34 mm N/A 11.89 mm
Thread Specification3 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
Material Washer 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 Finish4 N/A
CAD View N/A Unfastened
CAD Supplier N/A PennEngineering® (PEM®)
Inventory N/A {0} N/A {0} N/A {0} N/A {0} N/A {0}
  • 1 Other shank and screw lengths available.
  • 2 The “L” dimension is the height of the installed stud at max grip. The height of the stud will increase if it is installed into thinner material. To calculate “actual L” use this formula: max grip - actual grip + L = “actual L”
  • 3 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
  • 4 “BL” suffix will be added to part number to designate DuraBlack™ finish.