Print Back
  • Compensates for mating hole misalignment.
  • Installs into any panel hardness.
NOTE: Mating washers for PF11MW / PF12MW panel fasteners are not shown in 3D drawings.
Large knob, spring-loaded –Types PF11MW and PF12MW
Large knob, spring-loaded –  Types PF11MW and PF12MW 2
Unit of Measure
Items Large knob, spring-loaded –Types PF11MW and PF12MW
PF11MW-440-11
Large Knob, Spring-loaded - Types PF11MW and PF12MW - Unified
Large knob, spring-loaded –Types PF11MW and PF12MW
PF11MW-440-11
Large Knob, Spring-loaded - Types PF11MW and PF12MW - Unified
Large knob, spring-loaded –Types PF11MW and PF12MW
PF11MW-632-11
Large Knob, Spring-loaded - Types PF11MW and PF12MW - Unified
Large knob, spring-loaded –Types PF11MW and PF12MW
PF11MW-632-11
Large Knob, Spring-loaded - Types PF11MW and PF12MW - Unified
Large knob, spring-loaded –Types PF11MW and PF12MW
PF11MW-832-11
Large Knob, Spring-loaded - Types PF11MW and PF12MW - Unified
Thread Size N/A .112-40 (#4-40) N/A .112-40 (#4-40) N/A .138-32 (#6-32) N/A .138-32 (#6-32) N/A .164-32 (#8-32)
Type N/A Knurled Cap - PF11MW
Thread Code N/A 440 N/A 440 N/A 632 N/A 632 N/A 832
Shank Code1 N/A 1
Screw Length Code N/A 1
A Max. Sheet Thickness N/A .063 in a1103.jpg
B Min. N/A .111 in N/A .111 in N/A .115 in N/A .115 in N/A .121 in
D Hole Size in Sheet + 0.003 - 0.001 N/A .250 in N/A .250 in N/A .283 in N/A .283 in N/A .346 in
E ± .010 N/A .417 in N/A .417 in N/A .450 in N/A .450 in N/A .514 in
G Nom. N/A .230 in N/A .230 in N/A .290 in N/A .290 in N/A .290 in
H Min. N/A .375 in N/A .375 in N/A .413 in N/A .413 in N/A .469 in
L1 Nom. N/A .137 in N/A .137 in N/A .149 in N/A .149 in N/A 0.157 in
L2 Max. N/A .127 in N/A .127 in N/A .127 in N/A .127 in N/A .140 in
T1 Nom. N/A 0.31 in N/A 0.31 in N/A .450 in N/A .450 in N/A .450 in
T2 Nom. N/A .450 in N/A .450 in N/A .640 in N/A .640 in N/A .640 in
Driver Size N/A Slotted/#1 Phillips a1104.jpg N/A Slotted/#1 Phillips a1104.jpg N/A Slotted/#2 Phillips a1104.jpg N/A Slotted/#2 Phillips a1104.jpg N/A Slotted/#2 Phillips a1104.jpg
Min. Float N/A .073 in N/A .073 in N/A .076 in N/A .076 in N/A .076 in
W Nom. N/A .312 in N/A .312 in N/A .344 in N/A .344 in N/A .407 in
Thread Specification2 N/A ANSI B1.1, 2A
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 Finish3 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 Other shank and screw lengths available.
  • 2 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
  • 3 “BL” suffix will be added to part number to designate DuraBlack™ finish.