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  • Low-profile design satisfies many functional and cosmetic requirements.
  • Type PF50 with convenient large head and Phillips recess for tool or finger operation.
  • Available with six-lobe recess.
Low progile knob, spring-loaded - PF50, PF60 metric
Captive panel screw-Low profile knob, spring-loaded 2
Unit of Measure
Items Low progile knob, spring-loaded - PF50, PF60 metric
PF50-M3-0CN
Captive Panel Screw-Low Profile Knob, Spring-loaded - Metric PF50/PF60 Series
Low progile knob, spring-loaded - PF50, PF60 metric
PF50-M3-0CN
Captive Panel Screw-Low Profile Knob, Spring-loaded - Metric PF50/PF60 Series
Low progile knob, spring-loaded - PF50, PF60 metric
PF50-M3-1CN
Captive Panel Screw-Low Profile Knob, Spring-loaded - Metric PF50/PF60 Series
Low progile knob, spring-loaded - PF50, PF60 metric
PF50-M3-1CN
Captive Panel Screw-Low Profile Knob, Spring-loaded - Metric PF50/PF60 Series
Low progile knob, spring-loaded - PF50, PF60 metric
PF51-M3-0CN
Captive Panel Screw-Low Profile Knob, Spring-loaded - Metric PF50/PF60 Series
Thread Size x Pitch N/A M3 x 0.5
Type N/A Knurled Cap - PF50 N/A Knurled Cap - PF50 N/A Knurled Cap - PF50 N/A Knurled Cap - PF50 N/A Knurled Cap - PF51
Thread Code N/A M3
Screw Length Code N/A 0 N/A 0 N/A 1 N/A 1 N/A 0
A (Shank) Max. N/A 0.77 mm a1262.jpg N/A 0.77 mm a1262.jpg N/A 0.77 mm a1262.jpg N/A 0.77 mm a1262.jpg N/A 0.97 mm a1262.jpg
Min. Sheet Thickness N/A 0.80 mm N/A 0.80 mm N/A 0.80 mm N/A 0.80 mm N/A 1.0 mm
Hole Size in Sheet + 0.08 N/A 5.5 mm
C Max. N/A 5.48 mm
E ± 0.25 N/A 10.30 mm
G ± 0.64 N/A 5.84 mm N/A 5.84 mm N/A 7.37 mm N/A 7.37 mm N/A 5.84 mm
H ± 0.2 N/A 5.26 mm
P ± 0.64 N/A 0 mm N/A 0 mm N/A 1.52 mm N/A 1.52 mm N/A 0 mm
T1 Max. N/A 8.64 mm
T2 Nom. N/A 13.21 mm
Driver Size N/A #1 Phillips a1263.jpg
Min. Dist. Hole C/L to Edge N/A 6.60 mm
Thread Specification1 N/A ANSI/ASME B1.13M, 6g
Material Knob N/A Carbon Steel
Material Retainer N/A Carbon Steel
Material Screw N/A Carbon Steel
Material Spring N/A 300 Series Stainless Steel
Finish Knob N/A Bright nickel over copper flash per ASTM B689
Finish Retainer N/A Bright Nickel over Copper Flash per ASTM B689
Finish Screw N/A Bright nickel over copper flash per ASTM B689
Finish Spring N/A Natural Finish
Optional Finish N/A
For Use in Sheet Hardness N/A HRB 60 or Less (Hardness Rockwell “B” Scale)
HB 107 or Less (Hardness Brinell)
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.