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All Categories > PEM® Brand Fasteners for Metal Sheets and Panels > Captive Panel Screws and Hardware > Low Profile Knob, Spring-loaded – Types PF30, PF31, PF32, PF50, PF60 > Low Profile Knob, Spring-loaded – Types PF30, PF31, PF32 > Captive Panel Screw-Low Profile Knob, Spring-loaded PF30, PF31, PF32 - Metric > Part # PF31-M4-30CN  

Part # PF31-M4-30CN, Captive Panel Screw-Low Profile Knob, Spring-loaded PF30, PF31, PF32 - Metric

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  • Low-profile design satisfies many functional and cosmetic requirements.
  • Convenient, large, slotted head for tool or finger operation.




 Specifications   

Thread Size x Pitch
M4 x 0.7

Type
PF31

Thread Code
M4

Screw Length Code
30

A (Shank) Max.

 View
0.97 mm

Min. Sheet Thickness
1.0 mm

Hole Size in Sheet + 0.08
6.4 mm

C Max.
6.38 mm

E ± 0.25
11.89 mm

G ± 0.4
7.62 mm

H ± 0.13
5.26 mm

T1 Max.
8.38 mm

T2 Nom.
15.24 mm

Min. Dist. Hole C/L to Edge
7.37 mm

Thread Specification1
ANSI/ASME B1.13M, 6g

Material Retainer
Carbon Steel

Material Screw
Carbon Steel

Material Spring
300 Series Stainless Steel

Finish Retainer
Bright Nickel over Copper Flash per ASTM B689

Finish Screw
Bright nickel over copper flash per ASTM B689

Finish Spring
Natural Finish

For Use in Sheet Hardness
HRB 60 or Less (Hardness Rockwell “B” Scale)
HB 107 or Less (Hardness Brinell)

CAD View
Fastened

CAD Supplier
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.



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