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 All Categories    Captive Panel Screw, Screw Head, Spring-loaded, Self-Clinching - Unified Type PF7M
PennEngineering
All Categories > PEM® Brand Fasteners for Metal Sheets and Panels > Captive Panel Screws and Hardware > Screw Head, Spring-loaded, compact - Types PF7M and PF7MF > Screw Head, Spring-loaded, Self-Clinching PF7M > Captive Panel Screw, Screw Head, Spring-loaded, Self-Clinching - Unified Type PF7M > Part # PF7M-440-1CN  

Part # PF7M-440-1CN, Captive Panel Screw, Screw Head, Spring-loaded, Self-Clinching - Unified Type PF7M


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  • Self-clinching mounting design provides high pushout resistance.
  • Installs flush on back side of panel.
  • Does not require special hole preparation.




 Specifications   

Thread Size
.112-40 (#4-40)

Type
PF7M

Thread Code
440

Screw Length Code
1

A (Shank) Max.

 View
.036 in

Min. Sheet Thickness
.036 in

Hole Size in Sheet + 0.003 - 0.000
.219 in

C Max.
.218 in

E ± .010
.310 in

G ± .025
.270 in

H ± .010
.100 in

P ± .025
.065 in

T1 Nom.
.38 in

T2 Nom.
.55 in

Min. Dist. Hole C/L to Edge
.28 in

Thread Specification1
ASME B1.1, 2A

Material Retainer
Carbon Steel

Material Screw
Heat-Treated Carbon Steel

Material Spring
300 Series Stainless Steel

Finish Retainer
Bright nickel over copper flash

Finish Screw
Bright nickel over copper flash

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
Unfastened

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.