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 All Categories    Large Knob, Spring-loaded - Types PF11M, PF12M and PF15M - Unified
PennEngineering
All Categories > PEM® Brand Fasteners for Metal Sheets and Panels > Captive Panel Screws and Hardware > Large Knob, Spring-Loaded – Types PF11, PF11M, PF11MF, PF11MW, PF12, PF12M, PF12MF, PEM C.A.P.S®, PF12MW, PF15, PF15M > Large Knob, Spring-loaded – Types PF11M, PF12M and PF15M > Large Knob, Spring-loaded - Types PF11M, PF12M and PF15M - Unified > Part # PF11M-440-2  

Part # PF11M-440-2, Large Knob, Spring-loaded - Types PF11M and PF12M - Unified

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  • Shoulder on retainer provides positive stop during installation.
  • Available in self-clinching, flaring, or floating mounting styles.
  • Available with knurled or un-knurled metal cap, black metal cap, or a custom color plastic cap.




 Specifications   

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

Type
Knurled Cap - PF11M

Thread Code
440

Screw Length Code
2

A 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
.417 in

G ± .025
.290 in

P ± .025
.120 in

T1 Nom.
0.31 in

T2 Nom.
.450 in

Driver Size
Slotted/#1 Phillips

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

Thread Specification1
ANSI B1.1, 2A

Material Knob
Aluminum

Material Retainer
Heat-Treated Carbon Steel

Material Screw
Heat-Treated Carbon Steel

Material Spring
300 Series Stainless Steel

Finish Knob
Natural Finish

Finish Retainer
Bright Nickel over Copper Flash per ASTM B689

Finish Screw
Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

Finish Spring
Natural Finish

For Use in Sheet Hardness
HRB 80 or Less (Hardness Rockwell “B” Scale) / HB 150 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



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