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Captive Panel Screws and Hardware
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Large Knob, Spring-Loaded – Types PF11, PF11M, PF11MF, PF11MW, PF12, PF12M, PF12MF, PEM C.A.P.S®, PF12MW, PF15, PF15M
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Large Knob, Spring-loaded – Types PF11M, PF12M and PF15M
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Large Knob, Spring-loaded - Types PF11M, PF12M and PF15M - Unified
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Part # PF15M-0420-2 BL
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Part # PF15M-0420-2 BL, Large Knob, Spring-loaded - Types PF11M and PF12M - Unified
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.
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Specifications
Thread Size
.250-20 (1/4-20)
Type
Semi-Smooth Cap - PF15
Thread Code
0420
Screw Length Code
2
A Max.
.036
in
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Min. Sheet Thickness
.036
in
Hole Size in Sheet + 0.003 - 0.000
.375
in
C Max.
.374
in
E ± .010
.575
in
G ± .025
.410
in
P ± .025
.120
in
T1 Nom.
.530
in
T2 Nom.
.790
in
Driver Size
Slotted/#3 Phillips
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Min. Dist. Hole C/L to Edge
.460
in
Thread Specification
1
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
Optional Finish
2
Knob (aluminum) – Black Anodize
Screw (steel and stainless) – Black Nitride
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
2
“BL” suffix will be added to part number to designate DuraBlack™ finish.
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