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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.

Unit of Measure

Thread Size	N/A .112-40 (#4-40)
Type	N/A Knurled Cap - PF11M
Thread Code	N/A 440
Screw Length Code	N/A 1
A Max.	N/A .036 in
Min. Sheet Thickness	N/A .036 in
Hole Size in Sheet + 0.003 - 0.000	N/A .219 in
C Max.	N/A .218 in
E ± .010	N/A .417 in
G ± .025	N/A .230 in
P ± .025	N/A .060 in
T1 Nom.	N/A .310 in
T2 Nom.	N/A .450 in
Driver Size	N/A Slotted/#1 Phillips
Min. Dist. Hole C/L to Edge¹	N/A .28 in
Thread Specification²	N/A ANSI B1.1, 2A
Material Knob	N/A Aluminum
Material Retainer	N/A Heat-Treated Carbon Steel
Material Screw	N/A Heat-Treated Carbon Steel
Material Spring	N/A 300 Series Stainless Steel
Finish Knob	N/A Natural Finish
Finish Retainer	N/A Bright Nickel over Copper Flash per ASTM B689
Finish Screw	N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless
Finish Spring	N/A Natural Finish
Optional Finish³	N/A Knob (aluminum) – Black Anodize Screw (steel and stainless) – Black Nitride
For Use in Sheet Hardness	N/A HRB 80 or Less (Hardness Rockwell “B” Scale) / HB 150 or Less (Hardness Brinell)
CAD View	N/A Unfastened
CAD Supplier	N/A PennEngineering® (PEM®)
Inventory	N/A {0}

¹ To minimize sheet distortion and maximize product performance, use a centerline-to-edge value greater or equal to the value specified.
² 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
³ “BL” suffix will be added to part number to designate DuraBlack™ finish.

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