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Unit of Measure

Thread Size	N/A .112-40 (#4-40)
Type	N/A PFC2
Thread Code	N/A 440
Screw Length Code	N/A 40
A (Shank) Max.	N/A .060 in Loading zoom
Min. Sheet Thickness	N/A .060 in
Hole Size in Sheet + 0.003 - 0.000	N/A .265 in
C Max.	N/A .264 in
E ± .010	N/A .312 in
G ± .016	N/A .250 in
H ± .005	N/A .072 in
P ± .025	N/A .000 in
T1 Max.	N/A .360 in
T2 Nom.	N/A .540 in
Min. Dist. Hole C/L to Edge¹	N/A .250 in
Thread Specification²	N/A ANSI B1.1, 2A
Material Retainer³	N/A 300 Series Stainless Steel
Material Screw	N/A 300 Series Stainless Steel
Material Spring	N/A 300 Series Stainless Steel
Finish Retainer	N/A Passivated and/or tested per ASTM A380
Finish Screw	N/A Passivated and/or tested per ASTM A380
Finish Spring	N/A Natural Finish
Optional Finish⁴	N/A Retainer – BN – Black Nitride Screw – BN – Black nitride
For Use in Sheet Hardness	N/A HRB 70 or Less (Hardness Rockwell “B” Scale) / HB 125 or Less (Hardness Brinell)
CAD View	N/A Unfastened
CAD Supplier	N/A PennEngineering® (PEM®)
Inventory

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 The blue plastic retaining rings are a PEM trademark. The temperature limit is 200° F / 93° C.
⁴ “BL” suffix will be added to part number to designate DuraBlack™ finish.

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