PennEngineering - Screw Head, Spring-loaded - Unified Types PFC2, PFS2

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Available in steel or stainless steel.
Meets “operator access area” requirements similar to UL 508.
Tool or finger operation.
Most sizes available in three screw lengths.

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Unit of Measure

Items	PFC2-440-40 Screw Head, Spring-loaded - Unified Types PFC2, PFS2	PFC2-440-40 Screw Head, Spring-loaded - Unified Types PFC2, PFS2	PFC2-440-62 Screw Head, Spring-loaded - Unified Types PFC2, PFS2	PFC2-440-62 Screw Head, Spring-loaded - Unified Types PFC2, PFS2	PFC2-632-40 Screw Head, Spring-loaded - Unified Types PFC2, PFS2
Thread Size	N/A .112-40 (#4-40)	N/A .112-40 (#4-40)	N/A .112-40 (#4-40)	N/A .112-40 (#4-40)	N/A .138-32 (#6-32)
Type	N/A PFC2
Thread Code	N/A 440	N/A 440	N/A 440	N/A 440	N/A 632
Screw Length Code	N/A 40	N/A 40	N/A 62	N/A 62	N/A 40
A (Shank) Max.	N/A .060 in
Min. Sheet Thickness	N/A .060 in
Hole Size in Sheet + 0.003 - 0.000	N/A .265 in	N/A .265 in	N/A .265 in	N/A .265 in	N/A .281 in
C Max.	N/A .264 in	N/A .264 in	N/A .264 in	N/A .264 in	N/A .280 in
E ± .010	N/A .312 in	N/A .312 in	N/A .312 in	N/A .312 in	N/A .344 in
G ± .016	N/A .250 in	N/A .250 in	N/A .375 in	N/A .375 in	N/A .250 in
H ± .005	N/A .072 in
P ± .025	N/A .000 in	N/A .000 in	N/A .125 in	N/A .125 in	N/A .000 in
T1 Max.	N/A .360 in
T2 Nom.	N/A .540 in
Min. Dist. Hole C/L to Edge	N/A .250 in	N/A .250 in	N/A .250 in	N/A .250 in	N/A .28 in
Thread Specification¹	N/A ANSI B1.1, 2A
Material Retainer²	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 Finish	N/A
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	N/A Fastened	N/A Unfastened	N/A Fastened	N/A Unfastened
CAD Supplier	N/A 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 The blue plastic retaining rings are a PEM trademark. The temperature limit is 200° F / 93° C.

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