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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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Screw head, spring-loaded - PFC2, PFS2

Screw Head, Spring-loaded - Unified Types PFC2, PFS2
Screw head, spring-loaded - PFC2, PFS2

Screw Head, Spring-loaded - Unified Types PFC2, PFS2
Screw head, spring-loaded - PFC2, PFS2

Screw Head, Spring-loaded - Unified Types PFC2, PFS2
Screw head, spring-loaded - PFC2, PFS2

Screw Head, Spring-loaded - Unified Types PFC2, PFS2
Screw head, spring-loaded - PFC2, PFS2

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 a1108.jpg
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.