PennEngineering - PFQT™ PEM® Side Actuated Quarter-turn Lockable Plunger

Delivers reliable panel attachment through an intuitive quarter-turn motion with positive locking engagement.

Side lever actuation provides convenient connections when vertical space is limited

The PFQTL™ panel fastener addresses the limitations of traditional slide plungers by preventing accidental unlocking during vibration or mis-operation, providing superior reliability in demanding applications. The quarter-turn mechanism provides superior holding strength of the pin in the extended position compared to spring loaded designs while maintaining the convenience of toolfree operation, combining security with ease of use.

The positive engagement system of the PFQTL™ fastener gives operators confidence in secure attachment and reduces the risk of panel displacement during equipment operation – ensuring consistent performance throughout the service cycle.

Fool-Proof Design
Integrated mechanism positively locks plunger pin in the engaged position, for reliable fastening
Quarter-Turn Operation
Intuitive 90-degree rotation provides positive engagement with clear visual and tactile feedback
Enhanced Vibration Resistance
Spring compliance and secure locking mechanism maintain connection integrity under dynamic conditions
Versatile Configuration Options
Available in left and right-hand turn directions to accommodate diverse design requirements
Durable Construction
Retainer and plunger are hardened carbon steel with protective zinc plating ensure long service life

PFQT™ PEM® Side Actuated Quarter-turn Lockable Plunger_2

Unit of Measure

Items	PFQTL-4.6-4-L PFQT™ PEM® Side Actuated Quarter-turn Lockable Plunger	PFQTR-4.6-4-L PFQT™ PEM® Side Actuated Quarter-turn Lockable Plunger
Turn Direction	N/A Left	N/A Right
Plunger Dia. Code	N/A 4.6
Plunger Length Code	N/A 4
A (Shank) Max.	N/A .032 in0.8 mm
Min. Sheet Thickness	N/A .032 in0.8 mm
Hole Size in Sheet +.003" - .000"/+0.08mm	N/A .252 in6.4 mm
C Max.	N/A .251 in6.38 mm
D ± .004"/± .01mm	N/A .181 in4.6 mm
E1 ± .020"/± 0.5mm	N/A .661 in16.8 mm
E2 ± .020"/± 0.5mm	N/A .910 in23 mm
E3 ± .020"/± 0.5mm	N/A .520 in13.2 mm
E4 ±.020"/± 0.5mm	N/A .941 in23.9 mm
F ± .020"/± 0.5mm	N/A .630 in16 mm
G ± .025"/± .64mm	N/A .158 in4 mm
R ± .020"/± 0.5mm	N/A 0.673 in17.10 mm
T Nom.	N/A .512 in13 mm
Punch Dimensions - H1 ±.020"/± 0.5mm	N/A 0.394 in10.00 mm
Punch Dimensions - K1 ±.020"/± 0.5mm	N/A 0.945 in24.00 mm
Punch Dimensions - K2 ±.020"/± 0.5mm	N/A 0.295 in7.50 mm
Anvil Dimensions - H2 ±.020"/± 0.5mm	N/A 0.197 in5.00 mm
Anvil Dimensions - K3 ±.020"/± 0.5mm	N/A 0.201 in5.10 mm
Test Sheet Material	N/A Cold-rolled Steel
Fastener Materials - Cap	N/A Carbon Steel
Fastener Materials - Pin	N/A Hardened Carbon Steel
Fastener Materials - Spring	N/A 300 Series Stainless Steel
Fastener Materials - Handle¹	N/A Polycarbonate (UL 94V-0, Halogen Free)
Fastener Materials - Retainer 2²	N/A Polycarbonate (UL 94V-0, Halogen Free)
Standard Finish - Retainer & Pin³	N/A Zinc plated per ASTM B633, SC1 (5ųm), Type III, Colorless
Standard Finish - Cap	N/A Zinc plated per ASTM B633, SC1 (5ųm), Type III, Colorless
Natural Finish	N/A Passivated and/or Tested per ASTM A380
Standard Finish - Handle	N/A Pantone 279C
Standard Finish - Retainer 2	N/A Pantone 279C
For Use in Sheet Hardness⁴	N/A Retainer1 - HRB 80 / HB 150
¹ Temperature Limit: 210° F (99° C). Additional cap colors available on special order. ² Temperature Limit: 210° F (99° C). Additional cap colors available on special order. ³ See PEM Technical Support section of our web site for related plating standards and specifications. ⁴ HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.