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  • Compensates for mating hole misalignment.
  • Installs into any panel hardness.
NOTE: Mating washers for PF11MW / PF12MW panel fasteners are not shown in 3D drawings.
Unit of Measure

Thread Size

N/A .250-20 (1/4-20)

Type

N/A Knurled Cap - PF11MW

Thread Code

N/A 0420
Shank Code1 N/A 1

Screw Length Code

N/A 1

A Max. Sheet Thickness

N/A .063 in a1103_1.jpg

B Min.

N/A .128 in

D Hole Size in Sheet + 0.003 - 0.001

N/A .413 in

E ± .010

N/A .575 in

G Nom.

N/A .350 in

H Min.

N/A .531 in
L1 Nom.2 N/A .157 in

L2 Max.

N/A .140 in

T1 Nom.

N/A .530 in

T2 Nom.

N/A .790 in

Driver Size

N/A Slotted/#3 Phillips a1104_1.jpg

Min. Float

N/A .081 in

W Nom.

N/A .468 in
Thread Specification3 N/A ANSI B1.1, 2A

Material Knob

N/A Aluminum

Material Retainer

N/A Aluminum

Material Screw

N/A Heat-Treated Carbon Steel

Material Spring

N/A 300 Series Stainless Steel

Material Washer

N/A 300 Series Stainless Steel

Finish Knob

N/A Natural Finish

Finish Retainer

N/A Natural finish

Finish Screw

N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

Finish Spring

N/A Natural Finish

CAD View

N/A Fastened

CAD Supplier

N/A PennEngineering® (PEM®)

CAD Note

N/A Mating washers for PF11MW / PF12MW panel fasteners are not shown in 3D drawings.
  • 1 Other shank and screw lengths available.
  • 2 The “L” dimension is the height of the installed stud at max grip. The height of the stud will increase if it is installed into thinner material. To calculate “actual L” use this formula: max grip - actual grip + L = “actual L”
  • 3 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