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  • Appropriate for close centerline-to-edge applications.
  • Doesn’t require high installation force.
  • Installs into any panel hardness.
  • Installs flush on back side of panel.
Unit of Measure

Thread Size

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

Type

N/A Smooth Cap - PF12MF

Thread Code

N/A 0420

Screw Length Code

N/A 2

A Max.

N/A .072 in a1101.jpg

Min. Sheet Thickness

N/A .060 in

Hole Size in Sheet + 0.005 - 0.000

N/A .323 in

C Max.

N/A .322 in

E ± .010

N/A .575 in

G ± .025

N/A .410 in

P ± .025

N/A .084 in

T1 Nom.

N/A .530 in

T2 Nom.

N/A .790 in

Driver Size

N/A Slotted/#3 Phillips a1102.jpg
Thread Specification1 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

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
Optional Finish2 N/A Knob (aluminum) – Black Anodize
Screw (steel and stainless) – Black Nitride

CAD View

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 “BL” suffix will be added to part number to designate DuraBlack™ finish.

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