PennEngineering® Large Knob, Spring-loaded - Types PF11MF and PF12MF - Unified PF12MF-440-0-BL

Description
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.
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Description
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.
Request a Quote
Datasheet
Datasheet Summary
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PF12MF-440-0-BL is a spring-loaded, flare-mounted captive panel screw with a knurled knob, designed for secure fastening with easy service access. It features a zinc-plated hardened carbon steel screw with a black nitride finish per AMS2753, Section 3, and a natural finish aluminum knob and retainer. The screw has a #4-40 thread (440 code), installs into a minimum sheet thickness of 0.170 inch, and provides a minimum float of 0.010 inch in all directions. The Phillips driver size is #1. The assembly is rated for installation in painted or stainless steel panels and is suitable for thin circuit boards or thinner sheets.

Datasheet Summary
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PF12MF-440-0-BL is a spring-loaded, flare-mounted captive panel screw with a knurled knob, designed for secure fastening with easy service access. It features a zinc-plated hardened carbon steel screw with a black nitride finish per AMS2753, Section 3, and a natural finish aluminum knob and retainer. The screw has a #4-40 thread (440 code), installs into a minimum sheet thickness of 0.170 inch, and provides a minimum float of 0.010 inch in all directions. The Phillips driver size is #1. The assembly is rated for installation in painted or stainless steel panels and is suitable for thin circuit boards or thinner sheets.

Suppliers

Company
Product
Description
Supplier Links
Large Knob, Spring-loaded - Types PF11MF and PF12MF - Unified - PF12MF-440-0-BL - PennEngineering®
Danboro, PA, United States
Large Knob, Spring-loaded - Types PF11MF and PF12MF - Unified
PF12MF-440-0-BL
Large Knob, Spring-loaded - Types PF11MF and PF12MF - Unified PF12MF-440-0-BL
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.
  • 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.
Supplier's Site Datasheet

Technical Specifications

  PennEngineering®
Product Category Captive Fasteners
Product Number PF12MF-440-0-BL
Product Name Large Knob, Spring-loaded - Types PF11MF and PF12MF - Unified
Captive Fastener Class / Type Captive Screws
Decimal Thread Diameter 0.1120 inch (2.84 mm)
Unified Thread Notation Unified
Panel Thickness 0.0310 inch (0.7874 mm)
Hole Size 0.1870 inch (4.75 mm)
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