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52 series

52 series

Product catalog summary

Overview: This document outlines the specifications and installation guidelines for Southco's 52-SM Captive Screws, part of the Miniature Series for Surface Mount Technology (SMT) applications. These screws are designed for limited space applications and come in various styles, including Phillips/Slot and TORX®/Slot combinations.

Specifications:

Material and Finish: Made from hardened carbon steel, zinc plated with chromate and sealer. The internal spring is 300 series stainless steel, passivated, and the standoff is steel, tin plated.
Thread Sizes: Available in 4-40, 6-32, and M3 x 0.5.
Recess Styles: Options include No. 2 Phillips, T15 TORX®, and T25 TORX®.

Installation Guidelines:

Supports SMT installation for 4-40, 6-32, and M3 thread sizes.
Includes a polyimide patch for vacuum pick-up and a plug to protect threads during reflow.
Installation involves preparing the PC Board with appropriate soldering pad surface area and following reflow process steps: pre-heat, soak, reflow, and cooling.

Packaging Options:

Available in Tray Pack and Reel Pack formats.

Additional Features:

Overmold Captive Screws offer color customization with options for black, blue, red, and green.
Flammability Rating: UL94-VO.

Performance and Usage:

Suitable for use in most aluminum or low carbon steels that are 1/4 hard or softer.
Recommended minimum distance from the edge of the panel to the centerline of the hole is 1.5 times the diameter for press-in versions.

Installation Guidelines for SOUTHCO® Self-Clinching Products:

Overview: Provides guidelines for installing SOUTHCO® self-clinching products, designed as easy-to-use captive panel fasteners.

Key Specifications:

Material Hardness: Panel material's hardness must not exceed SOUTHCO® recommendations.
Installation Holes: Holes can be drilled, punched, or cast with a sharp top edge and must meet SOUTHCO® specifications.
Hole Distance from Edge: Minimum recommended distance is 1.5 times the diameter of the mounting hole.
Panel Thickness: Must meet or exceed Southco’s minimum recommendations to prevent deformation or damage.

Installation Procedures:

Force Application: Use a parallel-acting press and a punch larger than the fastener head. Avoid using a hammer.
Installation Timing: Install after plating or finishing the panel. Ensure hole diameter meets specifications before finishing.
Over-Installation: Avoid over-installing parts to prevent interruption of material flow and reduced retention strength.

Recommendations: Follow guidelines for material hardness, hole preparation, and installation force for successful installation of self-clinching fasteners.

Catalog excerpts

52-SM Captive ScrewsMiniature series • Surface Mount Technology (SMT) Style • For installation to PC Board material utilizing surface mount technology • Smaller footprint for limited space applications • Heat treated steel screw for optimum strength Recess Styles Screw: Hardened carbon steel, zinc plated, chromate, plus sealer Internal spring: 300 series stainless steel, passivated Standoff: Steel, Tin plated Plug: Silicone rubber Installation Notes Visit www.southco.com for additional installation guidelines To ensure you receive SOUTHCO® quality parts, look for the segmented circle. Part Number See table Screw Height and Screw Projection Unfastened Fastened * Value represents float in unfastened position Notes: P-1, P-2 Screw Projection measured from the top side of panel Screw as Shipped in Reel Pack or Tray Pack 52 Captive Screws Minature Series - SMT Style Polyimide tape patch on top surface of screw for vacuum pick up liMBi Part Number Specify Package Indicate package option with last digit of the part number Example 52-SM-1311-K-R: Reel Package (as shown in table) 52-SM-1311-K-T: Tray Package Packed with Plug ■ Part Number (Reel package shown) 0 B 0 B Panel Knurled Head Smooth Head H-1 H-2 P-1 P-2 Knurled Smooth 0 J 0 E C G F* 0 K 0 N Preparation Phillips / Slotted TORX®/Slotted Phillips / Slotted TORX®/Slotted Head Head 0 D Other options available. For complete details on variety, part numbers, installation and specification, go to www.southco.com/52 TORX is a registered trademark of ACUMENT® Intellectual Properties, LLC Dimensions in millimeters (inch) unless otherwise stated

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Installation Guidelines Screw Knob Southco Surface Mounted Technology (SMT) Captive Screws include installation and packaging features for installation onto PC Boards during the Reflow Process as a surface mounted device (SMD). SMT product installation is offered on these Southco Captive Screws for 4-40, 6-32 and M3 thread sizes: • 47 Styled Knob Series • 4C Prism Series • 52 Miniature Series Installation Features Each Southco SMT style captive screw includes a polymide patch covering the screw head tool recess allowing for vacuum pick up during placement on the PC Board. The screw threads are...

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52 Captive ScrewsMiniature series • Flare-in style • Smaller footprint for limited space applications • Heat treated steel screw for optimum strength Material and Finish Screw: Hardened carbon steel, zinc plated, chromate, plus sealer Spring: 300 series stainless steel, passivated Standoff: Aluminum natural Knob Height and Screw Projection Installation tool: Hardened carbon steel, zinc plated, chromate, plus sealer Installation Notes 1. Prepare panel as shown 2. Use light pressure to flare standoff, assuring parallel surfaces on the punch and installation tool Panel thickness (Total float of...

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Recess Styles Phillips / Slot combination TORf / Slot combination Knob Height and Screw Projection Unfastened Fastened * Value represents float in unfastened position Notes: P-1, P-2 measured from the top side of panel 52 Captive ScrewsMiniature series • Press-in style • Smaller footprint for limited space applications • Heat treated steel screw for optimum strength Material and Finish Screw: Hardened carbon steel, zinc plated, chromate, plus sealer Spring: 300 series stainless steel, passivated Standoff: Carbon steel, zinc plated, chromate, plus sealer Installation Notes For use in most aluminum...

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52 Overmold Captive ScrewsMiniature series • Flare-in style • Smaller footprint for limited space applications • Heat treated steel screw for optimum strength • Designate access points with color • Color match captive screws to your industrial design Material and Finish Screw: Hardened carbon steel, zinc plated, chromate, plus sealer Spring: 300 series stainless steel, passivated Standoff: Aluminum natural Knob: PC/ABS Installation tool: Hardened carbon steel, zinc plated, chromate, plus sealer Performance Details Flamability Rating: UL94-VO Installation Notes 1. Prepare panel as shown 2. Use...

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Recess Styles* Phillips / Slot Recess No. 2 Phillips Knob Height and Screw Projection Unfastened Fastened 52 Overmold Captive ScrewsMiniature series • Press-in style • Smaller footprint for limited space applications • Heat treated steel screw for optimum strength • Designate access points with color • Color match captive screws to your industrial design Material and Finish Screw: Hardened carbon steel, zinc plated, chromate, plus sealer Spring: 300 series stainless steel, passivated Standoff: Carbon steel, zinc plated, chromate, plus sealer Knob: PC/ABS Performance Details Flamability Rating:...

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Installation Guidelinesfor SOUTHCO Self-Clinching products Self-clinching product installation is offered on side these Punch Ferrule ® of panel Rollover SOUTHCO products, making them easy-to-use captive Area of material that Material panel fasteners: moves into groove thickness Panel • Captive Screws Die side Mounting hole of panel • Receptacles for Quarter-turn Fasteners Mounting hole • Receptacles for Fast-lead Thread Screws diameter Panel edge • Spring-loaded Plungers • Captive Nuts Ferrule • Threaded Area of material Inserts When pressed into a properly prepared hole, self-clinching captive...

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52 series

52 series

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