bisco industries Blog

What is a Standoff?

Standoff Fastener Description

Standoffs are fasteners used to create space between printed circuit board (PCB) assemblies and are the standard fastener for mounting PCBs to prevent electrical shorts. Standoffs are similar to spacers but differ in that they are threaded.

Standoff Fastener Styles  

Standoffs may be cylindrical, square or hexagonal in shape and come in male, female, male-male, or male-female styles. Standoffs are fabricated from various materials such as aluminum, brass, stainless steel and nylon. In addition, standoffs are often plated to meet application specific requirements.

Standoff Fastener Application Example

One application example for standoffs is the fastening of a motherboard (PCB) to a metal enclosure. In a typical scenario, male-female standoffs are fastened into pre-drilled metal ringed screw holes in the motherboard while the opposite end of the standoff is fastened to the enclosure wall. Mounting the motherboard in this manner prevents it from short circuiting.

Standoff Fastener Manufacturers

  • Accurate Screw Machine (ASM)
  • Amatom
  • Bivar
  • Concord Electronics
  • ITW Fastex
  • Keystone Electronics
  • Lyn-Tron
  • RAF Electronic Hardware

Configuring Standoff Fasteners

Since standoffs come in so many styles, sizes, and materials configuring the correct standoff for your application can be challenging. To aid you in configuring standoffs and other electronic hardware bisco has recently updated it’s RAF product catalog. Users can now browse and filter standoffs by style, material, diameter, length, thread size, and finish. Visit bisco’s online RAF product selector to learn more.

Manufacturer Profile: Lyn-Tron

Lyn-Tron Inc. was originally founded as Lynn Electronics Company back in 1956 at small facility in Los Angeles, CA. Since then Lyn-Tron has expanded to a state-of-art manufacturing facility in Spokane, WA and has become a leading manufacturer of electronic hardware. Solder terminals were Lyn-Tron’s main product in its early years but technological advances allowed Lyn-Tron to expand their product offering to meet growing industry requirements. In 1982, Lyn-Tron began manufacturing connector hardware and quickly build a reputation for providing quality and cost effective electronic hardware.

Lyn-Tron Products

  • Precision Shoulder Screws
  • Spacers
    • Swage Spacers
  • Standoffs
    • Swage Standoffs
    • Female-Female Standoffs
    • Male-Female Standoffs
    • Male-Male Standoffs
    • Super-Torq Standoffs
  • Ball Studs
  • Captive Panel Screws
  • Captive Panel Retainers
  • Thumb Screws & Nuts
  • Handles
  • Handle Ferrules
  • Chassis Fasteners

Lyn-Tron Manufacturing Capabilities

Lyn-Tron offers a large assortment of machining capabilities to meet users’ challenging and diverse needs. Among Lyn-Tron’s manufacturing techniques are electrical discharge machining (EDM), computer numerical control (CNC) machining, and multi-spindle screw machining. These techniques allow Lyn-Tron to produce custom tooling and accommodate both small and large production runs.

Authorized Lyn-Tron Distributor

bisco industries is proud to be an authorized stocking distributor of Lyn-Tron electronic hardware. bisco’s long standing partnership with Lyn-Tron means you’ll receive knowledgeable service, competitive pricing, and quick order turnaround. To find product data, pricing, and availability visit biscoind.com. If you aren’t able to find the part you need online, our dedicated and knowledgeable sales reps are ready to assist you in specifying your product.

What is a Thumb Screw?

Thumb Screw Description

Thumb screws are threaded fasteners with textured heads that allow them to be fastened and unfastened by hand. Thumb screws are typically used on low stress applications that require easy access. For example, thumb screws are often used to secure the side panel of desktop computer enclosures.  Thumb screws are manufactured in many different lengths, diameters, thread sizes, and materials. Thumb screw materials include aluminum, brass, nylon, steel, and stainless steel.

Leading Thumb Screw Manufacturers:

  • RAF Electronic Hardware
  • Accurate Screw Machine (ASM)
  • Essentra
  • Unicorp
  • Lyn-Tron
  • Keystone Electronics

Learn More About Thumb Screws

Helpful resources for configuring thumb screws include RAF’s thumb screw catalog and Lyn-Tron’s online thumb screw configurator.  For personal assistance finding thumb screws contact bisco industries’ product support team.

What is a Spacer?

Spacers are unthreaded cylindrical fasteners fabricated from a variety of materials including brass, stainless steel, and nylon. Similar to standoffs, spacers differ in that they are unthreaded. Spacers fall under the broader categories of electronic hardware and printed circuit board (PCB) hardware as spacers are primarily used to separate (space) PCBs.  Spacers protect PCBs from heat damage by creating space for cooling air flow while also allowing PCBs to be stacked.

How Are Spacers Manufactured?

Spacers are typically fabricated using computer numerical control (CNC) machining or automatic lathe machining. CNC machining utilizes computer programs to control the machining process while automatic lathe machining automates the machining process through mechanical means. In either method the raw material is inserted into the machine and then rotated at varying speeds while cutting tools remove excess material until the final product is produced.

Leading Spacer Manufacturers

Only Have a Product Description?

RAF and Lyn-Tron both offer convenient product configurators to help you find a manufacturer item number. Once you’ve located the item number or if you already have it, be sure to visit biscoind.com to get pricing and availability information.

bisco and Fast-Cor attend the 2015 National Industrial Fastener & Mill Supply Expo in Las Vegas

Last week, 10 team members from bisco industries and their sister-company Fast-Cor participated in the 35th National Industrial Fastener & Mill Supply Expo in Las Vegas, NV.  The show aims to connect manufacturers and master distributors of industrial fasteners, precision formed parts, fastener machinery & tooling and other related products. The show officially opened on Thursday, October 22nd and ran two full days of demos and networking.  This year’s show was held at the Sands Expo Center and proved to be a successful trip for all members the bisco and Fast-Cor team.

Supply Partner Meetings

Our meetings with our supply partners gave our team a great chance to touch base on the year’s progress and any upcoming product launches and events.  One exciting update from manufacturer, RAF Electronic Hardware was the announcement of a new line of standoffs certified to NAS specifications. Many of bisco’s supply partners also exhibited at the show including 3M, HOLO-KROME, Micro Plastics, Lyn-Tron, A. Raymond Tinnerman, and Unbrako.

Leveraging Manufacturer Relationships for Our Customers

bisco leverages our strong relationships with these and many other manufacturers to provide our clients with the best pricing, availability, and access to custom manufacturing services.  Are you looking for specialized fasteners and hardware? Visit biscoind.com to get pricing and availability on specialty fasteners and hardware at the click of a button.

Reduce Costs by Using Captive Screws

Captive Screw Diagram

What is a Captive Screw?

Captive screws are designed to lock into a hole while allowing the fastened components to be detached without the complete removal of the screw. Thus a captive screw can be locked in place on a parent component without being fastened to a child component. Captive fasteners are typically locked in place using thread locking, press-fitting, or broaching.

Cost Savings from Captive Screws

Advantages of Using Captive Fasteners

Captive screws help control costs by minimizing damage to machinery from loose screws and by reducing the need for replacement fasteners. Captive screws also help make repairs easier by allowing easy access to components.

captive-screws

Captive Screw Configurations

Captive fasteners are available in a variety of configurations and designs.

Style Locking Style Drive Style Materials
Flush Captive Screws Flare-In Philips Steel
Spring-Loaded Captive Screws Broaching / Spline Slotted Stainless Steel
Low Profile Captive Screws Thread Locking Socket Brass
Knob Captive Screws Soldering Torx Aluminum
And More… And More… And More… And More…

Captive Screw Manufacturers

bisco industries offers captive screws from industry leading manufacturers including:

To find the right captive fastener for your application search biscoind.com or contact our customer service team today!

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