Pentair Introduces New High Thermal Performance Retainer Series and Newly Expanded High Clamp Force Family of Card Loks
Pentair has released a new Schroff retainer design-the Calmark High Thermal “HT” Card Lok and the newly expanded family of Calmark Series 263HC, 265HC, and 276HC High Clamp Force Card Lok Retainers.
The 280HT Card Lok provides best-in-class thermal performance by up to 15 percent over similarly sized Card Loks. The 280HT can do this by shortening the thermal path distance from the PCB to the cold wall through a unique design.
Unlike the traditional Card Lok, the 280HT Card Lok features solid brackets along the length of the Card Lok that provide a continuous and uniform surface along the printed circuit board, or heat frame, and the cold wall. The internal geometry maximizes surface contact area while minimizing heat path distance from the board to the cold wall. You can view data sheet, performance data, and CAD files here.
The newly designed 263HC, 265HC, and 276HC High Clamp Force Card Lok Retainers provide an average of three times the clamping force of similarly sized Card Loks, meeting the growing demands of shock and vibration environments. Its small and lightweight design provides industry-leading board retention that is ideal for defense, space and aerospace applications.
bisco industries – Authorized Pentair Distributor
bisco is your local authorized distributor for Calmark card loks. We also offer card guides and enclosure housings for your electronic system. Visit us online to spec in your part!
Electronics Protection Simplified
Front Panels, PCB Retainers, & More
The Schroff product line features a full suite of complementary products for electronics protection. If you’re using one of the items in the graphic below then chances are Schroff offers the complimentary item. For example, if you’re working with front panels then you may also be using subracks and cases.

What is a LED Light Pipe?
Light pipes, often called LED light pipes because of their use with LEDs, are physical structures (either a transparent plastic rod or an optical fiber) that are used for transmitting light lengthwise. Integrating LED light pipes is an extremely cost effective option that helps eliminate the multiple steps associated with transporting light from one location to another. Light pipes transmit up to 80% of emitted light making them useful for a broad range of applications including security equipment, medical devices, and communications equipment.

bisco Now #1 Pentair-Schroff Distributor
bisco industries is now the number one distributor for Pentair’s Schroff brand. In 2010, bisco was named as an authorized Schroff distributor and quickly captured market share to become the leading Schroff distributor in North America. bisco industries stocks thousands of Schroff components and recently brought in a new stocking package to further boost its position in the marketplace.

Manufacturer Profile: Schroff
About Schroff
Schroff, a division of Pentair Technical Solutions, is a leading name in the electronics protection world. Schroff rose to prominence by helping to standardize the 19” subrack system which is now widely used for electronic infrastructure. Schroff continues to offer thousands of products for 19” subracks as well as larger rack systems and other PCB hardware and accessories. Schroff products can be found in applications ranging from data centers to medical equipment to military systems.
Schroff Products
- PCB Card Guides & Retainers
- Connectors
- Electronic Cabinets
- Electronic Cases
- Subracks
- Front Panels
To configure Schroff products search or browse bisco’s Schroff microsite or utilize one of Schroff’s product configurators.
#1 Schroff Distributor – bisco industries
bisco industries is an authorized Schroff distributor and the top Schroff distributor in North America. bisco’s ecommerce site provides easy online shopping for Schroff products by category and attributes. Not only that but bisco stocks hundreds of Schroff products all ready for same day shipment. Visit biscoind.com today!

Manufacturer Profile: Amatom
About Amatom
Amatom Electronic Hardware is a division of Carey Manufacturing which focuses on the production of PCB hardware and related components. Since it’s start in 1957, Amatom has built a reputation for innovative and dependable products. In fact, Amatom’s comprehensive product offering makes Amatom a go to source for electronic hardware.
Amatom Products
- Handles
- Standoffs
- Spacers
- Jack Screws
- Captive Panel Fasteners
- Washers
To configure products view Amatom’s online catalog.
Amatom Manufacturing Capabilities
Amatom manufacturers products from many materials including aluminum, steel, stainless steel, and brass. In addition, Amatom offers a wide variety of finishes and platings to meet application specific requirements. Regardless of the material or finish Amatom is able to offer competitive lead times and prices on custom and standard products by utilizing in-house CNC machining.
Amatom Distributor
bisco industries is proud to be an authorized Amatom distributor. bisco stocks thousands of Amatom electronic hardware components, all available for same day shipment. To search stock and get pricing visit biscoind.com.

Manufacturer Profile: Accurate Screw Machine (ASM)
About Accurate Screw Machine
Accurate Screw Machine (ASM) is a leading manufacturer of electronic hardware components including spacers, standoffs, thumb screws, and captive panel screws. Since its start in 1967, ASM has been recognized by leading OEMs, NASA and the US Military for superior performance. Today, ASM operates as a division of MW Industries and continues its tradition of excellence as an ISO9001 certified manufacturer. ASM’s products are used in a wide variety of industries including electronics, aerospace, medical, and telecommunications.
Accurate Screw Machine Manufacturing Capabilities
ASM utilizes Swiss style CNC machining to provide the fastest turnaround times in the industry with print to part jobs averaging two weeks or less. ASM’s quick and precise manufacturing processes are buttressed by its state of the art quality equipment.
Accurate Screw Machine Products
- Bushings
- Captive Screws & Assemblies
- Handles & Ferrules
- Locking Fasteners
- Nuts
- Panel Screw Retainers
- Screws – Standard, Set, Stud
- Spacers
- Springs
- Standoffs & Adapters
- Thumb Screws
- Washers
To configure ASM part numbers download the Accurate Screw Machine catalog.
bisco industries – Local Distributor for Accurate Screw Machine
bisco industries is your local Accurate Screw Machine (ASM) distributor. We stock hundreds of ASM products in our 7 distribution centers across North America. To find stock and pricing by part number visit biscoind.com and search the ASM part number.

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.

Visit bisco at Del Mar Electronics & Design Show 2016
bisco industries is excited to be exhibiting at the Del Mar Electronics & Design Show (DMEDS) 2016. The show starts tomorrow, May 4th and will run through May 5th at the Del Mar fairgrounds in San Diego, CA. The yearly trade show brings together manufacturers, distributors, and other industry players for training and networking. The show is free to attend and features over 65 seminars covering topics from 3D printing to cooling solutions. A full list of seminars and exhibitors is available at the DMEDS website.
DMEDS 2016 Hours
- May 4th, 2016 – 10 AM – 5 PM
- May 5th, 2016 – 10 AM – 3 PM
bisco is partnering with Pentair (Schroff / Birtcher / Calmark) for DMEDS 2016 and will be located at booth 516. Be sure to stop by booth 516 to hear from Pentair product experts and to learn how bisco can help optimize your supply chain. For additional information contact bisco Area Manager, Scott Webb. We look forward to seeing you at DMEDS 2016!

Manufacturer Profile: Birtcher
About Birtcher
Birtcher, now known as Schroff (a Pentair brand), designs and manufactures rugged printed circuit board (PCB) card guides, retainers and inserters/extractors used primarily in conduction cooled frame systems. Birtcher / Schroff PCB hardware is used on a wide variety of applications including electronics systems in vehicles, ships, and planes that must withstand various temperatures, turbulence, vibration, and shock. Birtcher / Schroff products are specifically designed to hold PCBs securely in place despite high shock and vibration all while providing superior heat dissipation.
Finding & Configuring Birtcher Products
Birtcher / Schroff’s PCB card guides, retainers, and inserters/extractors are highly customizable allowing users to configure everything from the length to the mounting style. To find and configure products for your application view the Birtcher / Schroff PCB hardware catalog.
Authorized Birtcher Distributor
bisco industries is proud to be an authorized Birtcher / Schroff distributor. As an authorized Birtcher distributor bisco stocks a wide variety of PCB hardware including such popular items as the 42 Series Wedge Loks. To find stock and availablity or to request a quote on non-standard items visit biscoind.com and simply search for the Birtcher / Schroff part number.