Screw clamp technology has been integrated into many other functional terminal blocks including fuse holders, electronic component holders, signal conditioning modules, surge protection modules, and more. Screw clamp technology offers the widest range of products for 24 AWG to 600 MCM wire applications. The reliability and quality of the connection is demonstrated by compliance with all worldwide standards including UL, CSA, and IEC


Products & Services
Terminal Blocks
Terminal blocks are modular, insulated blocks that secure two or more wires together. Terminal blocks consist of an insulating body and a clamping device. Their flexibility allows wiring to be centralized and makes it easier to maintain complex control circuits.
PCB Terminal Blocks
PCB terminal blocks are modular, insulated devices that mount on printed circuit boards (PCBs) and secure two or more wires together. Some have integral pin terminals and mount through holes in the board. Others plug into PCB-mounted pin strips.
Manholes and Manhole Covers
Manholes allow access to underground pipes, cables, meters and facilities. Manhole covers are used cover manholes.
Trench Shoring Equipment
Trench shoring equipment includes trench shields and other shoring devices that are used to prevent a dug trench from caving-in on workers or equipment.
ISO Containers
ISO containers, also called intermodal containers, are designed to transport freight by ship, truck or rail.

Product Announcements
McGard Special Products Division - FiberShield Manhole Security Device
The FiberShield manhole security system provides a level of strength and longevity never before available to this industry. They prevent theft and unauthorized access to manhole covers. This manhole... (read more)
McGard Special Products Division - DuraShield Manhole Security Device
The DuraShield is the most advanced, high level manhole security device available. Even the most aggressive attacks will be deterred by what many have referred to as a "bank vault door" of protection. (read more)
Res-Kem LLC -  Manways and Covers - Elliptical Yoke & Bolt
Elliptical Manway Covers for water treatment tanks are supplied by Res-Kem. Standard carbon steel elliptical steel manway assemblies can be supplied for existing installations. Custom sizes and... (read more)
McGard Special Products Division - Limit Manhole Access with The ManLock
Secure your manhole cover to its frame with McGard ManLock high security lock bolts to keep out intruders. Simple yet effective manhole security by way of a patterned bolt head helps to prevent... (read more)

Topics of Interest

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The following reference standards of the American Society for Testing and Materials (ASTM) are related to masonry products, testing, and construction. Clay Masonry Units ASTM C27, Fire Clay and...

OVERVIEW Underground transmission and distribution are installed when: Space is not available for overhead lines, as in the congested downtown areas of large cities. The hazard of...

Multiple lengths of cable are connected together to form a continuous length. These connections are called joints or splices. If underground ducts are used, the splices are normally completed in a...

Most of the pumps we see, both at home and at work, are centrifugal pumps. And most of these pumps are driven by constant-speed, alternating-current motors. 29.1 Head Centrifugal pumps are...