Direct Fastening


The Ramset series of disc tools proved to be a real work horse for years. The D-60 tool kit was
the choice of many electricians as it was quiet and featured a power adjustment. The D-45 tool
was a real brute. With its super tough front end, it was a great tool for general work and held up
very well in difficult situations like shooting foam to concrete foundations, or 2x to steel. The
Autofast tool was a favorite of many framers. The disc series of tools from Ramset has been
out of production for some time and many of the parts have become obsolete. But the old
Ramset guns just keep going! Sadly though, we are coming to the end of the load supply for
the tools. We still have a fair supply of the yellow, but we have exhausted our source for brown,
green and red disc loads. So now what? Below find our recommendations for replacement
tools. You can also shop them at our ecommerce site here.

Ramset Cobra
The Ramset Cobra is a solid time proven design. It is considered a clone of the Hilti DX-350 tool and is fully serviceable. That meansRamset Cobra parts, all the parts are readily available. Please don’t confuse it with the Cobra Plus models you find at the big box stores. Finding parts for these tools is not easy at all. We have the pistons but that is about it. The Cobra tool is a good allaround tool that will handle up to a 3” pin with a washer. Pins and loads are readily available. One application we do not recommend for the tool is fastening foam to foundations. A tool like the Ramset XT540 has a much stronger front end that can handle this overdrive application. The Cobra can be mounted on an extension pole for overhead work but if you shoot any number of hangers overhead, consider the Ramset Viper 4 tool below.

Ramset Viper 4
Ramset Viper 4The Ramset Viper 4 is a powder tool and more of a specialized tool. The tool will only fire to the ceiling and must be used on a pole. If you are an electrician, acoustic contractor, or a low voltage contractor, this would be a good choice for you. Any time you are needing to suspend ceiling lights or cables, this is the way to go. While it can only fire up, you can always add an inexpensive Cobra Ramset when you do need to shoot to the wall or floor. It will use the same pins and loads as your Viper 4.

Ramset RA27
The Ramset RA27 is a production-oriented tool that is a good choice for work like drywall track or other applications where you will be shooting the same size pin over and over again. The optional magazine will handle pins up to 1-5/16”. If you are shooting without the magazine, the RA27 will handle up to a 2” pin with washer. The tool has a power adjustment feature and is nicely balanced for all day use. The tool will also shoot clips and assemblies and can be used on an extension pole. This tool is designed to compete side by side with the popular Hilti DX351 too

Ramset XT540
Ramset XT540This Ramset XT540 tools is a heavy duty tool that can stand up to a lot of hard use. What constitutes hard use? In my experience two applications come to mind. One is shooting a lot of steel. The XT540 has a very strong front end that can take the heavy hit of red loads day in and day out. The second and one that seems to be even harder on a powder actuated tool is shooting foam to concrete. Typically, in this scenario the pin free flights through the foam and you can have a lot of overdrive. This is even more exaggerated when the concrete is very green. The front-end design of the XT540 is made to handle these applications. The tool features a power
adjustment and can be outfitted with a magazine. The longest pin is a 3” with a washer. The longest pin when using the magazine is 1-5/16”.

In Conclusion
So when you finally have to part with your Ramset Disc tool, you have choices. Hopefully one of the tools listed will fit the bill for your application. Visit or e commerce site for a replacement for your faithful old Ramset Disc Tool as well as pins loads and accessories. If you are a contractor and not sure what the best option is, give a call toll free at 1-877-212-2377.


New for your direct fastening application, the Ramset T4SS Tool Kit.  The T4SS replaces the T3SS tool from Ramset, the industy leader.  The T4SS single shot tool uses the same clips and assemblies as the T3SS but the fuel cells and the batteries are a little different.  The  tool features a battery and fuel level monitor so you know where you stand.  The batteries are lithium ion and offer more than 3,000 shots per charge.  The fuel cells are smaller but their size will offer you a little more control over the usage.  Like the T3SS, the Ramset T4SS tool can be used on a pole tool for overhead applications.  Another improvement is a depth adjustment.  A wide variety of pins and assemblies are offered making this the go to tool for electrical, mechanical and low voltage contractors.  No licensing is required to operate the tool.  Add a magnetic probe to shoot the mechanical pins, the fastest way to attach duct strap.  Visit our e-commerce site to shop the tool and supplies.

Learn More About The Ramset T4SS Tool Kit

Learn More About The Ramset T4SS Tool Kit


Fastening 2x material to steel is fast and easy with a Ramset, Hilti or other powder actauted tool as long as you keep a few things in mind.  First off, make sure your steel is thick enough to fasten to with a powder actuated tool (P.A.T.).  A good rule of thumb is if the steel is at least as thick as the shank of the pin, you should be good to go.  The pin we recommened for fastening 2x material to steel with a P.A.T. tool is the Ramset SP178 which has a shank diameter of .150 on the thinner part of the shank (about 5/32″).  The steel can be much thicker even 3/4″.  The pin will only go in about 1/2″ if your tool has enough power.  You don’t need to penetrate the steel for full holding power.  Obviously you would want to penetrate thinner steel.  Click here if you would like to see performance in steel.  

You will likely need you highest power level, but for safety sake, start with lower power and work your way up.  As long as we are on safety, any time you fire your P.A.T. keep your safety glasse on and you will for sure want hearing protection when firing to steel.  If fastening 2x to steel on a regular basis, I would recommend a tool like the Ramset XT540 or the Simpson PTP27.  Both tools have a well built front end which will hold up to heavy hit of shooting to steel.

If you are looking for a fast way to fasten 2x material to steel using a Hilti, Ramset or other powder actuated tool really does work well.  Keep in mind the requirements mentioned above as well as taking the proper safety precautions and you will be pleasantly suprprised how well it works.  You can find the Ramset SP178 pin for fastening 2x material to steel here.

Construction Fastening Systems deals with all of the trades but we have a very strong prescence in the voice/data, security and low voltage trades.  We didn’t set out to be there, but customer requests made it clear that there was a need for it.  Over the years we have worked with many voice/data contractors to solve their install issues.  So whether you are looking for a very basic cable support or a way to mount that support, we likely have what you are looking for.  Below you will find some key products for the cabling trades.  If you run into a difficult application, don’t hesitate to give us a call at 1-877-212-2377 or contact us via our contact page.  We would be happy to help!


Basic J-Hooks.  For years we had requests for j hooks from our customers.  Finally one of our suppliers a produced a generic UL listed j hook in the standard sizes.  Available in 3/4″, 1-5/16″, 2″ and 4″ sizes. These continue to be one of our best sellers.  They are available in a variety of configurations to fit your install.  They have a great price point and as a day in day out cable support, they will save you money.  While most of our customers are using hook and loop to secure the bundles, a plastic retainer is available for the 1-5/16″ and 2″ sizes.

The Arlington Loop.  The Arlington Loop is a plastic hanger approved for use in air handling spaces.  We were one of the first distributors in the midwest to champion the loop.  The Loop is available in a 2″, 2-1/2″ and 5″ size.  Cost and flexibility is one of the reasons why the Arlington Loop has been a big mover for us. We make a few different custom versions including one with a hammer on clamp for flanges and beams as well as one with a multi clip or bat wing for grabbing on to grid wire.  We do a lot with nation wide rollout projects that we build the hammer on version by the pallet.  Learn more about the Arlington Loop here.

Pre-tied Ceiling Clips.  This is another product a customer begged us to make for him.  He needed 300 to suspend a cable run.  Well we gave in and now we tie thousands upon thousands!  Many are shooting up a grid wire and then twisting on a j-hook or Arlington Loop.  Some are adding a second cable hanger up the grid with a bat wing or multi clip.  Shipping can be a challenge.  We encourage you to buy in packs of 200 as the shipping is virtually the same.  A second option for you is to buy one of our hand wire twisters and make what you need as you go.  A word of caution.  If you are tying on clips for your Ramset or Hilti tool, make sure you use a quality clip like the Ramset SPC78 or SPC114 for a better “stick” rate.  You can find them here.


What Is Direct Fastening Anyway? Direct fastening is the process of forcing a stud or nail into concrete and steel.  It is direct in that it eliminates any pre-drilling or tightening to expand an anchor.  The most common form of direct fastening still has to be forcing a pin into concrete to fasten 2x material or metal studs for drywall. 

Construction Fastening Systems, Inc.

Specialty tools & fasteners for the trades.
952.230.7725Toll Free 1.877.212.2377

Serving the entire U.S.

Based In Twin Cities, MN

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