The OEM fasteners for a Matrix without Air Brakes: 3.5oz.
![Image](http://i999.photobucket.com/albums/af120/derrick_m_laporte/7077EEDE-1C33-4B74-9B0F-9215CDC04C50_zpsbskxqdtz.jpg)
The Ti64.com Matrix fastener kit for bows without Air Brakes: 2.25 oz.
![Image](http://i999.photobucket.com/albums/af120/derrick_m_laporte/21193294-D220-4E26-BBD9-F1052ED4AC3D_zpsmgwn8uge.jpg)
These seven, (thanks, Dennis!), steel fasteners weigh as much as a whole Ti kit:
![Image](http://i999.photobucket.com/albums/af120/derrick_m_laporte/F257688D-8386-4509-B958-C3F0A56BC089_zpssgbwrtio.jpg)
Initial Impressions:
1.25 oz may not seem like much, but when you consider most of that mass is forward of your hands, you'll notice a difference. Take a stick, place a small weight at the end of it, about 2-3' forward of your hands and you'll see what I mean.
The shoulder bolts are a huge improvement over the stock ones. Gone are the button heads that frustrated the hell out of us. These Ti shoulder bolts are socket cap screws with a hex head two sizes larger...just what the doctor ordered.
Important Note:
It is recommended to use an anti-seize on any titanium fastener. They sell a Ti Moly Paste for $6 on the website, but any commercially available, high solids, MoS2 anti-seize will work. It seems counter-intuitive to to use an anti-seize because we all want our fasteners to stay tight. In fact, I have used titanium fasteners for over a year with only a dab of blue permatex without any problems at all. But I'll take the experts at their word. Ti64.com's engineers reminded me that the race cars that most of their fasteners end up on face way more vibration than our crossbows, and they all use the anti-seize without any loosening. So I'm taking them at their word and using the Ti Moly Paste they sell.
If you're interested, check them out at Ti64.com and look for the "Crossbows" link on the left.