mcculloch rod bolt post

[doug tenney]

Chuck, if these are the spline head Mac 101 screws, they're still in good demand for Macs. For the West Bends, they'd be short. The rod cap on the 610/820 is taller than that of the 101, so you lose thread engagement. Bonbright told me not to use the 101 screw on my 610's The new screw from K Precision Motorsports is also somewhat stronger than the 101 screws, at 280 KSI tensile strength and 236 KSI yield. These are the reasons we Bender guys have been scrambling. If you decide to use the K Precision screw on Macs, you need to shorten them. Also, since the new screws have a regular hex head, make certain that the appropriate size socket will clear the rod cap body on your Mac rod. It clears fine on the West Bend cap, but I haven't got a Mac rod cap left to check.. Ted

I think you may have missed his point...