I believe it is 12mmX1.75 thread pitch.
A thread guide is a tool to measure the number and pitch of threads on a bolt
the parts of the screw are thread, pitch, and the last is bolt
6mm bolt with 1.0 thread pitch
You will probably have to re-thread unless you can get a SLIGHTLY over sized bolt to thread and seal
The crank bolt is right thread on a 96 geo metro. bob.
yes the Chevy in line 6 cylinder and the 350 share the same bolt pattern from 1963 and up.
Standard thread are meassured in number of threads per inch (example 1/4-20) 1/4 inch dia. bolt with 20 threads per inch. Metric threads are measured in mm between thread (M8 x 1.5), an 8 MM bolt with a thread pitch of 1.5MM between threads.
Yes, the bolt that holds the harmonic balancer in place on a 2001 Chevy Malibu is reverse thread. I learned that the hard way and stripped the head of my bolt down to nothing. And the bolt is almost impossible to find, because they no longer make them.
M30 - Coarse 3.5mm, Fine 2.0mm?Metric Thread Pitch and Tapping SizesSizePitch (mm)Tapping Diameter (mm)Clearance Holes (mm)CoarseFineCoarseFineCloseMediumCoarseM1.60.351.251.71.82.0M20.41.62.22.42.6M2.50.452.052.72.93.1M30.52.53.23.43.6M40.73.34.34.54.8M50.84.25.35.55.8M61.05.06.46.67.0M81.251.06.87.08.49.010.0M101.51.258.58.710.511.012.0M121.751.2510.210.8131415M162.01.514.014.517.018.019.0M202.51.517.518.521.022.024.0M243.02.021.022.025.026.028.0M303.52.026.528.031.033.035.0M364.03.032.033.037.039.042.0
The deck is the surface to which you bolt the cylinder heads to.
Take the bolt to a machine shop and they can tell you . if you dont have it most metric auto bolts have a 125 thread pitch but i dont know the diameter.