Q: We have plastic molding machines that uses a grade 8 screw to connect to the hydraulic motor. This grade 8 shoulder bolt often breaks and we want something a little tougher. We’ve already increased the diameter but don’t have enough shaft to go larger. Any suggestions?
A: What you might want to consider is our 17-4 PH bolts in the H900 condition. These will get you a min tensile of 190KSI versus Grade 8 alloy steel at 150KSI. This would be a significant improvement. Click here for more information on 17-4 screws.