4GSR
Diamond
- Joined
- Jan 25, 2005
- Location
- Victoria, Texas, USA
I have a client that is having troubles finding a screw machine shop that can make brass slotted or socket headless set screws. There are many shops out there that can make them but have no way to shear test them to verify what they shear at. Specifics can be provided, for general, the sizes he is looking at are from 1/4-20 up to 1/2-13 and in different lengths of 5/16 to over 3/4" long. Material grade and selection is open, suggested grade is 360 half hard brass. Quantities are 3000 plus in a given size. We can provide specifications for a shear fixture the sample screws go in. Nothing fancy, real simple, about 3" in diameter and about 2" long. Amount of force to shear three shear screws, required for the fixture will hold, not to exceed 12,000 lbs. We are not trying to shear to a specific value, just need a verification of what the screws shear at from each heat of material used. Does not have to be certified by a testing lab even though that might be an good idea. The industry this is used in is the oilfield down hole tool market.
Anyone set up to something like this, let me know. You can post here or send me a PM.
Ken
Monrator, I may not have this placed in the right forum, please move if you see fit.
Anyone set up to something like this, let me know. You can post here or send me a PM.
Ken
Monrator, I may not have this placed in the right forum, please move if you see fit.