Hardness testing of small screws and bolts.
Hardness testing of small screws and bolts.
(OP)
Can someone help us find a proper sample preparation and hardness test mehtod for small screws and bolts. We are concerned with determination of both core hardness and case hardness.





RE: Hardness testing of small screws and bolts.
A sample run through a lab probably be more advisable to refine procedure and equipment.
If the parts are a reasonable size then a small hand held portable hardness tester with a built-in magnifying glass and light is also available from PTC instruments. It may be also be available from Techni-Tools, Edmund Scientic, or through a Test equpment suppliers list annually published by "Quality" magazine. Hope this helps.