SEMS Screw Operational Procedures
Preparation and Check
Check SEMS unit: Make sure that you are using the proper SEMS screw for the job. Check:
Screw Type: (i.e. M4, M6, #10-32)
Screw Length: Ensure it is suitable for the thickness of the material.
Screw Drive: (i.e. Phillips, Pozidriv, Hex, Torx).
Washer Type: Check that the washer is appropriate for the job (i.e., split lock washer for vibration protection, flat washer to distribute the load over a larger surface).
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"As an auto mechanic, time is valuable-I was wasting minutes every day searching for the right type of washer to go with screws. I shifted to SEMS screws (for valve covers, transmission pans, brackets, etc.) that expedited my workflow: you could always trust the washer was the correct size and would freely spin along the screw making placement easy. I have never used screws with a washer and found them consistent in quality. I did not have to deal with over-torquing or service issues with the washers deforming-they are definitely worth it for a professional."
"I have restored a 1969 Mustang and by the virtue of authenticity I knew the original fasteners were SEMS screws. I was glad to find a supplier that had the correct sizes and finishes. The pre-assembled washer provided an OEM-quality fit and finish (way better than screwing on a washer separately). They looked great and worked great-I would highly recommend the the screws for an application where details and consistency matter when restoring a car."
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