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SHEET METAL SCREW (SMS) GENERAL NOTES <br />1. THE ALLOWABLE STRENGTHS ARE BASED UPON THE AISI S100-07/S2-10 AND ARE LIMITED BY <br />ACTUAL TESTED STRENGTH OF THE SCREWS IN TENSION AND SHEAR. <br />2. THE ALLOWABLE STRENGTHS ARE BASED UPON THE LEAST OF THE AVERAGE TESTED TENSILE <br />AND SHEAR STRENGTHS TABULATED FROM ICC ESR’S 1976, 2196, 1730, 1408, AND THE STEEL <br />STUD MANUFACTURER’S ASSOCIATION (SSMA). FASTENER TYPES AND SIZES APPLY TO NON- <br /> PROPRIETARY FASTENER TYPES AND SIZES, AND DOES NOT ENDORSE A SPECIFIC <br /> MANUFACTURER. WHERE PROPRIETARY FASTENERS ARE SPECIFIED, NO EXCEPTIONS ARE <br /> TAKEN TO THE USE OF MANUFACTURER SPECIFIC VALUES THAT ARE BASED UPON THE AISI <br /> S100-07/S2-10, SECTION E4. ALL SCREW FASTENERS SHALL SATISFY ICC-ES AC118- <br /> ACCEPTANCE CRITERIA FOR SELF TAPPING SCREW FASTENERS. <br />3. TABLE 1 REPRESENTS ALLOWABLE TENSION AND SHEAR STRENGTHS FOR NON-PROPRIETARY <br />SHEET METAL SCREWS FOR STEEL TO STEEL CONNECTIONS. <br />4. TABLES 2 AND 3 REPRESENT ALLOWABLE TENSION AND SHEAR STRENGTHS THAT <br />INCORPORATE THE EFFECTS OF EITHER ONE (1) OR TWO (2) LAYERS OF 5/8” GYPSUM BOARD <br />BETWEEN FASTENER HEAD AND CONNECTING STEEL MATERIAL. <br />5. IN ORDER TO USE THE VALUES IN TABLES 1, 2, AND 3, THE ATTACHMENTS SHALL BE DETAILED <br />IN SUCH A WAY AS TO AVOID PRYING AND THE STUDS MUST BE STABILIZED WITH FULL-DEPTH <br />BLOCKING WITH CONTINUOUS STRAPS ALONG THE FLANGES OR WITH BACKING BARS. <br />6. PENETRATION OF SCREWS THROUGH JOINED MATERIAL SHOULD NOT BE LESS THAN THREE (3) <br />EXPOSED THREADS. <br />7. STEEL THICKNESSES JOINED ARE ASSUMED TO BE THE SAME. IF DISSIMILAR THICKNESSES ARE <br />BEING CONNECTED, THE VALUE FOR THE THINNER PART JOINED SHALL BE USED. <br />8. THE MINIMUM SPACING BETWEEN CENTERS OF FASTENERS SHALL NOT BE LESS THAN 3 X <br />FASTENER DIAMETER. THE MINIMUM EDGE DISTANCE FROM THE CENTER OF A FASTENER TO <br />THE EDGE OF ANY PART SHALL NOT BE LESS THAN 1.5 X FASTENER DIAMETER. WHERE THE END <br />DISTANCE IS PARALLEL TO THE FORCE ON THE FASTENER, THE NOMINAL SHEAR STRENGTH <br />SHALL BE LIMITED BY SECTION E4.3.2 OF THE AISI S100-07/S2-10. <br />9. GALVANIZED METAL STUDS, TRACK AND SHEET STEEL SHALL CONFORM TO ASTM A653-09a <br />MATERIAL (OR OTHER EQUIVALENT ASTM LISTED MATERIALS IN THE AISI S100-07/S2-10, <br />SECTION A2.1) WITH A MINIMUM YIELD STRENGTH OF 33 KSI FOR 43 MIL (18 GA) AND LIGHTER, <br />AND MINIMUM YIELD STRENGTH OF 50 KSI FOR 54 MIL (16 GA) & HEAVIER. <br />10. WHERE VALUES ARE NOT GIVEN, SUCH COMBINATIONS OF SCREW SIZES & MATERIAL <br />THICKNESS ARE NOT RECOMMENDED. <br />11. IF THE ATTACHMENT DETAILS RESULT IN PRYING WITH A MOMENT ARM NOT TO EXCEED 1 5/8”, <br /> THE VALUES IN TABLE 4 MAY BE USED. IF THE ATTACHMENT DETAILS RESULT IN PRYING WITH A <br /> MOMENT ARM THAT EXCEEDS 1 5/8”, THE REGISTERED DESIGN PROFESSIONAL IN <br />RESPONSIBLE CHARGE OF THE PROJECT SHALL DETERMINE THE ALLOWABLE VALUES AND <br /> SUBMIT SUBSTANTIATION FOR THEM TO OSHPD FOR REVIEW. <br />12. INTERACTION OF SHEAR AND TENSION SHALL BE BASED ON T/T + V/V ≤ 1.0. <br />13. REFER TO NOTE 6A ON CG0.00 FOR ADDITIONAL SHEET METAL SCREW REQUIREMENTS. <br />ALL ALL <br />OPD No:Section Title : <br />Sheet Title : <br />OSHPD STANDARD GYPSUM BOARD CEILING DETAILS <br />5/ <br />9 <br />/ <br />2 <br />0 <br />1 <br />7 <br /> <br />9 <br />: <br />0 <br />7 <br />: <br />2 <br />9 <br /> <br />A <br />M <br />GX1.30SHEET METAL SCREW GENERAL NOTES <br />M. R. Karim <br />OPD-0003-13 <br />05/11/2017 <br />REFERENCE A1 1401 N Tustin Ave Unit# <br />170 - TI1/27/2025