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ASME B18.6.4 Thread Forming and Thread Cutting Tapping Screws and Metallic Drive Screws (Inch) , 1998
- FOREWORD
- STANDARDS COMMITTEE ROSTER
- CORRESPONDENCE WITH B18 COMMITTEE
- CONTENTS
- TYPE DESIGNATIONS FOR TAPPING SCREWS AND METALLIC DRIVE SCREWS
- 1 INTRODUCTORY NOTES [Go to Page]
- 1.1 Scope
- 1.2 Tapping Screw Head Types
- 1.3 Screw Types and Application
- 1.4 Assembly Considerations
- 1.5 Dimensions
- 1.6 Options
- 1.7 Responsibility for Modification
- 1.8 Terminology
- 1.9 Related Standards
- 1.10 Designation
- 1.11 Comparison With ISO
- 1.12 Referenced Standards
- 1.13 Inspection and Quality Assurance
- 2 GENERAL DATA FOR TAPPING SCREWS [Go to Page]
- 2.1 Heads
- 2.2 Length
- 2.3 Threads and Points
- 2.4 Length of Thread
- 2.5 Diameter of Body
- 2.6 Material and Heat Treatment
- 2.7 Finishes
- 2.8 Workmanship
- 2.9 Performance Requirements and Tests
- 3 GENERAL DATA FOR METALLIC DRIVE SCREWS [Go to Page]
- 3.1 Heads
- 3.2 Length
- 3.3 Threads
- 3.4 Points
- 3.5 Length of Thread
- 3.6 Material and Heat Treatment
- 3.7 Finishes
- 3.8 Workmanship
- 3.9 Performance Requirements and Tests
- FIGURES [Go to Page]
- 1 TYPES AB, A, B, BF, BP, AND BT
- 2 TYPES C, D, G, AND T
- 3 TYPE F
- 4 TYPICAL TORSIONAL STRENGTH TEST FIXTURE
- TABLES [Go to Page]
- 1 THREAD LENGTHS FOR TYPES AB, A, B, BF, BP, and BT TAPPING SCREWS
- 2 THREAD LENGTHS FOR TYPES C, D, F, G, AND T TAPPING SCREWS
- 3 STANDARD TEST PLATE THICKNESSES AND HOLE SIZES FOR DRIVE TEST INSPECTION OF TAPPING SCREWS
- 4 TORSIONAL STRENGTH REQUIREMENTS FOR TAPPING SCREWS
- 5 DIMENSIONS OF THREADS AND POINTS FOR TYPE AB THREAD FORMING TAPPING SCREWS
- 6 DIMENSIONS OF THREADS AND POINTS FOR TYPES B AND BP THREAD FORMING TAPPING SCREWS
- 7 DIMENSIONS OF THREADS AND POINTS FOR TYPES BF AND BT THREAD CUTTING TAPPING SCREWS
- 8 DIMENSIONS OF THREADS AND POINTS FOR TYPES D, F, G, AND T THREAD CUTTING TAPPING SCREWS
- 9 DIMENSIONS OF SLOTTED FLAT COUNTERSUNK HEAD TAPPING SCREWS
- 10 DIMENSIONS OF TYPE I CROSS RECESSED FLAT COUNTERSUNK HEAD TAPPING SCREWS
- 11 DIMENSIONS OF TYPE IA CROSS RECESSED FLAT COUNTERSUNK HEAD TAPPING SCREWS
- 12 DIMENSIONS OF TYPE II CROSS RECESSED FLAT COUNTERSUNK HEAD TAPPING SCREWS
- 13 DIMENSIONS OF SLOTTED UNDERCUT FLAT COUNTERSUNK HEAD TAPPING SCREWS
- 14 DIMENSIONS OF TYPE I CROSS RECESSED UNDERCUT FLAT COUNTERSUNK HEAD TAPPING SCREWS
- 15 DIMENSIONS OF TYPE IA CROSS RECESSED UNDERCUT FLAT COUNTERSUNK HEAD TAPPING SCREWS
- 16 DIMENSIONS OF TYPE II CROSS RECESSED UNDERCUT FLAT COUNTERSUNK HEAD TAPPING SCREWS
- 17 DIMENSIONS OF TYPE I CROSS RECESSED FLAT COUNTERSUNK TRIM HEAD TAPPING SCREWS
- 18 DIMENSIONS OF TYPE IA CROSS RECESSED FLAT COUNTERSUNK TRIM HEAD TAPPING SCREWS
- 19 DIMENSIONS OF TYPE II CROSS RECESSED FLAT COUNTERSUNK TRIM HEAD TAPPING SCREWS
- 20 DIMENSIONS OF SLOTTED OVAL COUNTERSUNK HEAD TAPPING SCREWS
- 21 DIMENSIONS OF TYPE I CROSS RECESSED OVAL COUNTERSUNK HEAD TAPPING SCREWS
- 22 DIMENSIONS OF TYPE IA CROSS RECESSED OVAL COUNTERSUNK HEAD TAPPING SCREWS
- 23 DIMENSIONS OF TYPE II CROSS RECESSED OVAL COUNTERSUNK HEAD TAPPING SCREWS
- 24 DIMENSIONS OF SLOTTED UNDERCUT OVAL COUNTERSUNK HEAD TAPPING SCREWS
- 25 DIMENSIONS OF TYPE I CROSS RECESSED UNDERCUT OVAL COUNTERSUNK HEAD TAPPING SCREWS
- 26 DIMENSIONS OF TYPE IA CROSS RECESSED UNDERCUT OVAL COUNTERSUNK HEAD TAPPING SCREWS
- 27 DIMENSIONS OF TYPE II CROSS RECESSED UNDERCUT OVAL COUNTERSUNK HEAD TAPPING SCREWS
- 28 DIMENSIONS OF TYPE I CROSS RECESSED OVAL COUNTERSUNK TRIM HEAD TAPPING SCREWS
- 29 DIMENSIONS OF TYPE IA CROSS RECESSED OVAL COUNTERSUNK TRIM HEAD TAPPING SCREWS
- 30 DIMENSIONS OF TYPE II CROSS RECESSED OVAL COUNTERSUNK TRIM HEAD TAPPING SCREWS
- 31 DIMENSIONS OF SLOTTED PAN HEAD TAPPING SCREWS
- 32 DIMENSIONS OF TYPE I CROSS RECESSED PAN HEAD TAPPING SCREWS
- 33 DIMENSIONS OF TYPE IA CROSS RECESSED PAN HEAD TAPPING SCREWS
- 34 DIMENSIONS OF TYPE II CROSS RECESSED PAN HEAD TAPPING SCREWS
- 35 DIMENSIONS OF SLOTTED FILLISTER HEAD TAPPING SCREWS
- 36 DIMENSIONS OF TYPE I CROSS RECESSED FILLISTER HEAD TAPPING SCREWS
- 37 DIMENSIONS OF TYPE IA CROSS RECESSED FILLISTER HEAD TAPPING SCREWS
- 38 DIMENSIONS OF TYPE II CROSS RECESSED FILLISTER HEAD TAPPING SCREWS
- 39 DIMENSIONS OF REGULAR AND LARGE HEX HEAD TAPPING SCREWS
- 40 DIMENSIONS OF HEX WASHER HEAD TAPPING SCREWS
- 41 DIMENSIONS OF ROUND HEAD TYPE U METALLIC DRIVE SCREWS
- MANDATORY APPENDICES [Go to Page]
- I PROTRUSION GAGING OF FLAT COUNTERSUNK HEADS
- II ACROSS CORNERS GAGING OF HEX HEADS
- III PENETRATION GAGING OF RECESSED HEADS
- IV WOBBLE GAGING OF RECESSED HEADS
- V DIMENSIONS OF TYPE C TAPPING SCREWS
- VI DIMENSIONS OF 100 deg FLAT COUNTERSUNK HEAD SCREWS
- VII DIMENSIONS OF SLOTTED HEX HEAD SCREWS
- NONMANDATORY APPENDICES [Go to Page]
- A FORMULAS FOR DIMENSIONS
- B APPROXIMATE HOLE SIZES FOR TAPPING SCREWS
- C WRENCH OPENINGS FOR HEX HEAD SCREWS
- D DETERMINATION OF MAXIMUM EFFECTIVE DESIGN GRIP LENGTHS
- E DIMENSIONS OF TYPE A TAPPING SCREWS
- F DIMENSIONS OF TRUSS HEAD SCREWS
- G DIMENSIONS OF ROUND HEAD SCREWS
- H DIMENSIONS OF SLOTTED HEX WASHER HEAD SCREWS [Go to Page]