BS 4190:1967
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification for ISO metric black hexagon bolts, screws and nuts
Hardcopy , PDF
02-15-2001
English
11-30-1967
Cooperating organizations
Foreword
Specification
1. Scope
2. Finish
3. General dimensions
4. Length of bolts and screws
5. Ends of bolts and screws
6. Screw threads
7. Length of thread
8. Nuts: squareness of thread to face
9. Chamfering and facing
10. Diameter of shank of bolt
11. Drilled bolts and split pin holes
12. Strength grade designation system for steel bolts
and screws
13. Material and manufacture of steel bolts and screws
14. Mechanical properties of steel bolts and screws
15. Strength grade designation system for steel nuts
16. Material and manufacture of steel nuts
17. Mechanical properties of steel nuts
18. Marking and identification
19. Inspection and testing
20. Complete designation for the purpose of an enquiry
or order
Appendices
A. Testing of mechanical properties of steel bolts
and screws
B. Testing of mechanical properties of steel nuts
C. Sizes greater than 68 mm diameter
D. BSI policy statement on screw threads and the
metric system
E. Manufacturers' recommended range of sizes
Tables
1. Product categories
2. Tolerance on nominal length
3. Thread tolerance classes
4. Thread lengths
5. Thread runout (bolts) and underhead distance (screws)
6. Split pin holes
7. Strength grade designations for steel bolts and
screws
8. Strength grade designations for steel nuts
9. Recommended bolt and nut combinations
10. ISO metric black hexagon head bolts and screws
11. ISO metric hexagon head bolts and screws faced
under head or faced under head and turned on shank
12. ISO metric hexagon nuts and hexagon thin nuts
13. Standard nominal lengths and preferred sizes of
SI metric black hexagon bolts and screws
14. Mechanical properties of steel bolts and screws
15. Acceptance tests for steel bolts and screws
16. Mechanical properties of steel nuts
17. Chemical composition of steel nuts
18. Proof loads for steel bolts and screws
19. Proof loads for steel nuts
20. Dimensions for wedge loading test
21. Angle dimensions for head soundness test
22. Sizes greater than 68 mm diameter
Figures
1. Rounded end
2. Rolled thread end
3. Hexagon head bolt
4. Hexagon head screw
5. Head chamfering
6. Alternative types of normal thickness nut
7. Thin nut
8. Examples of marking of forged bolt or screw
9. Example of marking of bar turned bolt or screw
10. Example of marking of bar turned nut (optional)
11. Test piece
12. Application of proof load to full size bolt
13. Wedge loading of full size bolt
14. Head soundness test
15. Proof load test for nut
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