| 1 |   | [DIN EN ISO] DIN EN ISO  10644 - 1998
 | Screw and Washer Assemblies Made of Steel with Plain Washers – Washer Hardness Classes 200 HV and 300 HV 
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            | 2 |   | [DIN] DIN  6900-1 - 1990
 | Hexagon Head Bolts and Plain Washers Assemblies 
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            | 3 |   | [JIS] JIS B 1187 (T8) - 2017
 | Small Recessed Hex Head Bolts and Flat Washer Combination 
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            | 4 |   | [GB] GB  9074.13 - 1988
 | Cross Recessed Hexagon Bolt with Indentation, Single Coil Lock Washer and Plain Washer Assemblies 
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            | 5 |   | [GB] GB  9074.12 - 1988
 | Cross Recessed Hexagon Bolt with Indentation and Single Coil Spring Lock Washer Assemblies 
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            | 6 |   | [JIS] JIS B 1187 - 1995
 | Small Recessed Hex Head Bolts and Flat Washer Combination 
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            | 7 |   | [GB] GB  9074.11 - 1988
 | Cross Recessed Hexagon Bolt with Indentation and Plain Washer Assemblies 
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            | 8 |   | [ASME/ANSI] ASME/ANSI B 18.13 - 1996
 | Hexagon Cap Screw and Spring Washer Assemblies - SEMS | 
                    
            | 9 |   | [ASME/ANSI] ASME/ANSI B 18.13.1M - 2011
 | Metric Hexagon Cap Screw and Spring Washer Assemblies-SEMS (Machine Screw Thread Diameter) | 
                    
            | 10 |   | [ASME] ASME B 18.13 - 2017
 | Hex Head Screw and Helical Spring Lock Washers for SEMS | 
                    
            | 11 |   | [DIN EN ISO] DIN EN ISO  10644 (S1)
 | Hexagon Head Bolts (Full Thread) and Washer Assemblies with Plain Washers | 
                    
            | 12 |   | [DIN EN ISO] DIN EN ISO  10644 (S2)
 | Hexagon Head Bolts and Washer Assemblies with Plain Washers | 
                    
            | 13 |   | [GB] GB  9074.16 - 1988
 | Hexagon Head Bolt and Serrated Lock Washer External Teeth Assemblies | 
                    
            | 14 |   | [JIS] JIS B 1187 - 1995
 | Small Hexagon Head Bolt and Flat Washer Assemblies | 
                    
            | 15 |   | [GB] GB  9074.15 - 1988
 | Hexagon Head Bolts and Single Coil Spring Lock Washer Assemblies | 
                    
            | 16 |   | [GB] GB /T 1231 (assemblies) - 2024
 | High Strength Bolts with Large Hexagon Head Assemblies for Steel Structures | 
                    
            | 17 |   | [JIS] JIS B 1187 - 1995
 | Hexagon Head Bolt and Plain Washer Assemblies | 
                    
            | 18 |   | [JIS] JIS B 1187 (T6) - 2017
 | Small Hexagon Head Bolt and Flat Washer Assemblies | 
                    
            | 19 |   | [JIS] JIS B 1130 - 2006
 | Hexagon Head Tapping Screws and Plain Washer Assemblies | 
                    
            | 20 |   | [GB] GB  9074.14 - 1988
 | Hexagon Head Bolt and Plain Washer Assemblies | 
                    
            | 21 |   | [GB] GB /T 9074.1 (S1)
 | Hexagon Head Bolts (Full Thread) And Washer Assemblies with Plain Washers | 
                    
            | 22 |   | [JIS] JIS B 1187 - 1995
 | Hexagon Cap Screw and Spring Washer Assemblies | 
                    
            | 23 |   | [JIS] JIS B 1187 (T4) - 2017
 | Hexagon Head Bolt and Serrated Lock Washer External Teeth Assemblies | 
                    
            | 24 |   | [GB] GB  9074.17 - 1988
 | Hexagon Head Bolt, Single Coil Spring Lock Washer and Plain Washer Assemblies | 
                    
            | 25 |   | [JIS] JIS B 1187 (T6) - 2017
 | Small Hexagon Head Bolt and Serrated Lock Washer External Teeth Assemblies | 
                    
            | 26 |   | [JIS] JIS B 1187 (T4) - 2017
 | Hexagon Cap Screw and Spring Washer Assemblies | 
                    
            | 27 |   | [JIS] JIS B 1187 (T6) - 2017
 | Small Hexagon Cap Screw and Spring Washer Assemblies | 
                    
            | 28 |   | [JIS] JIS B 1187 - 1995
 | Small Hexagon Cap Screw and Spring Washer Assemblies | 
                    
            | 29 |   | [JIS] JIS B 1130 - 2012
 | Cross Recessed Pan Screw Assemblies with Washers | 
                    
            | 30 |   | [GB] GB /T 9074.1 (S2)
 | Hexagon Head Bolts and Washer Assemblies with Plain Washers | 
                    
            | 31 |   | [JIS] JIS B 1187 (T4) - 2017
 | Hexagon Head Bolt and Plain Washer Assemblies | 
                    
            | 32 |   | [KS] KS B 1040 - 2012 (R2022)
 | Hexagon Head Screws and Spring Washer Assemblies | 
                    
            | 33 |   | [KS] KS B 1040 - 2012 (R2022)
 | Hexagon Head Bolt and Plain Washer Assemblies | 
                    
            | 34 |   | [KS] KS B 1040 - 1998
 | Hexagon Head Screws and Spring Washer Assemblies | 
                    
            | 35 |   | [KS] KS B 1040 - 1998
 | Hexagon Head Bolt and Plain Washer Assemblies |