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Fastening Elements All-Metal “Multi-Functional Fastening Elements Combine a Number of Different Methods Ofsecuring the Fastened Joint in a Single Element.”

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Fastening Elements All-Metal “Multi-Functional Fastening Elements Combine a Number of Different Methods Ofsecuring the Fastened Joint in a Single Element.” Fastening elements All-metal “Multi-functional fastening elements combine a number of different methods ofsecuring the fastened joint in a single element.” 2 Benefits of using secure washers and nuts In a fastened joint, different measures are taken to This produces not only technical benefits, but also prevent the fasteners from loosening, unscrewing leads to a significant reduction in procurement, and getting lost. Multi-functional fastening ele- storing and assembly costs ments combine a number of different methods of securing the fastened joint in a single element. 100% A 80% B C 20% 0 Loosening Unscrewing Loosening mainly occurs as the result of axial If the dynamic shear forces working on a screwed forces. Rough interfaces are smoothed off and seals connection are so great that the assembled parts which are part of the screw connection may yield. move back and forth resulting in the screw or nut The working load can also lead to a plastic elon- can be unscrewed resulting in decreased preload. gation of the fastening element. The fastener work loosen and the preload force reduced. The screw or nut does not rotate. Loss Once a screw or nut starts to unscrew it will continue to unscrew even when subject to only a low level of vibration. This can eventually lead to lost fasteners. Subject to change without notice. Please refer to your local Bossard E-Shop for the current assortment and dimensions. Other variants upon request. 3 Measures to prevent fasteners from Measures to prevent loss of the loosening fastener Methods to prevent a fastening from working loose Protection against loss allows fastening elements work due to a reduction in the contact pressure to partially unscrew but prevents their loss. These or an increase in the elasticities of the fastening measures maintain up to 20% of the original preload elements. force. § Increased grip length § Locking nuts § Increased bearing face area § Grip coatings § Complimentary spring elements § Thread-forming elements (up to class 8.8) Measures to prevent fastening from unscrewing These measures prevent the fastener from unscrew- ing by itself. They maintain up to 80% of the original preload force. § Profiled fastening elements § Mechanical protection § Chemical protection Subject to change without notice. Please refer to your local Bossard E-Shop for the current assortment and dimensions. Other variants upon request. 4 All-metal fastening elements Prevailing torque type hexagon lock nuts type V3 ~DIN 980 V, all-metal J BN 64 | Steel 8, zinc plated d1 h max. s e min. M5 4,5 8 8,79 J M6 5,5 10 11,05 J M8 7,0 13 14,38 J M10 8,6 17 18,90 J Prevailing torque type hexagon lock nuts DIN 980 V, all-metal J BN 169 | Steel 8, zinc plated, without collar, J BN 170 | Steel 8, zinc plated, with collar d1 h max. s e min. d2 M4 4,2 7 7,66 J M5 5,1 8 8,79 J M6 6 10 11,05 J M8 8 13 14,38 J M10 10 17 18,90 J M12 12 19 21,10 J M18 with or without collar M14 14 22 24,49 J it depends on the producer M16 16 24 26,75 J M18 18 27 29,56 23,0 J M20–M24 with collar M20 20 30 32,95 27,5 J M22 22 32 35,03 29,5 J M24 24 36 39,55 31,0 J Subject to change without notice. Please refer to your local Bossard E-Shop for the current assortment and dimensions. Other variants upon request. 5 Prevailing torque type hexagon lock nuts ~DIN 980 V, all-metal BN 5242 | Stainless steel A2 d1 m max. s e M3 2,4 5,5 6,01 M4 3,2 7 7,66 M5 4 8 8,79 M6 5 10 11,05 M8 6,5 13 14,38 M10 8 17 18,90 M12 10 19 21,10 M16 13 24 26,75 M20 16 30 32,95 ¹) 3 pressure points on one side Prevailing torque type hexagon flange lock nuts DIN 6927 A, all-metal J BN 6782 | Steel 8, zinc plated d1 d2 max. h max. s M5 11,8 6,2 8 J M6 14,2 7,3 10 J M8 17,9 9,4 13 J M10 21,8 11,4 15 J M12 26,0 13,8 18 J M16 34,5 18,3 24 J Subject to change without notice. Please refer to your local Bossard E-Shop for the current assortment and dimensions. Other variants upon request. 6 Prevailing torque type hexagon lock nuts type FS DIN 980 M, all-metal M BN 20168 | Steel 8, zinc plated yellow d1 h s M6 6 10 M M8 8 13 M M10 10 17 M M12 12 19 M M16 16 24 M M20 20 30 M M24 24 36 M M30 30 46 M Prevailing torque type hexagon lock nuts type Vargal®, all-metal J BN 20125 | Steel ~8, zinc plated d1 h max. m s M5 6,3 4,6 8 J M6 8,2 4,5 10 J M8 10,8 6,7 13 J M10 12,6 8,6 17 J M12 16,6 10,6 19 J M14 18,6 12,6 22 J M16 20,6 13,5 24 J M18 22,5 14,5 27 J ¹) Spring: M5 – M18 Steel hot-dip galvanized M20 25,5 16,9 30 J M22 29,8 20,5 32 J M20 – M24 stainless steel M24 29,9 20,6 36 J M27 33,7 24,3 41 J M27 – M36 Steel phosphated M30 37,6 26,6 46 J M33 40,5 28,8 50 J M36 44,2 31,5 55 J Subject to change without notice. Please refer to your local Bossard E-Shop for the current assortment and dimensions. Other variants upon request. 7 Prevailing torque type hexagon lock nuts ~DIN 980 M, high type, all-metal J BN 19174 | Steel 6 / spring steel, zinc plated d1 s h ±0,2 M4 7 3,8 J M5 8 4,6 J M6 10 5,3 J M8 13 7,3 J M10 17 8,3 J M12 19 10,5 J M16 24 14,5 J M20 30 17,5 J Prevailing torque type hexagon lock nuts ~DIN 980 M, low type, all-metal J BN 19175 | Steel 04 / spring steel, zinc plated d1 s h ±0,2 M6 10 4,3 J M8 13 5 J M10 17 6,5 J M12 19 8,5 J M16 24 12 J Subject to change without notice. Please refer to your local Bossard E-Shop for the current assortment and dimensions. Other variants upon request. 8 Prevailing torque type hexagon lock nuts Palnut® DIN 7967 R BN 1964 | Spring steel, black d1 ~ e s m M4 8,1 7 2,5 R M5 9,2 8 2,5 R M6 11,5 10 3,0 R M8 15,0 13 3,5 R M10 19,6 17 4,0 R M12 21,9 19 4,5 R M16 27,7 24 5,0 R M20 34,6 30 6,0 R M22 36,9 32 6,0 R M24 41,6 36 7,0 R M30 53,1 46 8,0 R Prevailing torque type hexagon lock nuts Serpress®, all-metal J BN 20219 | Steel 6, zinc plated, M BN 185 | Steel 6, zinc plated yellow d1 d2 h s M4 9,0 3,7 7 J M M5 10,5 4,4 8 J M M6 12,5 5,2 10 J M M8 16,0 7,0 13 J M Hexagon slotted and castle nuts DIN 935 J BN 8365 | Steel 6, zinc plated d1 e min. m max. w max. n min. s M4 7,66 5,0 3,2 1,2 7 J M5 8,79 6,0 4,0 1,4 8 J M6 11,05 7,5 5,0 2,0 10 J Subject to change without notice. Please refer to your local Bossard E-Shop for the current assortment and dimensions. Other variants upon request. 9 Hexagon slotted and castle nuts DIN 935 J BN 157 | Steel 8, zinc plated, 1 BN 636 | Stainless steel A4 d1 e min. m max. w max. n min. s M6 11,05 7,5 5 2,0 10 1 1 M8 14,38 9,5 6,5 2,5 13 J 1 M10 18,90 12 8 2,8 16 J 1 M12 21,10 15 10 3,5 18 J 1 (M14) 24,49 16 11 3,5 21 J 1 M6-M10 M12-M20 M16 26,75 19 13 4,5 24 J 1 (M18) 29,56 21 15 4,5 27 J 1 M20 32,95 22 16 4,5 30 J 1 (M22) 35,03 26 18 5,5 34 J 1 M24 39,55 27 19 5,5 36 J 1 (M27) 45,20 30 22 5,5 41 J 1 M30 50,85 33 24 7,0 46 J 1 (M33) 55,37 35 26 7,0 50 J 1 M36 60,79 38 29 7,0 55 J 1 (M39) 66,44 40 31 7,0 60 J 1 M42 71,30 46 34 9,0 65 J 1 (M45) 76,95 48 36 9,0 70 J 1 M48 82,60 50 38 9,0 75 J 1 Hexagon slotted and castle nuts DIN 935, metric fine thread J BN 160 | Steel 6 / 8, zinc plated d1 e min.
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