Standard_Parts_Catalogue

Page 1122 | 3.2 Mounting, Positioning, Leveling with Screws, Clamping and Supporting Elements GN 251 Setting Bolts 1 d 1 2 l 1 3 Type How to order 1 2 3 GN251-M8-40-BK 3 Type AK Locating surface with rounded end, hardened BK Locating surface with Polyurethane disk Setting bolts GN 251 can be used as as an end stop as well as for sup- port. The version with polyurethan disk (Type BK) functions as damping element or protection for sensitive surfaces. see also... • Mounting Blocks GN 412.1 → Page 956 • Setting Bolts GN 251.6 (with Retaining Magnet) → Page 2066 Information • Screw Steel, property class 5.8 • Type AK Blackened Locating surface, hardened (HRC 45) • Type BK Nickel plated Polyurethane disk, 90 Shore • Hexagon nut Steel zinc plated, blue passivated • Strength Values of Screws → Page 2152 • RoHS Specification 1 2 d 1 l 1 Type AK e k 1 k 2 l 2 max. s M  3 10 15 20 25 30 - - - - -  6,4 2    2,4 1,5 5,5 M  4 10 15 20 25 30 35 40 - - -  8,1 2,8 3,2 2,1 7   M  5 10 15 20 25 30 35 40 50 - -  9,2 3,5 4   2,4 8   M  6 15 20 25 30 35 40 50 - - - 11,5 4    5   3   10   M  8 15 20 25 30 35 40 50 60 70 80 15    5,5 6,5 3,7 13   M 10 30 35 40 50 60 70 80 - - - 19,6 7    8   4,5 17   M 12 30 35 40 50 60 70 80 - - - 21,9 8   10   5,2 19   M 16 50 60 70 80 - - - - - - 27,7 10   13   6   24   1 2 d 1 l 1 Type BK d 2 e k 1 k 3 l 2 max. l 3 s M  4 15 20 25 30 35 40 -  5 8,1 2,8 2,4 2,1 1,5 7  M  5 15 20 25 30 35 40 -  6 9,2 3,5 3,2 2,4 1,5 8 M  6 20 25 30 35 40 45 50 8 11,5 4   3,6 3   2   10 M  8 20 25 30 35 40 45 50 10 15    5,5 5   3,7 2   13 M 10 20 25 30 35 40 45 50 13 19,6 7   6   4,5 2   17