// CODE SNIPPET
2.23.10 Fastening of Guide Rails to Rail Brackets
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2.23.10.1 Type of Fastenings
Guide rails shall be secured to their brackets by clips, welds, or bolts.
Bolts used for fastening shall be of such strength as to withstand the forces specified in 2.23.5.2 and 2.23.9.1.
Welding, where used, shall conform to Section 8.8.
2.23.10.2 Size of Bolts for Fastening
The size of bolts used for fastening the guide rails or rail clips to the brackets shall be not less than specified in Table 2.23.10.2.
Table 2.23.10.2 Minimum Size of Rail-Fastening Bolts
| SI Units | Imperial Units | ||
|---|---|---|---|
| Nominal Mass of Guide Rail, kg/m | Minimum Diameter of Rail Bolts, mm | Nominal Weight of Guide Rail, lb/ft | Minimum Diameter of Rail Bolts, in. |
| 8.5 | M12 | 53/4 | 1/2 |
| 9.5 | M12 | 61/4 | 1/2 |
| 12.0 | M12 | 8 | 1/2 |
| 16.5 | M16 | 11 | 5/8 |
| 18.0 | M16 | 12 | 5/8 |
| 22.5 | M16 | 15 | 5/8 |
| 27.5 | M16 | 181/2 | 5/8 |
| 33.5 | M20 | 221/2 | 3/4 |
| 44.5 | M20 | 30 | 3/4 |
2.23.10.3 Bolt Holes for Fastenings
The diameter of holes or the width of slots for fastening bolts shall not exceed the diameter of the bolt by more than 2 mm (0.08 in.).
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