Extra 300LT - Width Across Flats for Metric Bolts

CHAPTER 20
PAGE 6
PAGE DATE: 7. July 2010
MAINTENANCE MANUAL EXTRA 300LT
Example: DIN 931, M10 x 80 - 8.8
Bolt Head Identification Standard hex head bolt
Metric thread size M10
Length 80mm (3.15")
Strength type 8.8
DIN 931: DIN 933:
20-10-02 Width Across Flats for Metric Bolts
Thread diameter Width across flats
M4 7 mm
M5 8 mm
M6 10 mm
M8 13 mm
M10 17 mm
M12 19 mm
M16 24 mm
M20 30 mm
M24 36mm
Identification of
manufacturer (OEV)
Bolt Head:
Strength type
(8.8 resp.12.9)