FASTENERS
HIGH STRENGTH STRUCTURAL BOLTING FOR PRELOADING
BS EN 14399-3 HR SYSTEM
PITCH
DIAMETER
DEPTH OF WASHER FACE (W) MIN
L =
125-200
L ≤ 125
L ≥ 200
THREAD (T)
THREAD (T)
THREAD (T)
DEPTH OF WASHER FACE (W) MAX
DIAMETER OF WASHER FACE (DW)
TRANSITION
DIAMETER
(DA)
PITCH
DIAMETER
HEAD THICKNESS
(H) MIN
SHANK DIA
(DS) MIN
A/C (C)
MIN
A/F (F)
MIN
RADIUS
(R)
SHANK DIA
(DS) MIN
SHANK DIA
(DS) MAX
HEAD THICKNESS
(H) MAX
A/F (F)
MAX
BS EN 14399-3 NUT DIMENSIONS
PITCH
DIAMETER
T (MIN)
DW (MIN)
C (MIN)
T (MIN)
W (MAX)
F (MAX)
F (MIN)
W (MIN)
-
Dimensions in millimetres
-
Available in Grade 8.8 &10.9 Steel
-
System shown is EN14399-3 Hex Bolt & Nut HR System
-
Bolt/nut assemblies according to this standard shall be assembled with washers in accordance with EN 14399-6 or in accordance with EN 14399-5 (under the nut only)
-
EN14399-4 Hex Bolt & Nut HV System dimensions differ from above
