for more information:

Norm-iFR

Developed thread form to improve fatigue resistance of bolt

Same static strength withstandard bolt

Same breaking torque withstandard bolt

Easily used with standard threaded nuts

10007 Sk. No: 1/1 A.O.S.B. Çiğli-İZMİR TurkeyTel: +90 232 376 76 10 Faks: +90 232 376 76 13

info@normcivata.comwww.norm-fasteners.com.tr

Improved Fatigue Resistance

Norm - iFR vs Standard BoltM8x1.25 DIN 933 8.8 PN

Force Amplitude (kN)

Ratio

of A

vera

ge F

atiq

ue L

ife (C

ycle

)(N

orm

-iFR

/ Sta

ndar

d Bo

lt)

2,0

1,8

1,6

1,4

1,2

1,0

0,8

0,6

0,4

0,2

0,0

3 3.5 5.36

1,761,48

1,08

Wohler Curve Comparison

Standart Bolt Vs Norm-iFRM8x1.25 DIN 933 8.8 PN Bolt

Cycle (x1000)

Fa (k

N)

IMPROVED FATIGUERESISTANCE

Fm=21.1 kNTesting Machine: Zwick Amsler 250 HFP 5100Loading Condition: Axial (Tension-Tansion)Test Frequency= 75 HzReplication= %83.3 accord. ASTM E73995% Confidence Interval accord. ASTM E739

2

3

4

5

6

100 1000 10000

10081436

2.6 kN

Norm - iFR

P=%50P=%50

StandartBolt

TEST andAPPLICATION CENTER

Perthometer

Profile Projection

Video Projection

Spectrometer

Mechanical & Statical Testers

Optical Microscopes

Stereo - zoom Microscopes

Molding, Cu�ing andPolishing Equipments

Thermal Camera

Hardness Measurement Testers

Coordinate MeasuringMachine (CMM)

Fatigue Tester

Bi - axial Vibration Tester

Torque - Tension Tester

for more information:

10007 Sk. No: 1/1 A.O.S.B. Çiğli-İZMİR TurkeyPhone: +90 232 376 76 10 Fax: +90 232 376 76 13

info@normcivata.comwww.norm-fasteners.com.tr