Hex Flange Bolts UNC / UNF
IFI 111, Grade 8
Materials: Alloy Steel AISI 4135
Tensile Strenght: Min 150,000 psi
Core Hardness: HRC 33~39
Surface Hardness: HR30N MAX 58.6
Screw Threads: ANSI B1.1 UNC,UNF
Class of Thread: #8 through 3/4, 2A, 3A

Hex Flange UNF Hex Flange UNC
Hex Flange Bolts UNC UNF grade 8-2

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Hex Flange Bolts Metric
DIN 6921 CLASS 10.9
Materials: Alloy Steel AISI 4135
Tensile Strenght: Min 1040 Mpa
Core Hardness: HRC 32~39
Class of Thread: M5 through M16, 6g

Hex Flange Coarse Hex Flange Fine
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12 Point Flange Screws UNC / UNF
IFI 115
Materials: Alloy Steel AISI 4135/4140
Wedge Tensile: Min 170,000 psi
Core Hardness: HRC 373~43
Surface Hardness: HR30N MAX 58.6
Screw Threads: ANSI B1.1 UNC,UNF
Class of Thread: 1/4 through 3/4, 2A, 3A

12 Point UNC 12 Point UNF

12 Flange Screws - Metric 12.9
Socket Flange Serrated - Metric Class 100
Toplock Nuts - UNC / UNF Grade G

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Toplock Nuts – Metric Class 10
Toplock Nuts Metric

(Din 6927)
Torque Values and Friction Coefficient - All Metal Self Locking Nuts - Where Torque tightening equipment is used, account should be taken of the additional torque required to overcome the resistance of the prevailing torque locking nut. As a general guide, during initial experiments to determine the specific torque setting required to achieve the desired clamp load , the torque value should be increased by the “first removal minimum”value shown above.
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Flange Nyloc Nuts – Metric Class 10
DIN 6921 CLASS 10.9
Materials: Alloy Steel AISI 4135
Tensile Strenght: Min 1040 Mpa
Core Hardness: HRC 32~39
Class of Thread: M5 through M16, 6g

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fnn-nuts-class10-1

fnn-nuts-class10-2