High strength Bolts DIN7991 Hex Socket Flat Head Cup Screws, Class 10.9/12.9, Grade 8, ANSI, ASME

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Material：

Steel

Grade：

Class10.9

Finshing：

Black

Specifications：

M2×3(P0.4) M2×4(P0.4) M2×5(P0.4) M2×6(P0.4) M2×8(P0.4) M2×10(P0.4) M2×12(P0.4) M2×16(P0.4) M2×20(P0.4) M2.5×4(P0.45) M2.5×5(P0.45) M2.5×6(P0.45) M2.5×8(P0.45) M2.5×10(P0.45) M2.5×12(P0.45) M2.5×16(P0.45) M2.5×20(P0.45) M2.5×25(P0.45) M2.5×30(P0.45) M20×55(P2.5) M20×60(P2.5) M20×65(P2.5) M20×70(P2.5) M20×75(P2.5) M20×80(P2.5) M20×90(P2.5) M20×100(P2.5) M20×110(P2.5) M20×120(P2.5) M20×130(P2.5) M20×140(P2.5) M20×150(P2.5) M20×160(P2.5) M20×170(P2.5) M20×180(P2.5) M20×190(P2.5) M20×200(P2.5) All 37 Options

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Tel：

86-577-86665820

Fax：

86-577-86666708

QQ：

2851058923

Email：

owen@wztaisheng.com

Product Details

Basic Info

Material

Steel

Performance Grade

Class10.9

Surface Treatment

Black

Performance Grade

Class10.9

Tempering temperature min

425℃

Tensile Nom

900MPa

Tensile min

900MPa

Yield strength Nom

720MPa

Yield strength min

720MPa

Proof load Nom

650MPa

Elongation after fracture of machined test pieces min

10%

Percentage reduction of area after fracture, Machined test pieces min

48%

Vickers hardness F no less than 38N min

290HV

Vickers hardness F no less than 38N max

360HV

Brinell hardness F=30D^2 min

286HB

Brinell hardness F=30D^2 max

355HB

Rockwell hardness min

37HRC

Rockwell hardness max

当采用HV0.3测定表面硬度及芯部硬度时，紧固件表面硬度不应比芯部硬度高出30HVHRC

Surface hardness and Core hardness HV0.3

Hardness decrease of retempering max

20HV

Absorbed energy min

27J

Surface Treatment

Black

Code

Black

Description

Oily surface, black

Thickness

Appearance

Black

NSSWhiteRust

NSSRedRust

Product Description

High strength Bolts DIN7991 Hex Socket Flat Head Cup Screws, Class 10.9/12.9, Grade 8, ANSI, ASME Standard available Stock

Diameter: M2-M24

Length: 6-200 mm

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