Allen Head Screws Washer Spring Washer Socket Assembling Screws Stainless Steel SS304

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Material：

Steel, S/S

Grade：

A2-70, A4-70, Class 8.8, Class12.9

Specifications：

M2.5×6mm, 10mm(P0.45) M3×5mm-40mm(P0.5) M4×6mm-65mm(P0.7) M5×8mm-70mm(P0.8) M6×10mm-100mm(P1) M8×12mm-90mm(P1.25) M10×16mm-80mm(P1.5) M12×20mm-75mm(P1.75) All 8 Options

Quantity：

Payment Terms：

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Zhongshan Taiming Hardware Co., Ltd.

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Tel：

86-760-22625826

Fax：

86-760-22625830

QQ：

3077145262

Email：

kira@taimingcn.com

Product Details

Basic Info

Thread

M-thread

In-drive

Hex

Ex-drive

Hex chamfered single face

Shank

Full thread

Brand

Taiming

Unit

piece

Material

Steel, S/S

Performance Grade

A2-70, A4-70, Class 8.8, Class12.9

Surface Treatment

Plain, Blue-white zinc, White zinc, Yellow zinc, Phosphated, Black, Nickel, Dacromet, Black zinc, Whitening

Performance Grade

A2-70A4-70Class 8.8Class12.9

Tensile min

700MPa

Yield strength min

450MPa

Tension at break min

0.4dmm

Tensile min

700MPa

Yield strength min

450MPa

Tension at break min

0.4dmm

Tempering temperature min

425℃

Tensile Nom

1000MPa

Tensile min

1000MPa

Yield strength Nom

900MPa

Yield strength min

940MPa

Proof load Nom

830MPa

Elongation after fracture of machined test pieces min

Percentage reduction of area after fracture, Machined test pieces min

48%

Vickers hardness F no less than 38N min

320HV

Vickers hardness F no less than 38N max

380HV

Brinell hardness F=30D^2 min

316HB

Brinell hardness F=30D^2 max

375HB

Rockwell hardness min

39HRC

Rockwell hardness max

44HRC

Surface hardness and Core hardness HV0.3

Hardness decrease of retempering max

20HV

Absorbed energy min

27J

Product Description

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