Befast Co., Ltd.
Befast Co., Ltd.
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Grade 10.9 Hex Flange Bolts

Grade 10.9 hex flange bolts are commonly used in industries like construction, automotive, and machinery, where durability and performance matter the most. They feature a hex flange for added stability during installation.


At Befast, we provide Grade 10.9 Hex Flange Bolts with a superior finish, ensuring corrosion resistance and long-term performance. Our high-strength bolts are manufactured to meet ISO standards and are available in bulk to meet large-scale requirements.


Products

Specifications of Grade 10.9 Hex Flange Bolts

flange bolts and nuts
bolt and flange
NameHex Flange BoltsMaterialsCarbon Steel/Stainless Steel
StandardsDIN ISO ANC BSW JIS etc.Strength level4.8 8.8 10.9 12.9 A2-70 A4-70 A4-80
SizeM3-M50Surface finishZPHDGBLACKDacromet etc.
Length15-500SamplesAvailable


Grade 10.9 Hex Flange Bolts Dimension

Hexagon head flange bolts DIN 6921

Hexagon head flange bolts DIN 6921
Thread specificationM5M6M8M10M12M14M16M20
d
Ppitchcoarse teeth0.811.251.51.75222.5
fine teeth 1//11.251.51.51.51.5
fine teeth 2///11.25///
bL≤125
1618twenty two2630343846
125<L≤200
//283236404452
L>200
//////5765
cminimum
11.11.21.51.82.12.43
d aType Amaximum value5.76.89.211.213.715.717.722.4
Type Bmaximum value6.27.41012.615.217.720.725.7
dcmaximum value
11.814.21822.326.630.53543
dsmaximum value
5681012141620
minimum
4.825.827.789.7811.7313.7315.7319.67
of umaximum value
5.56.691113.515.517.5twenty two
dwminimum
9.812.215.819.623.827.631.939.9
andminimum
8.7110.9514.2616.517.6219.8623.1529.87
fmaximum value
1.42223334
kmaximum value
5.46.68.19.211.512.814.417.1
k 1minimum
22.53.23.64.65.15.86.8
r 1minimum
0.250.40.40.40.60.60.60.8
r 2maximum value
0.30.40.50.60.70.911.2
r 3minimum
0.10.10.150.20.250.30.350.4
r 4
33.44.34.36.46.46.48.5
smax = nominal
81013151618twenty one27
minimum
7.789.7812.7314.7315.7317.7320.6726.67
tmaximum value
0.150.20.250.30.350.450.50.65
minimum
0.050.050.10.150.150.20.250.3
thread length b--------


Benifits of Grade 10.9 Hex Flange Bolts

  • Befast’s Grade 10.9 Hex Flange Bolts are engineered for strength and reliability, making them ideal for demanding environments. With a tensile strength of up to 1040 MPa, these bolts provide excellent load-bearing capacity and are resistant to deformation under heavy stress.

  • Our production process ensures precise dimensions and high-quality material, backed by rigorous quality control. Whether you need to reduce maintenance costs or improve operational efficiency, Befast’s Grade 10.9 Hex Flange Bolts deliver performance you can count on.

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