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Black Oxide Din6921 Hex Serrated Flange Bolts
Black Oxide Din6921 Hex Serrated Flange Bolts
Black Oxide Din6921 Hex Serrated Flange Bolts
Black Oxide Din6921 Hex Serrated Flange Bolts
Black Oxide Din6921 Hex Serrated Flange Bolts
Black Oxide Din6921 Hex Serrated Flange Bolts

Black Oxide Din6921 Hex Serrated Flange Bolts

$0.01≥1000Piece/Pieces

Payment Type:L/C,T/T,D/P,Paypal
Incoterm:FOB,CFR,CIF,EXW,FAS,FCA,CPT,CIP,DDP,DDU,Express Delivery
Min. Order:1000 Piece/Pieces
Transportation:Ocean,Land,Air,Express
Port:Shanghai,Ningbo
Product Attributes

BrandLY

MaterialCarbon Steel

Grade4.8, 8.8, 10.9, 12.9

CoatingBlack Oxide

Packaging & Delivery
Selling Units : Piece/Pieces
Package Type : 1. Bulk packing(Cartons+plastic Bags) 2. Small boxes packing 3. According to the customer's requirements
Picture Example :
Black Oxide Din6921 Hex Serrated Flange Bolts
DIN 6921 Grade A2-70 Hex Flange Bolt
Product Description
DIMENSIONS TABLE


Screw Thread M5 M6 M8 M10 M12 M14 M16 M20
d
P Pitch Coarse thread 0.8 1 1.25 1.5 1.75 2 2 2.5
Fine thread-1 / / 1 1.25 1.5 1.5 1.5 1.5
Fine thread-2 / / / 1 1.25 / / /
b L≤125 16 18 22 26 30 34 38 46
125L≤200 / / 28 32 36 40 44 52
L200 / / / / / / 57 65
c min 1 1.1 1.2 1.5 1.8 2.1 2.4 3
da Form A max 5.7 6.8 9.2 11.2 13.7 15.7 17.7 22.4
Form B max 6.2 7.4 10 12.6 15.2 17.7 20.7 25.7
dc max 11.8 14.2 18 22.3 26.6 30.5 35 43
ds max 5 6 8 10 12 14 16 20
min 4.82 5.82 7.78 9.78 11.73 13.73 15.73 19.67
du max 5.5 6.6 9 11 13.5 15.5 17.5 22
dw min 9.8 12.2 15.8 19.6 23.8 27.6 31.9 39.9
e min 8.71 10.95 14.26 16.5 17.62 19.86 23.15 29.87
f max 1.4 2 2 2 3 3 3 4
k max 5.4 6.6 8.1 9.2 11.5 12.8 14.4 17.1
k1 min 2 2.5 3.2 3.6 4.6 5.1 5.8 6.8
r1 min 0.25 0.4 0.4 0.4 0.6 0.6 0.6 0.8
r2 max 0.3 0.4 0.5 0.6 0.7 0.9 1 1.2
r3 min 0.1 0.1 0.15 0.2 0.25 0.3 0.35 0.4
r4 3 3.4 4.3 4.3 6.4 6.4 6.4 8.5
s max=nominal size 8 10 13 15 16 18 21 27
min 7.78 9.78 12.73 14.73 15.73 17.73 20.67 26.67
t max 0.15 0.2 0.25 0.3 0.35 0.45 0.5 0.65
min 0.05 0.05 0.1 0.15 0.15 0.2 0.25 0.3

From the quality control of incoming raw materials, process control of production lines, and finished product screening control, we ensure that 99% of products meet technical requirements. 
All our products are subjected to strict test and inspection in each process by the workers and QC personnel periodically,starting form the raw ,aterial deliveres to the factory. The products shall be tested and inspected to be qualified before they are passed down to the next process.

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