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Product name : Stainless Steel Hex Flange Head Bolt Item : MTBLTHFBST material : Stainless Steel Enlarge ImageBack [Next Product] |
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Standard: DIN EN 1662,DIN EN 1665,GB /T 5787;GB/T 5789;GB/T 16674;GB/T 5790-86;GB /T 16674.1;JIS B 1189;IFI-111 Material: SUS301,304,18/8,0Cr18Ni9,X5CrNi1810,X10Cr13,410S21,if you need to use other stainless steel, please let us know. Heat Treatment: None for normal, If you have special hardness requirement, please
let us know. Surface Hardness:220HV is Normal, 750HV max after Quench with SUS410 Finish:None. Head:Hex Flange Tensile strength:700N/mm2 Thread Direction:Normal is right hand/dextrorotation, if you want left hand, please let us know. Refer to document as below: Stainless Steel Hex Flange Head Bolt.pdf Stainless Steel Hex Flange Head Bolt is a flange hex bolt is a bolt that has a washer-like flange cast into
the hexagonal head of the bolt. Designed to be used without the aid
of a flat or locking-style washer, the flange hex bolt is
manufactured to properly displace the torque and clamping force of
the bolt over a wider area than that of a typical hex head bolt.
Used a great deal in the automobile industry, the flange hex bolt
allows assembly line workers to install the fasteners much faster
than a comparable bolt and washer. One advantage the flange hex bolt has over a comparably-sized
non-flanged bolt is its ability to displace the clamping force of
the fastener over a greater range. On soft, aluminum automobile
engine components, the use of a standard hex head bolt could
potentially crack and damage the area surrounding the bolt head.
With a flange hex bolt, the clamping force is displaced onto a
greater area underneath the bolt head, thus saving the aluminum
components. Valve covers, intake manifolds and water pumps are some
of the aluminum components that often employ a flanged bolt head as
a fastener. Other components of the automobile that benefit from
the use of the flange hex bolt are the steering box, steering
column and transmission."Stainless Steel" - With the addition of 12% chromium to iron,
stainless steel is formed. The chromium protects the iron against
most corrosion or red colored rust; thus the term "stainless
steel". The ability of stainless to form a thin layer of protection
on its outside surface, called a "passive film", is its most
important characteristic in preventing corrosion. "18-8" - 300 series stainless steel having approximately (not
exactly) 18% chromium and 8% nickel. The term "18-8" is used
interchangeably to characterize fasteners made of
302,302HQ,303,304,384, XM7, and other variables of these grades
with close chemical compositions. There is little overall
difference in corrosion resistance among the 18-8 types, but slight
differences in chemical composition do make certain grades more
resistant than others against particular chemicals or atmospheres. Austentic - Refers to 300 series stainless, the most popular of the
stainless alloys accounting for 85%-90% of stainless fasteners sold
Named for sir Robert Williams Austen, an English metallurgist,
austentic stainless is a crystal structure formed by heating steel,
chromium, and nickel to a high temperature where it forms the
characteristics of 300 series stainless steel. And below is the common drawing for this kind: |
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