M5 M8 Carbon steel Galvanized eye Nut Grade8.8 Class 8.8 Customized Zinc Plating
Brand Name:JIA SHAN
Certification:ISO
Model Number:DIN, ASEM, ISO
Minimum Order Quantity:100
Delivery Time:1-5 weekds
Payment Terms:T/T, Western Union
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M5 M8 Carbon steel Galvanized eye Nut Grade8.8 Class 8.8 Customized
Zinc Plating
Product Description:
A wire thread insert (also known as a helical thread insert or coil
insert) is a mechanical component used to repair or reinforce
damaged or worn threaded holes. It is typically made from
high-strength stainless steel wire and features a coiled design
that restores or strengthens the original threads, ensuring that
bolts, screws, or other fasteners can be securely fastened.
Well-known brands of these inserts include Heli-Coil and Time-Sert.
Key Functions:
1. Thread Repair: When a threaded hole becomes stripped or damaged,
a wire thread insert can be inserted to recreate the original
threads, allowing the use of standard fasteners without the need to
replace the entire part.
2. Strengthening Threads: In softer materials, such as aluminum or
plastics, a wire thread insert can provide additional support to
the threads, improving their load-bearing capacity.
3. Preventing Thread Damage: In high-stress applications, wire
inserts help distribute loads more evenly, reducing the likelihood
of thread stripping or loosening.
4. Corrosion Resistance: Inserts made from corrosion-resistant
materials like stainless steel or other alloys offer increased
protection against rust and wear, especially in harsh environments.
Applications:
• Aerospace: Wire thread inserts are widely used in the aviation
and aerospace industries to repair or reinforce threads in critical
components that require precision and reliability.
• Automotive: In the automotive sector, they are commonly employed
to repair or strengthen threads in engine blocks, transmission
housings, and other high-stress parts, particularly those made of
softer metals like aluminum.
• Industrial Equipment: Wire thread inserts are often used in
machinery and equipment to repair damaged threads, enabling the
reuse of components without compromising safety or performance.
• Electronics: In precision electronics, wire inserts ensure that
screws and bolts stay securely fastened, even in delicate or
compact assemblies.
In conclusion, wire thread inserts are a versatile and effective
solution for thread repair and reinforcement in a wide range of
industries, offering cost-effective and durable results for
maintaining threaded connections.
Galvanized carbon steel refers to carbon steel that has been coated
with a layer of zinc through processes such as hot-dip galvanizing
or electroplating. The primary purpose of galvanizing is to enhance
the corrosion resistance of carbon steel and extend its service
life. The benefits and functions of galvanized carbon steel
include:
1. Corrosion Resistance
• The zinc coating forms a protective layer on the steel surface,
which prevents direct contact with moisture, air, and chemicals,
thereby preventing rust and corrosion. Even if the zinc layer is
damaged, zinc protects the exposed steel through sacrificial anode
action, where zinc corrodes preferentially over steel.
2. Weather Resistance
• Galvanized steel performs well in outdoor environments,
especially in harsh conditions like high humidity or coastal areas.
It is resistant to various weather conditions, making it ideal for
applications such as building exteriors, bridges, and
transportation infrastructure.
3. Extended Service Life
• Galvanized carbon steel is far more durable than uncoated steel,
and its corrosion resistance can significantly increase its
lifespan, often by several times, reducing maintenance costs and
the need for frequent replacements.
4. Increased Mechanical Strength
• The zinc layer adds hardness to the surface of the steel,
providing additional wear resistance and mechanical strength. This
is beneficial for applications that require durable, long-lasting
materials.
Steel types:
| No. | C% | Cr% | Ni % | Mo % |
| 304 | 0.07 | 17.5-19.5 | 8.0-10.5 | / |
| 316 | 0.08 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 |
| 301 | 0.15 | 16.0-18.1 | 6-8 | / |
| 310 | 0.08 | 24-26 | 19-22 | / |
| 304L | 0.03 | 18-20 | 8-12 | / |
| 316L | 0.03 | 16-18 | 10-14 | 2-3 |
| 321 | 0.08 | 17-19 | 9-12 | / |
201, 304, 316 are austenitic stainless steel, according to the
performance of the non-magnetic, some of the performance of the
weak magnetic because of the smelting of the composition of the
segregation or improper heat treatment leads to the austenite in a
small amount of martensite or ferrite. Austenitic stainless steel
corrosion resistance comes from the formation of chromium oxide
protective layer on the metal surface. When the material
temperature is heated to 450 degrees -900 degrees, the structure
changes, will form chromium carbide along the edge of the crystal
and can not form a protective layer of chromium oxide, thus
reducing the corrosion resistance, this is also known as
‘intergranular corrosion’. As a result, there are 304L and 316L,
the two due to the low carbon content also reduces the
intergranular corrosion. In particular, the higher susceptibility
to intergranular corrosion does not mean that non-low carbon
content is more susceptible to corrosion, in a highly chlorinated
environment, this susceptibility is also higher.
304 stainless steel
304 is a general-purpose stainless steel that is widely used to
make equipment and machine parts that require good all-round
performance (corrosion resistance and formability). In order to
maintain the corrosion resistance inherent in stainless steel, the
steel must contain more than 18% chromium, more than 8% nickel content. 304 stainless steel is a grade of
stainless steel produced according to the American ASTM standard.
A2 stainless steel and A4 stainless steel, A2 is a class of 304
stainless steel, A4 is a class of 316 stainless steel, the main
difference between the two is here, some of the fastener industry
will be 302HQ and 304 referred to as: A2, 316 and 316L (C content
of carbon C is less than 03% of the stainless steel, you can
increase the ‘L’ logo) called A4.
What is the difference between a270 and a470 stainless steel bolts
Nuts are usually used in conjunction with bolts. Hexagonal nuts are
more widely used.C-grade hexagonal nuts are used in steel
structures, machinery and equipment with rough surfaces and low
requirements for precision.A-grade and B-grade hexagonal nuts are
mainly used in machinery and equipment with smooth surfaces and
high requirements for precision.
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M5 M8 Carbon steel Galvanized eye Nut Grade8.8 Class 8.8 Customized Zinc Plating
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