PTFE Galvanized Alloy Steel Hex Head Bolt High Strength With Surface Treatment

Brand Name:HT

Certification:ISO9001

Model Number:PTFE galvanized Alloy Steel fasteners hex bolt hex nut flat washer

Minimum Order Quantity:1 set

Delivery Time:30-35 work days

Payment Terms:L/C,T/T, Western Union

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Zhengzhou Huitong Pipeline Equipment Co.,Ltd.

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Location: Zhengzhou Henan China

Address: Room 1703, 17th Floor, Building 5, Jinyin Modern City, Guangdian South Road, Jinshui District, Zhengzhou City, Henan Province, China.

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Product Details Company Profile

Product Details

PTFE galvanized Alloy Steel fasteners hex bolt hex nut flat washer

1. What is the definition of alloy steel bolts?

Alloy steel bolts are made from a high strength steel alloy and are further heat treated. Alloy steel bolts are typically not plated, resulting in a dull black finish. Alloy steel bolts are extremely strong but very brittle.

Our common alloy steel material grade is ASTM A193 B7, B7M, ASTM A320 L7, ASTM A325, for bolts; ASTM A194 2H, 2HM for nuts; ASTM F436 for gaskets.

2. Alloy steel bolt nut washer dimension:

Product Name	Alloy steel Mushroom head Fasteners screws
Available Material	1. STAINLESS STEEL SS201, SS303, SS304, SS316, SS410, SS420 2. CARBON STEEL C45(K1045), C46(K1046),C20 3. IRON 1010, 1035, 1045 4. ALUMINIUM OR ALLOY AL6061, AL6063, AL7075 ETC 5. BRASS H59, H62, COPPER and BRONZE
Grade(Hardness)	4.8, 8.8, 10.9, 12.9
Thread Type	UNC, UNF, UNEF, UNS and UN Series
Surface Treatment	Plain, Zinc-plated, Yellow Zinc-plated, Black Zinc-plated, Brass-plated, Nickel-plated, Trivalent Chromium Plated, Hexvalent Chromium Plated, Cadmium-plated, Geomet, Dacromet, HDG, Nylok, Black-oxide, Phosphatizing, Powder Coating and Electrophoresis
Standard	ISO, DIN, ANSI, JIS, BS and Non-standard as clients' requirements
Certificate	GB/T19001-2008/ISO9001:2008 Match ROHS and Eco-friendly
Size Range	As per customers' requirement
Manufacturing Process	Cold Heading/Tapping/Heat Treatment/Surface Treatment
Sample	Free excluding freight
Lead Time	20-30 days after order confirmed(Reception of Deposit Payment or L/C Original)
Packaging	Normal neutral packaging------PP bag inner, A=A corrugated carton, pallet w/slatted crate

3. The difference between alloy material grade:

Standard / Material grade	C	Mn	P	S	Si	Cr	Mo	Al	V
ASTM A193 B7 (Cr- Mo AISI 4140,4142,4145 )	0.37-0.49	0.65-1.10	0.035 Max	0.04 Max	0.15-0.35	0.75-1.20	0.15-0.25	–	–
ASTM A1193 B7M (Cr- Mo AISI 4140,4142,4145 )	0.37-0.49	0.65-1.10	0.035 Max	0.04 Max	0.15-0.35	0.75-1.20	0.15-0.25	–	–
ASTM A193 B16 (Cr- Mo -V )	0.36-0.47	0.45-0.70	0.035 Max	0.04 Max	0.15-0.35	0.80-1.15	0.50-0.65	0.015Max	0.25-0.35
ASTM A193 B5 (5% Cr AISI 501)	0.10 max	1.00 max	0.040 max	0.030 Max	1.00 Max	0.40 -6.00	0.40 -0.65	–	–
ASTM A320-L7 (Cr- Mo AISI 4140,4142,4145 )	0.38-0.48	0.75-1.00	0.035 Max	0.04 Max	0.15-0.35	0.80-1.10	0.15-0.25	–	–
ASTM A 320 L7M	0.38-0.48	0.75-1.00	0.035 Max	0.04 Max	0.15-0.35	0.80-1.10	0.15-0.25	–	–
ASTM A194 Gr.2H	0.40 Min	1.00 Max	0.040 Max	0.050 Max	0.40 Max	–	–	–	–
ASTM A194 Gr.2HM	0.40 Min	1.00 Max	0.040 Max	0.050 Max	0.40 Max	–	–	–	–
ASTM A194 Gr.4	0.40-0.50	0.70-0.90	0.035 Max	0.04 Max	0.15 – 0.35	0.20 – 0.30	–	–	–

4. Alloy steel bolt nut washer common surface treatment:

Nature
Black
Hot galvanizing
Cold galvanizing/ electrogalvanizing
Cadium plate
Zinc-Nickel plate
PTFE coat

Company Profile

Huitong Group was established in 1978. After 38 years'development and innovation,by now,Huitong Group has set up multiple subsidiary companies.Among them,Zhengzhou Huitong Pipe Fitting Co.,Ltd.,with the indepent right of import and export, is mainly engaged in exporting steel pipe and pipe fittings for Huitong Group and assisting another subsidiary company of Huitong Group:Zhengzhou Huitong Machanical Equipment Co.,Ltd., in exporting machanical equipment.

Zhengzhou Huitong Pipeline Equipment Co.,Ltd.,with the strong support of Huitong Group,and years'development and innovation, are more and more professional in technical service and can manufacure products with all kinds of material,shape and size. Especially in elbows, tee, reducer, flange and pipe cap etc., we have gained more than 20 product patent, and hundreds of technology patent. Also,we have gradually taken an ireplacable role in High-pressure,high-temperature and anti-corrosion area. With the continuous construction of engery in China,such as petrol gas,electric power,etc.,our company has become the purchasing center of whole set fittings for such projects.In 2009,a foreign trade team established,is manily engaged in oil gas and electric power projects abroad.By now, our products have been exported to

Canada,Malaysia,Parkistan,UAE, Eygpt,the Middle East countries, etc.. We have passed the qualification of ISO9001:2000 and API quality certification system. High-quality products and high-class service are well received by abroad customers in this industry. The unique diversified production line can offer you one-package serive, you can pruchase all complex products from us at one time. What's more, our sufficient material stock and conventional product stock can ensure you receive satisfied product in the shortest time.

With powerful financial strength,advanced managerial concept, excellent marketing service,strict quality control system and integrated marketing team,we would like to develop together with you hand in hand. Adhering to the operation principle of "faith first and clients foremost", we always supply high quality products, complete after-sales service and favorable prices. We sincerely hope to establish long-term cooperation with you on the basis of mutual benefits, reciprocity and common development.