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NXF UNS S13800 13-8MO Diameter M8-48 Length 35-240mm Plain Finish Special Stainless Steel Standard Thread Hex Bolts and Nuts
2026-03-30 18:24 NXF-GROUP
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Product Description
13-8MO Introduction
13-8MO Introduction
Stainless steel grade 13-8 Mo has a high toughness and excellent resistance to stress corrosion cracking. It has been designed to handle applications where high strength, corrosion resistance, toughness, and stress resistance are essential. This is a martensitic alloy.
13-8MO Chemical Composition
13-8MO Chemical Composition
Grade 13-8 stainless steel is a high-strength, precipitation-hardening martensitic alloy known for superior toughness, corrosionmresistance, and excellent transverse properties. It typically contains 12.25-13.25% Chromium, 7.5-8.5% Nickel, and 2.0-2.5% Molybdenum, often used in aerospace, nuclear, and petrochemical applications.
Introduction to common type of Hex Bolts and Nuts
Introduction to common type of Hex Bolts and Nuts
Bolts are one of the most versatile structural fasteners, available in a vast array of configurations to suit different materials and strength requirements. These fasteners differ primarily in thread specification, length, and head shape, with varying combinations of these characteristics resulting in bolts with different functions. They typically require a drilled hole and a complementary nut, or tapped mating part for installation, and, unlike screws, they are generally not tapered.
Hex bolts and nuts are essential, high-strength threaded fasteners featuring a six-sided head, designed for heavy-duty applications in construction, machinery, and automotive industries. They pair together—the bolt (external thread) with the nut (internal thread)—to secure components via tightened wrenching, often featuring partially threaded shanks for increased shear strength.
Hex Bolts and Nuts Drawing
13-8 Mo of Chemical Composition and Mechanical Properties
Our advantage as follow:
1.We have our own factory, and we can control the cost by producing by ourselves. We have a great advantage in price and can giveyou the lowest price.
2. We can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality.
3. Our biggest advantage is 3S service. Small quantity, short time, special materials.
4.We have excellent quality certificate system and trademark certificate
3. Our biggest advantage is 3S service. Small quantity, short time, special materials.
4.We have excellent quality certificate system and trademark certificate
Product processing
Hex bolts and nuts are manufactured primarily through cold forming (or heading) for high efficiency and precision, or hot forging for larger sizes. The process involves shaping metal wire or rod, threading, heat treatment for strength, and surface coating for corrosion resistance
Manufacturing Process for Hex Bolts (Cold Heading)
1. Wire Drawing & Heading: Coiled steel wire is drawn to the correct diameter and fed into a cold header. The wire is cut, then subjected to high-pressure punches to form the shank and the hexagonal head shape.
2. Trimming: The forged head is trimmed to achieve the final precise hexagonal shape.
3. Thread Rolling: Threads are formed by passing the bolt blank through flat or cylindrical dies, which roll the threads rather than cutting them. This process makes the thread stronger.
4. Heat Treatment: The bolts are heated in a furnace and then quenched and tempered to enhance hardness and strength (e.g., Grade 8.8 or 10.9).
5. Finishing: Bolts are cleaned (pickling) and coated with finishes such as zinc plating or hot-dip galvanizing to provide corrosion resistance.
2. Trimming: The forged head is trimmed to achieve the final precise hexagonal shape.
3. Thread Rolling: Threads are formed by passing the bolt blank through flat or cylindrical dies, which roll the threads rather than cutting them. This process makes the thread stronger.
4. Heat Treatment: The bolts are heated in a furnace and then quenched and tempered to enhance hardness and strength (e.g., Grade 8.8 or 10.9).
5. Finishing: Bolts are cleaned (pickling) and coated with finishes such as zinc plating or hot-dip galvanizing to provide corrosion resistance.
Manufacturing Process for Hex Nuts
1. Cold Forming/Heading: Similar to bolts, nuts are formed from wire in multi-station cold heading machines. This process creates the nut blank, including punching the center hole.
2. Tapping: A tapping machine cuts threads into the internal diameter of the nut.
3. Heat Treatment & Finishing: Nuts are heat-treated to match the strength requirements of the bolts and are often plated or galvanized to prevent corrosion.
1. Cold Forming/Heading: Similar to bolts, nuts are formed from wire in multi-station cold heading machines. This process creates the nut blank, including punching the center hole.
2. Tapping: A tapping machine cuts threads into the internal diameter of the nut.
3. Heat Treatment & Finishing: Nuts are heat-treated to match the strength requirements of the bolts and are often plated or galvanized to prevent corrosion.
Specification
Packing & Delivery
To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.
Company Profile
New XiFei (SuZhou) Business Co.,Ltd is one of the leading and most respected manufacturers in China. Our products include metals,machinery, containers, construction materials, mechanical products, electrical systems, and medical accessories. Established in1980, XIFEI has been working diligently ever since to embrace the needs of our global customer base.We work to ensure absolutecustomer satisfaction. Our team has dedicated itself to perfecting our three core components, "Service, Management and Craftsmanship." Our advantage as follow: 1.We have our own factory, and we can control the cost by producing by ourselves. We have a great advantage in price and can give you the lowest price. 2. We can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality. 3. Our biggest advantage is 3S service. Small quantity, short time, special materials.
Our advantage:3S Service(Small Quantity/Short Time/Special Material)
Certification
FAQ
1. who are we?
We are based in Jiangsu, China, start from 2021,sell to South Asia(30.00%),Eastern Asia(10.00%),Mid East(10.00%),Eastern
Europe(10.00%),South America(10.00%),Domestic Market(5.00%),North America(5.00%),Northern Europe(5.00%),Central
America(5.00%),Africa(5.00%),Southeast Asia(5.00%). There are total about 101-200 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Pipe,Flange,Steel plate,Pipe fittings,Alloy products
4. why should you buy from us not from other suppliers?
Our advantage:3S Service (Small Quantity/Short Time/Special Material) We have our own factories, quality can be controlled
seriously. We Specialize in manufacturing about 21 years. We have professional testing department and testing equipment.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA；
Accepted Payment Currency:USD,EUR,CAD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A;
Language Spoken:English,Chinese
6. Are you trading company or manufacturer ?
We are manufacturer.
7. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to
quantity.
8. Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but need pay the cost of freight.
9. What is your terms of payment ?
Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
We are based in Jiangsu, China, start from 2021,sell to South Asia(30.00%),Eastern Asia(10.00%),Mid East(10.00%),Eastern
Europe(10.00%),South America(10.00%),Domestic Market(5.00%),North America(5.00%),Northern Europe(5.00%),Central
America(5.00%),Africa(5.00%),Southeast Asia(5.00%). There are total about 101-200 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Pipe,Flange,Steel plate,Pipe fittings,Alloy products
4. why should you buy from us not from other suppliers?
Our advantage:3S Service (Small Quantity/Short Time/Special Material) We have our own factories, quality can be controlled
seriously. We Specialize in manufacturing about 21 years. We have professional testing department and testing equipment.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA；
Accepted Payment Currency:USD,EUR,CAD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A;
Language Spoken:English,Chinese
6. Are you trading company or manufacturer ?
We are manufacturer.
7. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to
quantity.
8. Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but need pay the cost of freight.
9. What is your terms of payment ?
Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
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