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Email: info@nxf-group.com
Email: Andrew@nxf-group.com
Email: Alice@nxf-group.com
NXF UNS S31603 316/0Cr17Ni12Mo2/1.4401 Stainless Steel 316L M2-M30 316L Stainless Steel Flat Head Hexagon Socket Head Screw Bolt
Grade 316L, the low carbon version of 316 and is immune from sensitization (grain boundary carbide precipitation). Thus it is extensively used in heavy gauge welded components (over about 6mm). There is commonly no appreciable price difference between 316 and 316L stainless steel.
The austenitic structure also gives these grades excellent toughness, even down to cryogenic temperatures.
Compared to chromium-nickel austenitic stainless steels, 316L stainless steel offers higher creep, stress to rupture and tensile strength at elevated temperatures.
316L Flat Head Hexagon Socket Head Screw Bolt Introduce
Manufactured in compliance with ISO 7380 standards, these fasteners are available in carbon steel, alloy steel, 304 and 316 stainless steel. Multiple surface treatments such as black oxide, zinc plating and passivation can be provided to enhance corrosion resistance and mechanical performance. Compared with external hexagon fasteners, their compact head avoids interference after installation and delivers neat appearance.
A full range of thread diameters and lengths is supplied with precise thread tolerance, offering reliable clamping force and good anti-loosening performance under vibration. Commonly used for thin plate connection, cabinet assembly and fixture fitting, they suit compact structural designs. Suitable for mass industrial procurement and customized specifications, these screws are trusted connecting components in engineering machinery, electronic equipment and new energy industries.
316L Flat Head Hexagon Socket Head Screw Bolt Product Processing
1. Raw material pre-treatment: Select special steel wires such as carbon steel and stainless steel. Through drawing and annealing processes, adjust the diameter and hardness of the wire to eliminate internal stress of the material, enhance plasticity, and prevent cracking during subsequent forming, laying a foundation for precise processing.
2. Cold heading forming: Send the pre-treated wire to the cold heading equipment for one-time extrusion to form the flat circular head and the shaft of the screw, and punch out precise internal hexagon holes to ensure a smooth head appearance and regular hole positions, making it suitable for standard hexagonal wrenches.
3. Thread rolling: Use a precision thread rolling machine to roll the threads. Different from cutting processing, it can retain the integrity of metal fibers, making the thread pattern uniform and the fit tight, significantly improving the fatigue resistance, anti-loosening and anti-vibration performance of the screws.
4. Heat treatment reinforcement: High-strength screws need to undergo quenching and tempering processes. Precisely control the temperature to effectively enhance the hardness and structural strength of the product, stabilize mechanical properties, and be suitable for various heavy-load and vibration conditions.
5. Surface treatment: According to the material and requirements, perform galvanizing, blackening, passivation and other treatments to remove processing burrs and stains, enhance rust resistance and wear resistance, and improve the durability and appearance quality of the product.
2.Our NXF GROUP can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality,Such as PMI and size testing.
3.Our NXF GROUP biggest advantage is 3S service. Small quantity, short time, special materials.
4.Our NXF GROUP have excellent quality certificate system and trademark certificate
5.Our NXF GROUP have a comprehensive after-sales service guarantee, such as the transaction guarantee provided by Alibaba International Station, as well as remote technical guidance and services.
6.Our NXF GROUP have a well-established logistics support system that can save you both time and money, providing you
with a one-stop service.
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