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NXF UNS S316/DIN1.4401/316/0Cr17Ni12Mo2 Diameter M1.6-20 Grade 4.8-10.9 Length 3-150mm Slotted Countersunk Head Machine Screw
2026-10-08 16:22 NXF GROUP
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Products Description
Stainless Steel 316 Introduction
316 is chrome-nickel austenitic alloy. It also contains molybdenum which increases general corrosion resistance,improves
resistance to pitting from chloride ion solutions, and provides increased strength at high temperatures.316 also provide excellent fabricability and formability. It is also called Marine Grade Stainless Steel.
resistance to pitting from chloride ion solutions, and provides increased strength at high temperatures.316 also provide excellent fabricability and formability. It is also called Marine Grade Stainless Steel.
Slotted Countersunk Head Machine Screw Introduction
Slotted Countersunk Head Machine Screw is a common threaded fastener designed for assembly with pre-tapped nuts or threaded holes.It adopts a countersunk head structure, which can sink fully into the workpiece surface after tightening to achieve a flat and neat surface without protruding parts. The slotted drive allows simple installation and removal using a flat screwdriver, suitable for low-torque assembly scenarios.
Available in multiple material options including carbon steel and stainless steel, these machine screws can be finished with zinc plating, black oxide or other surface treatments to enhance corrosion resistance. Manufactured in accordance with DIN, ISO and ASME standards, they feature precise external thread profile for stable thread matching and reliable clamping force.
This type of machine screw is widely used in electrical equipment, cabinet assembly, instrumentation, furniture and general mechanical assemblies. It is ideal for connections where a flush surface finish and easy manual maintenance are required.
Available in multiple material options including carbon steel and stainless steel, these machine screws can be finished with zinc plating, black oxide or other surface treatments to enhance corrosion resistance. Manufactured in accordance with DIN, ISO and ASME standards, they feature precise external thread profile for stable thread matching and reliable clamping force.
This type of machine screw is widely used in electrical equipment, cabinet assembly, instrumentation, furniture and general mechanical assemblies. It is ideal for connections where a flush surface finish and easy manual maintenance are required.
316 Slotted Countersunk Head Machine Screw Drawing
316 Chemical Composition And Mechanical Properties
Factory and Product Pictures
316 Slotted Countersunk Head Machine Screw Product Pictures
316 PMI spectral testing proves
Video of a customer visiting us
Product processing
316 Slotted Countersunk Head Machine Screw Product Processing
1.Raw Material Inspection & Blanking:
Use qualified stainless steel wire rods complying with fastener standards. Inspect material hardness, surface and metallurgical condition to reject defective stock. Cut wires into fixed‑length blanks for subsequent cold forming.
2.Pretreatment & Cold Heading:
2.Pretreatment & Cold Heading:
Remove oil and oxide layers and apply lubrication. Multi‑station cold heading integrally forms the countersunk head, straight slot and shank, ensuring compact structure and accurate slot dimension for screwdriver fit.
3.Deburring, Shaping & Thread Rolling:
3.Deburring, Shaping & Thread Rolling:
Clear burrs and sharp edges. Calibrate countersunk‑head flatness. Roll precise machine threads with uniform profile to achieve good mating performance with nuts and tapped holes.
4.Heat Treatment & Stress Relief:
4.Heat Treatment & Stress Relief:
Perform quenching and tempering to obtain required hardness and toughness. Release internal stress from forming to avoid thread slipping and screw deformation under service load.
5.Surface Treatment & Inspection:
5.Surface Treatment & Inspection:
Apply zinc plating, black oxide or passivation as required for corrosion resistance. Check dimensions, slot quality, thread accuracy, hardness and appearance for compliance with industrial standards.
6.Sorting, Packaging & Warehousing:
6.Sorting, Packaging & Warehousing:
Automatically sort and count qualified slotted countersunk head machine screws by complete specifications. Adopt dust-proof, moisture-proof and anti-extrusion standardized packaging to protect thread teeth and screw surface from damage and scratches. All finished products are labeled with specification, grade and batch information, classified and stored in standardized warehouses, and delivered after strict final inspection.
Our NXF GROUP advantage as follow
1.Our NXF GROUP 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 based on best quality.
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.
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.
Packing & Delivery
Packing
Delivery
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 absolute customer satisfaction. Our team has dedicated itself to perfecting our three core components, "Service, Management and Craftsmanship." 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:
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:
1.Our NXF GROUP 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 based on best quality.
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.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU；
Accepted Payment Currency:USD,EUR,CAD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,Credit Card,PayPal;
Language Spoken:English,Chinese,Spanish,Russian
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.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU；
Accepted Payment Currency:USD,EUR,CAD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,Credit Card,PayPal;
Language Spoken:English,Chinese,Spanish,Russian
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+8613917160311
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