Stainless Steel Screws and Nuts

Phillips Pan Head Self Tapping Screw

Type: Tapping Screws
Matel:Stainless Steel 202,410,A2-70(304),A4-80(316)
Size:M2~M8
Length:3-80mm
The phillips pan head self-tapping screw standardized under DIN and ISO norms such as DIN 7981, ISO 7049, and DIN 7516A—these screws span sizes No. 2 through No. 14 (imperial) and ST 2.2 through ST 4.8 (metric).Pan head phillips self tapping screw are suitable for fastening into timber, plywood, laminates, some plastics, through a pre-drilled pilot hole.

Phillips Head Painted Self Tapping Screws

Material: 304/316 Stainless steel
Dia.: M3-M10
Length: 30-400MM
Standard:DIN7505 or Custom
The painted self tapping screws designed to be used in wood, sheet metal, chipboard, PVC-u and MDF.

Stainless Steel Phillips Flat Head Machine Screws

Material:Stainless Steel 304
Size:M2.5~M12 (6#~1")
Screw diameter:6-100mm(1/4"-4")
The stainless steel flat head machine screws ideal for use in confined areas where the head needs to be flush or below the surface.They are often used in woodworking, cabinetry, electronics assembly, and other areas where a neat, snag-free fastener is needed.

Stainless Steel Hex Socket Head Cap Screw

Material: 304 or 316 stainless steel
Standard:DIN, ISO, ANSI/ASTM etc
Size:M3-M64
Length:6mm-350mm
Grade:A2-70/A4-70
Finish:Polish, Plain
Head Style: Cap screw with a cylindrical head and a hexagonal socket drive (also called an Allen drive).
Drive Type: Requires an Allen wrench (hex key) for installation/removal.
The stainless steel hex socket head cap screw ideal for outdoor, marine, or food-grade applications.

Phillips Truss Head Self Tapping Screws

Material:304/316 SS
Size:M2.5-M8
Standard:DIN, GB, ISO, JIS, BA, ANSI, Non-standard
Grade:4.8, 6.8, 8.8, 10.9, 12.9, etc. As requested
Their self-tapping feature allows them to cut their own threads into materials such as metal, plastic, and wood, making them ideal for use in construction, automotive, electronics, and furniture assembly.

Knurled Hand Tighten Thumb Screw for Computer

Materials: stainless steel,steel
Customizable Finishes: The knurled screws is available in a variety of finishes, including black, zinc, plain, black oxide, zinc plated, and silver plated, allowing users to choose the perfect finish to suit their specific needs.
Standard: The knurled screws meets the ISO standard, ensuring it adheres to international quality and safety standards.
Application: This knurled hand tighten thumb screw is suitable for use in various industries, including computer and electronics, and can be used with VGA ports, as mentioned in the keywords.
User-Friendly Design: The knurled hand tighten thumb screw provides a comfortable grip, making it easy to tighten and loosen, as requested by our valued customer, "user".

304/316 Stainless Steel Knurled Thumb Screws

Material:304/316 Stainless Steel
Size:M2~M8（Customizable）
Standard: ISO, GB, JIS, DIN, BS, ANSI and corporate standards (customers providing drawings)
Stainless steel knurled thumb screws are widely used in applications that require frequent manual adjustments without the need for tools. Their textured, knurled heads provide a secure grip, making them ideal for equipment panels, electronics enclosures, machinery covers, and furniture assemblies.

#4-40 Knurled Thumb Screws Stainless Steel

Head Type: Flat head
Shank Diameter:M4,M5,M6,M8,M10
Length:5mm~200mm
The knurled thumb screws are commonly found in computers, furniture, drawers, cabinets, flight equipment, and electrical devices, offering secure fastening without the need for tools. Their corrosion resistance and precise grip make them ideal for both industrial and everyday use.

Hex Head Self Drilling Screw

Material:Steel,Stainless steel
Diameter:M3.5(#6)/M3.9(#7)/M4.2(#8)/M4.8(#10)/M5.5(#12)/M6.3(#14)
Length:From 9.5mm(3/8'') to 127mm(5'')
Standard:DIN, ISO, ANSI/ASTM, BS, BSW, JIS etc
Hex head self drilling metal screws are widely used in applications like sheet metal fabrication, building construction, and roofing projects.

Hexagon Socket Countersunk Pan Head Stainless Steel Machine Screw

Material:Stainless steel : 303, 304, 316, 412,201,202 etc
Size:M2 ~ M25(Customized)
Compliant with DIN Standard: The screws meet the DIN standard, ensuring compatibility with various machinery and equipment.
Hexagon socket countersunk pan head stainless steel machine screws are widely used across a variety of industries, including electronics, automotive, electrical appliances, electric machinery, toys, medical equipment, spare metal parts, loudspeaker enclosures, furniture, and fitness equipment.

Stainless Steel Socket Head Cap Screw

Material:SS201, SS303, SS304, SS316, SS410, SS420, 422 etc
Size:M1,M1.6,M2,M2.5,M3,M4,M5,M6,M7,M8,T5,T6,T7,T8,T15,T27
Standard:ISO, GB, DIN, JIS, ANSI/ASME, BSW, Non-standard. Or base on the Drawings or Samples
The stainless steel socket head cap screw suitable for a variety of industries, including automotive, machinery, electronics, and construction, for securing components where a neat, low-profile appearance is desired.

#12 x 1-1/2" Stainless Steel Sheet Metal Screws

Material:316 stainless steel
Size:#8,#10,#12,#14
The stainless steel sheet metal screws have sharp threads that cut into a material such as sheet metal, plastic or wood. They also make excellent fasteners for attaching metal hardware to wood because the fully threaded shank provides good retention in wood.

Stainless Steel Slotted Hammer Barrel Nut

stainless steel slotted hammer barrel nut used in furniture assembly and woodworking to create strong and concealed joints between two pieces of wood or board.

DIN913 M2 M2.5 M3 M4 M5 304 Stainless Steel Headless Hex Socket Set Screw

The set screw are headless screws that are fully threaded with a recessed internal socket drive to add strength. Used for fastening in confined areas where the head must be below or flush with the surface, they can be fastened with an Allen key.
Material:Stainless Steel 304
Standard:DIN913
Size:M1 to M16
Length:Customized to your requirements
Drive type:Hex Drive

Stainless Steel Lag Screws

stainless steel lag screw (sometimes called a lag bolt or coach screw) is a heavy-duty fastener made from stainless steel, designed for securely joining wood or other materials, especially in applications bearing significant weight.
Sizes: Available in a range of diameters (1/4", 5/16", 3/8", 1/2") and lengths to suit different project requirements.

Stainless Steel Button Head Torx Screws

The hexalobular internal design of the stainless steel button head torx screws are tamper resistant. Can withstand high torque force. The applications of the head torx screws can be seen in various applications such as bicycle brakes, computers, cars and other tamper resistant instances.
Size:M2 - M100
Diameter:M3-M60
Length:6mm-500mm
Standard:ISO 4017, DIN931, GB5783, DIN, ASTM, ANSI, JIS, EN, AS.

Stainless Steel Black Screws

The Black Oxide coating of a screws provides corrosion and abrasion resistance.
Material:Stainless Steel/Carbon Steel
Size:ST2.2 - ST6.3
Length:4 - 150mm
Stainless steel black screws are versatile fasteners commonly used in a variety of applications, including woodworking, machinery, metalworking, construction, furniture assembly, building projects, and electronics.

Stainless Steel Hex Flange Nuts

The stainless steel nuts features a serrated hex flange design for improved grip and secure fastening, suitable for heavy-duty applications in industries such as construction and manufacturing.
Size:M5 - M20 or customized
Material:Carbon Steel /SS304/SS316

Stainless Steel Hex Nylon Insert Lock Nuts

The stainless steel hex nylon insert lock nuts features a self-locking mechanism with a nylon rubber ring, providing anti-removal, anti-skid, and anti-loose properties, making it an ideal choice for applications where security and stability are paramount.The nuts meets the DIN985 standard and is available in various sizes, including M2, M2.5, M3, M4, M5, M6, M8, M10, and M12, catering to diverse customer needs and can be customized to meet specific customer requirements.

Stainless Steel Acorn Nuts

Material:Stainless Steel 202,410,A2-70(304),A4-80(316)
Standard:DIN 1587
Diameter:M3-M30,1/4"-1/2"
stainless steel acorn nuts (also known as cap nuts or domed cap nuts) are a type of fastener with a domed top that covers the exposed threaded end of a bolt or screw. This provides both a finished look and added protection from environmental elements, debris, or accidental contact.stainless steel dome nuts are commonly used in applications, such as in automotive parts, furniture assembly, machinery, and outdoor or marine structures.

Zinc Plated Stainless Steel Knurled Rivet Nut

Material:Stainlesss Steel,Carbon Steel
Size:M3-M20(Customized)
Standard:DIN GB ISO JIS BA ANSI
Finish:zinc plated, passivated
Non-standards:OEM is available, according to drawing or samples
The stainless steel knurled rivet nut are suitable for a broad range of industries, including healthcare, retail, general industry, oil & gas, and automotive.

304 / 316 Stainless Steel Butterfly Wing Nut

Material:Stainless Steel 202,410,A2-70(304),A4-80(316)
Standard:DIN 315
Diameter:M3-M12,5/32"-1/2"
Stainless steel butterfly wing nuts are widely used wherever quick, hand-tightened fastening and frequent adjustments are required. Their corrosion-resistant construction makes them ideal for outdoor equipment, marine hardware, and chemical-processing assemblies, while their ergonomic “wing” design allows operators to secure panels, guards or fixtures without tools.

DIN934 Stainless Steel Hex Nuts

Material:Stainless Steel/Carbon steel
Size:M1.6-M64
Standard:DIN934
The stainless steel hex nuts is to fasten parts together, typically in conjunction with a bolt or screw. Its hexagonal shape allows for easy tightening and loosening with standard tools like wrenches. Hexagon nuts are widely used in construction, machinery, automotive applications, and various DIY projects to create secure and reliable connections.

DIN986 Stainless Steel Hexagon Nylon Insert Lock Nut

Material:Stainless Steel,Alloy,Carbon Steel
Size:M4-M30,or non-standard as request&design
Standard:DIN
Surface treatment:Zinc Plated,HDG,Dacromet,Nickel Plated,Black Oxide,Plain
The nuts are called nylon insert lock nuts or nyloc nuts. Their purpose, in English, is to provide a secure fastening that resists loosening due to vibration and torque. The nylon insert within the nut grips the threads of the mating bolt, creating friction that prevents the nut from backing off. Nyloc nuts are commonly used in applications where maintaining a tight connection is crucial, such as in automotive, machinery, and furniture assembly. The different colored nylon inserts might indicate variations in size or material grade.

Four Claws Speaker Nut

The nuts have a cylindrical shape with internal threads and a flange at one end. The flange has four protruding prongs or claws that help secure the nut into the material.
The four-claw nut are used in various applications where a strong, internal thread is needed in a wooden or composite material. Common uses include furniture assembly, securing components in woodworking projects.
The four claws nut are widely available in various sizes to accommodate different bolt or screw sizes.

Stainless Steel Oval Head Machine Screw

The stainless steel oval head machine screw commonly used in mechanical assemblies, electronics, and construction. It features a slightly domed, countersunk head and a machine thread, allowing it to be used with pre-threaded holes or nuts. The oval head provides a clean, finished look while maintaining a flush fit, making it ideal for both functional and aesthetic applications.

Diameter (Imperial)	Diameter (Metric)	Common Lengths	Thread Pitch (Metric)	Thread Count (Imperial)
#4	M3	1/4"–2"	0.5 mm	40 TPI
#6	M3.5	1/4"–2.5"	0.6 mm	32 TPI
#8	M4	1/4"–3"	0.7 mm	32 TPI
#10	M5	3/8"–3"	0.8 mm	24 TPI
1/4"	M6	1/2"–4"	1.0 mm	20 TPI

Applications

Stainless steel screws and nuts are commonly used in applications requiring durability and resistance to corrosion, particularly in construction, marine, and industrial settings. They're also used in home renovations, home improvement, and DIY projects.

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Why JiLiang Stainless Steel Screws and Nuts

Precision and Durability

Our stainless steel screws and nuts are crafted with precision to ensure a tight, secure fit and an aesthetically appealing finish for a wide range of materials and applications.

Custom Manufacturing Capabilities

Our team offers custom solutions to meet your specific project needs, whether that’s unique dimensions, finishes, or bulk orders.

Industry-Leading Expertise

With years of experience in the screws and nuts industry, we offer professional consultation to help you choose the right screws and nuts for your application.

Commitment to Service Excellence

We are dedicated to providing you with fast shipping, excellent customer service, and ongoing support throughout your order process.

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We offer competitive wholesale pricing for bulk orders of Stainless Steel Screws and Nuts. Get custom sizes and specifications tailored to your needs.

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Please carefully inspect the goods before signing for receipt. If there are any issues, contact customer service on the day of delivery. Returns or exchanges are not accepted for non-quality-related issues.

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FAQs

Do stainless steel screws rust

No, stainless steel screws do not typically rust. Their resistance to rust comes from the chromium content in the steel, which reacts with oxygen to form a protective oxide layer. This layer acts as a barrier, preventing rust from forming on the steel. View More

How to tell if a screw is stainless steel

To identify if a screw is stainless steel, check for markings on the head, such as "SS" or "304," and inspect its color, finish, and magnetic properties. Stainless steel typically has a smooth, shiny surface, a fine brushed finish, and is non-magnetic (or weakly magnetic). If a magnet strongly attracts the screw, it's likely not stainless steel. View More

Are stainless steel screws magnetic

No, not all stainless steel screws are magnetic, but some can be. Most common stainless steels, like 304 and 316, are non-magnetic because of their austenite microstructure, which is primarily due to the presence of nickel. However, some martensitic stainless steels, like 410, are magnetic, and cold working processes can sometimes make even austenitic stainless steel slightly magnetic. View More

Can you use stainless steel screws in aluminum

Yes, stainless‑steel screws can be used in aluminum—just protect against galvanic corrosion (sealants, coatings, insulating washers), tap and torque correctly to avoid strip‑out, and pick the right stainless grade for your environment. View More

Can you use stainless steel nuts on galvanized bolts

It is generally not recommended to use stainless steel nuts on galvanized bolts due to the risk of galvanic corrosion. This occurs when two different metals are in contact in a corrosive environment, and one metal corrodes prematurely. View More

Can you use stainless steel screws in treated lumber

Yes, stainless steel screws are generally recommended for use with treated lumber. The chemicals used in treating lumber can cause corrosion in standard steel fasteners, leading to staining and weakening of the structure. Stainless steel is a more durable option, resistant to corrosion, and ensures the long-term integrity of your project. View More

Are stainless steel screws good for exterior

Yes, stainless steel screws are generally very good for exterior applications due to their excellent corrosion resistance. They are particularly well-suited for projects where moisture or harsh environmental conditions are present, as they can withstand rust and prolonged exposure to the elements. View More

Are stainless steel screws heat resistant

Yes, stainless steel screws are generally heat-resistant, but the extent of their heat resistance varies depending on the specific grade of stainless steel. Common grades like 304 and 316 offer good resistance, while higher grades like 309, 310, and 330 are designed for more extreme high-temperature environments. View More

Are stainless steel screws rust proof

Stainless steel screws are highly resistant to rust and corrosion, but they are not entirely rust-proof. Their resistance stems from a protective chromium oxide layer that forms when chromium in the alloy reacts with oxygen. This layer can self-heal if damaged, providing ongoing protection against rust in most environments. View More

Are stainless steel screws stronger than zinc

Yes, generally, stainless steel screws are stronger than zinc-plated screws. Stainless steel has a higher tensile strength, meaning it can withstand more stress and weight before breaking. While galvanized steel (a type of zinc-coated steel) offers good corrosion resistance, its strength is typically lower than stainless steel. View More

Are stainless steel screws waterproof

Yes, stainless steel screws are generally considered to be waterproof and highly resistant to corrosion, including rust. However, the level of resistance can vary depending on the grade of stainless steel, with 316 grade stainless steel being specifically recommended for marine and other harsh environments. Even though stainless steel is naturally corrosion-resistant due to the presence of chromium, it's not completely rust-proof and can be susceptible to corrosion in certain conditions. View More

What are stainless steel screws used for

Stainless steel screws are primarily used in applications requiring durability, corrosion resistance, and long-lasting performance, especially in harsh environments. These screws are commonly found in construction, manufacturing, and various industries due to their ability to withstand exposure to moisture, chemicals, and other corrosive agents. View More

Can you paint stainless steel screws and nuts

Yes, you can paint stainless steel screws and nuts, but it's generally advisable to avoid it if the natural finish of the stainless steel is suitable. Painting can interfere with the steel's ability to repair its protective chromium oxide passive film, which is essential for corrosion resistance. However, if you choose to paint, proper preparation and the use of suitable coatings are crucial. View More

How to blacken stainless steel screws

To blacken stainless steel screws, you can use specialized black oxide solutions or consider painting them with a black paint designed for stainless steel. Alternatively, some methods involve chemical reactions to create a black patina. View More

How to clean stainless steel nuts and bolts

To clean stainless steel nuts and bolts, start by wiping away any loose dirt or debris with a soft cloth. For stubborn stains, you can use a paste of baking soda and water or a mixture of white vinegar and warm water. Finally, polish with a stainless steel polish or olive oil for a shine and added protection. View More

What grade stainless steel nut

The most common grades of stainless steel used for nuts are 304 and 316. 316 is more corrosion-resistant than 304, particularly in marine or other corrosive environments. 304 is a good general-purpose grade, while 316 is often preferred for more demanding applications. View More

How to identify stainless steel nuts

Stainless steel nuts can be identified through visual inspection, the magnet test, and by checking for specific markings. Visually, stainless steel nuts have a smooth, shiny surface with a brushed or polished finish and minimal to no rust or corrosion. Most austenitic stainless steels (like 304 and 316) are non-magnetic, while some martensitic grades (like 410) may be weakly magnetic. Markings on the nut, often including the steel group, property class, and manufacturer's mark, can also indicate if it's stainless steel. View More

Can you use stainless steel screws in aluminum boat

Yes, you can use stainless steel screws in an aluminum boat, but you need to be aware of the risk of galvanic corrosion and take precautions to mitigate it. Stainless steel and aluminum are dissimilar metals, and when they come into contact in a salty environment, they can create a galvanic cell that can cause corrosion of the aluminum. View More

What the difference between 305 and 316 stainless steel screws

316 stainless steel screws offer better corrosion resistance, particularly in harsh environments like marine or those with high chloride exposure, than 305 stainless steel screws. 316 includes molybdenum, enhancing its resistance to pitting and crevice corrosion, while 305, while still corrosion-resistant, is generally used in applications where formability is more important. View More

What's the difference between A2 and A4 stainless steel screws

A2 and A4 stainless steel screws, both belonging to the austenitic stainless steel family, primarily differ in their corrosion resistance and chemical composition. A4, often referred to as "marine grade," contains molybdenum, which significantly enhances its resistance to pitting and general corrosion, especially in chloride-rich environments like seawater, making it suitable for more demanding applications. A2 is suitable for many general-purpose applications where high corrosion resistance isn't as crucial. View More

Are stainless steel screws strong

Yes, stainless steel screws can be very strong, and they are often stronger than galvanized screws, especially in certain applications. While stainless steel is generally known for its corrosion resistance, its strength also depends on the specific grade and how it's been treated. View More

Are sheet metal screws stainless steel

Yes, many sheet metal screws are made from stainless steel, particularly types like 18-8 and 316. These stainless steel options offer excellent corrosion resistance, making them suitable for harsh environments or applications where rust is a concern. They are commonly used for fastening sheet metal, but also wood and plastic. View More