Products Description

Stainless steel single ended screws are mainly made of stainless steel material with a single-ended thread. The screw is cylindrical in shape, with one end precisely machined with continuous threads, and the tooth type, pitch and lead of the threads strictly follow the corresponding standards to ensure the precise fit with supporting parts such as nuts.

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Parameter

Name	Stainless steel single head screw
Material	304, 316 stainless steel
Grade	A2-70,A4-70
Nominal diameter	M2-M48
Pitch	0.4-5
Surface treatment	passivated, polished
Alias	Single head bolts

Product Applications

Pipe Flange Connection

Used to fix flange gaskets. One end is screwed into the flange threaded hole, and the other end is locked with a nut.

Chemical & Marine Equipment

316 / duplex steel features excellent corrosion resistance, widely applied in pumps, valves, reaction kettles and marine fasteners.

Construction & Curtain Wall

Stainless steel single-end studs are applicable for embedded parts and structural fixing.

Mechanical Assembly

Used as positioning pins or support studs to fasten components with matching nuts.

Automotive & Rail Transit

Serves as connecting parts in high-temperature and corrosive environments.

Our Products

why choose us

why choose our products

Stainless steel single-head studs are a basic yet essential industrial fastener, particularly suitable for applications requiring rust resistance, durability, and a clean appearance. When selecting these studs, it is important to consider the material, strength, thread specifications, and environmental factors. If you have specific application requirements or need drawings, please contact us.

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FAQ

01.What is the difference between single-end studs and double-end studs?

A single-end stud is threaded only on one end, while the other end is flat or chamfered. A double-end stud is threaded on both ends. Single-end studs are ideal for applications where one end is fixed by welding or screwing into a threaded hole, and the other end is secured with a nut. Double-end studs are used for connections requiring nuts at both ends, such as flange joints.

02.How to choose between 304 and 316 stainless steel?

304 stainless steel is adequate for general indoor environments and applications without exposure to corrosive fluids. For coastal areas, chemical plants, water treatment facilities, and locations exposed to salt spray, 316 stainless steel is recommended due to its superior corrosion resistance.

03.What do A2-70 and A4-80 mean?

A2 corresponds to 304 stainless steel, and A4 corresponds to 316 stainless steel. The suffix numbers 70 and 80 indicate the tensile strength: 70 represents 700 MPa and 80 represents 800 MPa. A4-80 features higher mechanical strength and better corrosion resistance.

04.How to avoid galling when tightening stainless steel studs?

Friction between stainless steel components generates heat and causes metal adhesion, commonly known as galling or seizing. Apply anti-seize lubricant during installation and tighten slowly at a low speed. It is also recommended to use dissimilar material combinations, such as 316 studs paired with 304 nuts.

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