NBK America LLC Datasheets for Screws

A screw is a wide-encompassing type of hardware fastener that attributes its mechanical capabilities to the helical groove that extends around the circumference of the device's shank. These threads provide the friction and traction that serves a screw's purpose: to assemble or position two workpieces in relation to each other. While used synonymously, screws and bolts are not mechanical clones.


Screws: Learn more

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Product Name Notes
A nickel-copper alloy with resistance to fluorine gas and hydrofluoric acid. Excellent strength compared to pure nickel or copper. Excellent stress corrosion cracking resistance due to chlorine ions. Cleanroom wash...
Compared to SUS304, SUS310S has excellent heat resistance, oxidation resistance, and nitric acid resistance compared to SUS304. Austenitic series stainless steel with high Ni content, which is effective for corrosion...
Hardening the screw surface prevents screw seizing / sticking. Unlike platings or coatings, there is nothing adhering to the surface, eliminating concerns about contamination due to stripping during tightening. Suitable...
Hastelloy C-22 is one of the few metals that is resistant to wet chlorine gas, hypochlorite, and chlorine dioxide. Excellent corrosion resistance against oxidizing and reducing acids and salts.⇒The Properties...
Hastelloy C-276 is a general type of Hastelloy. Excellent corrosion resistance against oxidizing and reducing salts.⇒The Properties of Screws Made of Special Materials Cleanroom wash and cleanroom packing are completed.⇒Cleanroom...
Hexalobular socket shapes*1 are designed to withstand high tightening torque compared to cross-recesses. ⇒Features of the Hexalobular Socket Screw heads are unlikely to be damaged due to tightening, allowing safe...
High intensity stainless steel hex socket head cap screw. Tensile strength 1000 N/mm2, 0.2% proof load 800 N/mm2 The proof load is approximately 1.8 times that of general stainless steel...
M1 - M2.5. Miniature screws for precision instruments.
Our unique processing technology enables screws to meet strength class 12.9 after surface treatment. For applications that require both high strength (Strength Class 12.9) and corrosion resistance.
Screws show excellent corrosion resistance against oxidizing and reducing by inorganic and organic acids.⇒The Properties of Screws Made of Special Materials Excellent resistance to stress corrosion cracking caused by hydrogen...
Socket head cap screws with small head diameters. Able to reduce the spot facing diameters compared to standard socket head cap screws.
Specific gravity is approximately 60% of stainless steel. Nonmagnetic. Excellent chemical and seawater resistance. Chemical polishing and brightening processing improve the screw surface. Furthermore, the screws are cleanroom washed, cleanroom...
Super Invar is a special alloy with an extremely low linear expansion coefficient, and its dimensions change very little due to temperature. For measurement and precision instruments which do not...
SUS316L hex socket head cap screw. Compared to SUS304, SUS316L has excellent hydrogen embrittlement resistance, fluorine and chlorine gas resistance, and heat resistance. This screw also has corrosion resistance against...
These screws are made of aluminum alloy. Specific gravity is approximately 33% of stainless steel. No electrical corrosion is generated from contact with aluminum alloy. Excellent corrosion resistance, electroconductivity, and...
These screws are made of pure molybdenum. Melting Point: 2623 deg C. Excellent heat resistance.
These screws have corrosion resistibility against chemical products and seawater environments that matches or exceeds SUS304. Nonmagnetic. SUS316L is a stainless steel made by adding Mo to SUS304, so it...

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