Socket Head Screws

These alloy steel screws are more robust than Grade 8 steel screws, with a tensile strength of 170,000 psi.

In dry environments black-oxide steel screws exhibit a moderate level of resistance to corrosion. In damp conditions, zinc-plated steel screws do not corrode. It is simple to identify the screws that have a blue dye finish. Zinc-flake-coated steel screws are on par with Dacromet-coated screws and 20 times more corrosion-resistant than zinc-plated screws.

If you are unsure of the pitch or threads per inch, go with screws with coarse threads, which are the industry norm. Close spacing between fine and extra-fine threads keeps them from loosening due to vibration; the finer the thread, the better the resistance.ASTM A574, ASTM A574M, and ISO 898-1-compliant screws adhere to material quality standards and testing requirements. Dimensional standards are met by screws that adhere to ASME B18.3, ASME B18.3.1M, ISO 21269, and ISO 4762 (previously DIN 912). 

Turn these screws to the left to tighten them; once tight, they stop pieces that move counterclockwise from loosening. These alloy steel screws are more robust than Grade 8 steel screws, with a tensile strength of 170,000 psi. In arid conditions, their black-oxide coating offers a moderate level of corrosion protection. Under the head, the length is measured. If you are unsure of the pitch or threads per inch, go with screws with coarse threads, which are the industry norm. Screws that adhere to ISO 4762 (formerly DIN 912) standards meet dimensional requirements.  

These screws are prepared to be used on chambers and parts in high-vacuum systems after being cleaned and double-bagged in an ISO Class 5 (Fed. Std. Class 100) clean room. Because 18-8 (SS 304) stainless steel releases gas more slowly than other metals, your system can attain higher vacuum levels. Over time, wear is decreased by the lubricating effect of silver plating on screws. Under the head, the length is measured. 

These are our strongest stainless steel screws and are frequently used to secure items in engines and turbines. They have the corrosion resistance of 18-8 stainless steel and strength comparable to alloy steel. Screws don't conduct electricity. Under the head, the length is measured. If you are unsure of the pitch or threads per inch, go with screws with coarse threads, which are the industry norm.Screws that adhere to ISO 4762 (formerly DIN 912) and Fed. Spec. FF-S-86 meet dimensional standards requirements. 

These screws are electrically conductive, nonmagnetic, and resistant to corrosion in damp conditions. Under the head, the length is measured. If you are unsure of the pitch or threads per inch, go with screws with coarse threads, which are the industry norm. Strict dimensional requirements are met by screws that adhere to DIN 912 or ISO 4762. 

These screws, which are made of stainless steel, may be slightly magnetic and have good chemical resistance. Under the head, the length is measured. The finish of black-oxide stainless steel screws is matte-black. A2 stainless steel screws are another name for SS304 screws. A4 stainless steel screws are another name for SS316 screws. If you are unsure of the pitch or threads per inch, go with screws with coarse threads, which are the industry norm. Close spacing between fine threads keeps them from loosening due to vibration. Coarse threads are incompatible with them. Dimensional specifications are met by screws that adhere to ASME B1.1, ASME B18.3, ISO 21269, and ISO 4762 (previously DIN 912). 

These screws are lightweight, nonconductive, and resistant to chemicals and oils. Under the head, the length is measured. When nylon screws are exposed to moisture, they may expand. Glass-filled nylon screws are twice as robust as regular nylon screws because they are strengthened with fiberglass. Compared to nylon screws, polypropylene screws are more resistant to alkali, acids, and grease. They won't absorb moisture like nylon does. Plastic screws can tolerate temperatures as high as 500° F and are twice as robust as regular nylon screws. Compared to polypropylene screws, they are more chemically resistant. If you are unsure of the pitch or threads per inch, go with screws with coarse threads, which are the industry norm. 

Aluminum screws exhibit superior corrosion resistance and are one-third the weight of steel. Under the head, the length is measured.

It is simple to identify screws that have a blue anodized finish. If you are unsure of the threads per inch, go with screws with coarse threads, which are the industry norm. 

Titanium screws, our most corrosion-resistant metal screws, can tolerate chemicals, sea water, and acids. They are roughly 40% lighter than steel screws and have a great strength-to-weight ratio. All of them satisfy the dimensional requirements of ISO 4762 (previously DIN 912) or ASME B18.3. Under the head, the length is measured. If you are unsure of the threads per inch, go with screws with coarse threads, which are the industry norm. 

Nickel alloy screws exhibit superior resistance to sea water and some acids, making them more corrosion-resistant than stainless steel screws. The material is similar to Monel. They might have a slight magnetic field. Under the head, the length is measured. If you are unsure of the threads per inch, go with screws with coarse threads, which are the industry norm. 

These low-profile screws are almost twice as robust as their stainless steel equivalents since they are made of alloy steel. These low-profile screws are weaker than regular socket heads yet fit in tiny areas since they are half as tall. Under the head, the length is measured. In arid conditions, black-oxide steel screws exhibit a moderate level of resistance to corrosion. Zinc-plated steel screws feature an exterior layer of zinc that prevents rust and prolongs the screw's life. Medium-strength class 8.8 steel screws are robust enough to be used with the majority of machinery and equipment. Compared to Class 8.8, Class 10.9 steel screws are at least 25% stronger. Use them in high-stress areas like vehicle suspensions, pumps, and valves. If you are unsure of the pitch or threads per inch, go with screws with coarse threads, which are the industry norm. DIN screws adhere to global standards for dimensions and materials.Use DIN 6911 L-keys to tighten DIN 6912 screws; the expanded tip of the L-keys fits into a recess on the screws. You can install these screws in hard-to-reach places with just one hand thanks to DIN 6911 L-keys, which hold them firmly. Standard L-keys can also be used to insert DIN 6912 screws, although they won't hold the screws as firmly. 

These alloy steel screws have a tensile strength of 170,000 psi, which makes them almost two and a half times stronger than stainless steel thread-locking screws and stronger than Grade 8 steel screws. In arid conditions, their black-oxide coating offers a moderate level of corrosion protection. Friction is added by a nylon patch that is glued to the threads to prevent loosening from vibration. Although screws can be reused, each usage reduces their gripping power. Under the head, the length is measured.

If you are unsure of the pitch or threads per inch, go with the industry standard coarse thread screws. ASTM A574-compliant screws adhere to material quality tests and specification requirements. ASME B18.3 and ISO 4762 (formerly DIN 912)-compliant screws adhere to dimensional standards. 

These screws transmit pressure where the screw touches the surface, eliminating the need for a separate washer. They also take up less space than a washer. They are more robust than stainless steel screws since they are made of alloy steel. In arid conditions, their black-oxide coating offers a moderate level of corrosion protection. The flange is included in head height. From beneath the flange, length is measured. If you are unsure of the pitch or threads per inch, go with the industry standard coarse thread screws. 

These screws have a rubber O-ring underneath the head to stop leaks and keep impurities out. The dimensions satisfy ISO 4762 (formerly DIN 912) or ASME B18.3 requirements. Under the head, the length is measured. 18-8 stainless steel screws may be slightly magnetic and have strong corrosion resistance. In addition to having superior resistance to chemicals and sea water, 316 stainless steel screws are more corrosion resistant than 18-8 stainless steel screws. They might have a slight magnetic field. O-ring screws are resistant to abrasive and damp conditions. Screws with an O-ring resist oil and chemicals. Silicone O-ring screws withstand corrosion from saline water and work well in a variety of temperatures. If you are unsure of the pitch or threads per inch, go with the industry standard coarse thread screws. 

Unlike a flange, a freely rotating washer disperses pressure across a larger surface area, protecting the surface of your material. These alloy steel screws are more robust than Grade 8 steel screws, with a tensile strength of 170,000 psi. In arid conditions, their black-oxide coating offers a moderate level of corrosion protection. All are made in accordance with ASTM A574 and some additionally fulfill ASME B18.3 standards for dimensions and material quality. Under the head, the length is measured. If you are unsure of the threads per inch, go with screws with coarse threads, which are the industry norm. 

More than twice as robust as stainless steel wire-lockable screws and stronger than Grade 8 steel screws, the alloy steel screws have a tensile strength of 170,000 psi. In arid conditions, their black-oxide coating offers a moderate level of corrosion protection. Connect these screws via the head's hole for greater vibration resistance than any other socket head screw (wire supplied separately). The dimensions are in accordance with ASME B18.3. Under the head, the length is measured. If you are unsure of the threads per inch, go with screws with coarse threads, which are the industry norm. Close spacing between fine threads keeps them from loosening due to vibration. Coarse threads are incompatible with them.

The nylon tip, which is softer than brass and nonconductive, lessens vibration and prevents harm from metal on metal. Compared to Grade 8 steel screws, alloy steel screws have a tensile strength of 180,000 psi. In arid conditions, their black-oxide coating offers a moderate level of corrosion protection. All satisfy ASTM A574 and ASME B18.3 for material quality and dimensional requirements. If you are unsure of the threads per inch, go with screws with coarse threads, which are the industry norm. Close spacing between fine threads keeps them from loosening due to vibration. Coarse threads are incompatible with them. 

The nonmarring brass tip minimizes damage from metal-on-metal contact and is electrically conductive and supple enough to grasp curved and rough surfaces. Alloy steel screws are stronger than Grade 8 steel screws and have a tensile strength of 180,000 psi. In arid conditions, their black-oxide coating offers a moderate level of corrosion protection. All satisfy ASTM A574 and ASME B18.3 for material quality and dimensional requirements. If you are unsure of the threads per inch, go with screws with coarse threads, which are the industry norm. Close spacing between fine threads keeps them from loosening due to vibration. Coarse threads are incompatible with them. 

These screws are suitable for vacuum applications because they vent fluid and gases trapped beneath them through holes drilled through the head and shaft. Screws are made of 18-8 stainless steel, which is moderately magnetic and has strong chemical resistance. Under the head, the length is measured. If you are unsure of the pitch or threads per inch, go with the industry standard coarse thread screws. 

These alloy steel screws are almost twice as strong as ultra-low profile stainless steel screws. In arid conditions, their black-oxide coating offers a moderate level of corrosion protection. They have a head that is roughly one-third the height of a typical socket head in order to fit in the smallest openings, but their low profile weakens the head. For important fastening applications, it is not advised. Under the head, the length is measured. If you are unsure of the pitch or threads per inch, go with screws with coarse threads, which are the industry norm.