Small Parts Stainless Steel Machine Screw, Flat Head, Slotted Drive, #4-40, 9/16" Length (Pack of 100)

Stainless Steel Machine Screw, Flat Head, Slotted Drive, #4-40, 9/16" Length (Pack of 100) Review

Stainless Steel Machine Screw, Flat Head, Slotted Drive, #4-40, 9/16" Length (Pack of 100) Feature

• Machine Screws are often used with nuts or driven into tapped holes
• Stainless Steel is suitable where formability and cost are important considerations
• Flat head style allows fastener to sit flush to the surface
• Driven by a flat-bladed driver
• Coarse threads are better for brittle materials, and will assemble and disassemble more quickly than fine threads

Stainless Steel Machine Screw, Flat Head, Slotted Drive, #4-40, 9/16" Length (Pack of 100) Overview

Machine Screws, also referred to as Machine Bolts, are often used with nuts or driven into tapped holes. They come in a variety of head types and drive styles, but are generally available in smaller sizes.

Stainless steels are used for their corrosion resistance, high-temperature strength, scaling resistance, and low-temperature toughness.  These properties account for their extremely wide use in practically every industry. Austenitic Stainless Steels are alloys of iron and carbon that contain between 16% and 30% Chromium, a maximum of 0.15% carbon, along with Nickel (or Manganese), and other alloying elements.  The chromium, which helps develop a passive surface oxide film, provides corrosion resistance in stainless steels.   Austenitic Stainless Steels are designated by a 3 digit SAE Stainless Steel Grade beginning with the number 3 (e.g. 304, 316).  Another common naming convention for Austenitic Stainless Steels are 18/8, 18/10, 18/0, etc. where the 18 refers to the % of Chromium and 8 to the % of Nickel contained in the material.    

Flat head fasteners are designed to fit flush to the surface when used with countersunk holes. Length is measured from the top of the head. Common applications for slotted screws include woodworking, although the drive style is not designed to be used with power drivers.

A threaded fastener's size name includes information about the major external diameter, followed by the threads per inch, which indicates if it is coarse or fine. Coarse threads are better when working with brittle materials; they are sturdier and are easier to thread and unthread compared to fine. Coarse threading also allows for thicker coatings and platings.

Small Parts PESF-0440-08-C Polypropylene Machine Screw, Flat Head, Slotted Drive, #4-40, 1/2" Length (Pack of 100)

Polypropylene Machine Screw, Flat Head, Slotted Drive, #4-40, 1/2" Length (Pack of 100) Review

Polypropylene Machine Screw, Flat Head, Slotted Drive, #4-40, 1/2" Length (Pack of 100) Feature

• Machine Screws are often used with nuts or driven into tapped holes
• Polypropylene is suitable for applications where resistance to chemicals and water (including steam) is important
• Flat head style allows fastener to sit flush to the surface
• Driven by a flat-bladed driver
• Coarse threads are better for brittle materials, and will assemble and disassemble more quickly than fine threads

Polypropylene Machine Screw, Flat Head, Slotted Drive, #4-40, 1/2" Length (Pack of 100) Overview

Machine Screws, also referred to as Machine Bolts, are often used with nuts or driven into tapped holes. They come in a variety of head types and drive styles, but are generally available in smaller sizes.

Polypropylene is a thermoplastic which is autoclavable (meaning that it can be sterilized using steam), and is non-hydroscopic (it won't absorb water even after extended periods of contact). Polypropylene has excellent chemical resistance to dilute acids, concentrated acids (except oxidizing acids), alkalis, alcohols, detergents, and water. Polypropylene resists aromatic hydrocarbons, chlorinated hydrocarbons, greases, and oils at room temperature. Maximum operating temperature is 212 degrees Fahrenheit. Polypropylene has a low co-efficient of friction and a high dielectric strength (meaning it operates well as an insulator). Polypropylene has approximately half the tensile strength and impact strength of Nylon 6/6. The tensile strength of Polypropylene is 5000 psi (pounds per square inch). Impact Strength, as measured by the Izod impact test method (which measures force required to break material) is 0.5 pounds per foot.

Flat head fasteners are designed to fit flush to the surface when used with countersunk holes. Length is measured from the top of the head. Common applications for slotted screws include woodworking, although the drive style is not designed to be used with power drivers.

A threaded fastener's size name includes information about the major external diameter, followed by the threads per inch, which indicates if it is coarse or fine. Coarse threads are better when working with brittle materials; they are sturdier and are easier to thread and unthread compared to fine. Coarse threading also allows for thicker coatings and platings.

Antrin Miniature Specialties, Inc. Precision Stainless Steel 303 Machine Screw, Flat Fillister Head, Slotted Drive, NAS, M1-0.25, 0.120" Length (Pack of 25)

Precision Stainless Steel 303 Machine Screw, Flat Fillister Head, Slotted Drive, NAS, M1-0.25, 0.120" Length (Pack of 25) Review

Precision Stainless Steel 303 Machine Screw, Flat Fillister Head, Slotted Drive, NAS, M1-0.25, 0.120" Length (Pack of 25) Feature

• Machined, Precision, Instrument quality machine screws, manufactured to National Aerospace Standards
• Precision, Burr free
• Passivated 303 Stainless Steel Material conforms to AMS-5640 Type 1, ASTM-A-582, MIL-S-7720, QQS763C, QQS764B
• Aerospace Quality
• Medical Quality

Precision Stainless Steel 303 Machine Screw, Flat Fillister Head, Slotted Drive, NAS, M1-0.25, 0.120" Length (Pack of 25) Overview

Machine Screws, also referred to as Machine Bolts, are often used with nuts or driven into tapped holes. They come in a variety of head types and drive styles, but are generally available in smaller sizes.

Stainless steels are used for their corrosion resistance, high-temperature strength, scaling resistance, and low-temperature toughness. These properties account for their extremely wide use in practically every industry. Austenitic Stainless Steels are alloys of iron and carbon that contain between 16% and 30% Chromium, a maximum of 0.15% carbon, along with Nickel (or Manganese), and other alloying elements. The chromium, which helps develop a passive surface oxide film, provides corrosion resistance in stainless steels. Austenitic Stainless Steels are designated by a 3 digit SAE Stainless Steel Grade beginning with the number 3 (e.g. 304, 316).

Stainless Steel 303 contains 0.15% carbon, along with traces of sulfur and phosphorus which makes this a free machining alloy. Free machining refers to the ability to cut and finish the materials without heavy wear on the machining tools. Tensile Strength is 35000 psi (pounds per square inch). Passivation helps prevent corrosion in certain stainless steels by removing surface impurities that can be caused by machining or forming processes. These impurities block the normally occurring formation of a protective oxide coating on the steel.

Fillister head for high torque and good hold-down strength

A threaded fastener's size name includes information about the major external diameter (in millimeters), followed by the thread pitch (millimeters per thread), which indicates if it is coarse or fine. Fine threads are preferable when working with harder materials or when threading into a thin material. They are also stronger in tension than coarse threads, and generally provide higher shear strengths.

Small Parts Brass Machine Screw, Flat Head, Slotted Drive, #6-32, 1" Length (Pack of 100)

Brass Machine Screw, Flat Head, Slotted Drive, #6-32, 1" Length (Pack of 100) Review

Brass Machine Screw, Flat Head, Slotted Drive, #6-32, 1" Length (Pack of 100) Feature

• Machine Screws are often used with nuts or driven into tapped holes
• Brass is suitable where corrosion resistance is a primary consideration
• Flat head style allows fastener to sit flush to the surface
• Driven by a flat-bladed driver
• Coarse threads are better for brittle materials, and will assemble and disassemble more quickly than fine threads

Brass Machine Screw, Flat Head, Slotted Drive, #6-32, 1" Length (Pack of 100) Overview

Machine Screws, also referred to as Machine Bolts, are often used with nuts or driven into tapped holes. They come in a variety of head types and drive styles, but are generally available in smaller sizes.

Brass is rust proof, corrosion resistant and polishes to a rich, golden color. Brass is easily soldered and brazed and accepts plating readily. The typical composition is 70% Copper and 30% Zinc. Strength increases with a higher percentage of Zinc.

Flat head fasteners are designed to fit flush to the surface when used with countersunk holes. Length is measured from the top of the head. Common applications for slotted screws include woodworking, although the drive style is not designed to be used with power drivers.

A threaded fastener's size name includes information about the major external diameter, followed by the threads per inch, which indicates if it is coarse or fine. Coarse threads are better when working with brittle materials; they are sturdier and are easier to thread and unthread compared to fine. Coarse threading also allows for thicker coatings and platings.

Small Parts 010440P025 Nylon 6/6 Machine Screw, Pan Head, Slotted Drive, #4-40, 1/4" Length (Pack of 100)

Nylon 6/6 Machine Screw, Pan Head, Slotted Drive, #4-40, 1/4" Length (Pack of 100) Review

Nylon 6/6 Machine Screw, Pan Head, Slotted Drive, #4-40, 1/4" Length (Pack of 100) Feature

• Machine Screws are often used with nuts or driven into tapped holes
• Nylon 6/6 is suitable where non-conductivity, corrosion resistance, and cost are important considerations
• Pan head allows for higher tightening torques
• Driven by a flat-bladed driver
• Coarse threads are better for brittle materials, and will assemble and disassemble more quickly than fine threads

Nylon 6/6 Machine Screw, Pan Head, Slotted Drive, #4-40, 1/4" Length (Pack of 100) Overview

Machine Screws, also referred to as Machine Bolts, are often used with nuts or driven into tapped holes. They come in a variety of head types and drive styles, but are generally available in smaller sizes.

Nylon 6/6 is a general purpose thermoplastic with outstanding resistance to organic chemicals, acids and alkalis. Nylon wears well against other surfaces; it is readily machinable and may be milled, turned and cut with conventional machine tools. It does exhibit some dimensional swelling in wet applications which should be taken into account with its use. Tensile strength of this material is 12,000 psi (pounds per square inch).

Pan head fasteners have a low, large cylindrical head with a high rounded top edge for higher tightening torques - these fasteners are often recommended to replace older head styles such as round, binding, or truss-head where possible. Common applications for slotted screws include woodworking, although the drive style is not designed to be used with power drivers.

A threaded fastener's size name includes information about the major external diameter, followed by the threads per inch, which indicates if it is coarse or fine. Coarse threads are better when working with brittle materials; they are sturdier and are easier to thread and unthread compared to fine. Coarse threading also allows for thicker coatings and platings.

Small Parts Ceramic Machine Screw, Flat Head, Slotted Drive, #6-32, 1/2" Length (Pack of 1)

Ceramic Machine Screw, Flat Head, Slotted Drive, #6-32, 1/2" Length (Pack of 1) Review

Ceramic Machine Screw, Flat Head, Slotted Drive, #6-32, 1/2" Length (Pack of 1) Feature

• Machine Screws are often used with nuts or driven into tapped holes
• Ceramic is suitable where primary considerations are high temperature and corrosion resistance
• Flat head style allows fastener to sit flush to the surface
• Driven by a flat-bladed driver
• Coarse threads are better for brittle materials, and will assemble and disassemble more quickly than fine threads

Ceramic Machine Screw, Flat Head, Slotted Drive, #6-32, 1/2" Length (Pack of 1) Overview

Machine Screws, also referred to as Machine Bolts, are often used with nuts or driven into tapped holes. They come in a variety of head types and drive styles, but are generally available in smaller sizes.

Ceramic is produced from low pressure injection molded ceramics, utilizing 99.8% fully dense aluminum oxide (Alumina A998). In addition to the outstanding electrical insulation properties of alumina, this material offers unusual resistance to high temperature, corrosion, and abrasion.

Flat head fasteners are designed to fit flush to the surface when used with countersunk holes. Length is measured from the top of the head. Common applications for slotted screws include woodworking, although the drive style is not designed to be used with power drivers.

A threaded fastener's size name includes information about the major external diameter, followed by the threads per inch, which indicates if it is coarse or fine. Coarse threads are better when working with brittle materials; they are sturdier and are easier to thread and unthread compared to fine. Coarse threading also allows for thicker coatings and platings.

Small Parts Brass 330 Machine Screw, Round Head, Slotted Drive, #1-72, 1/8" Length (Pack of 100)

Brass 330 Machine Screw, Round Head, Slotted Drive, #1-72, 1/8" Length (Pack of 100) Review

Brass 330 Machine Screw, Round Head, Slotted Drive, #1-72, 1/8" Length (Pack of 100) Feature

• Machine Screws are often used with nuts or driven into tapped holes
• Brass is suitable where corrosion resistance is a primary consideration
• Round head style for a finished appearance
• Driven by a flat-bladed driver
• Fine threads tap better into harder materials and thin walls, and are stronger in tension than coarse threads

Brass 330 Machine Screw, Round Head, Slotted Drive, #1-72, 1/8" Length (Pack of 100) Overview

Machine Screws, also referred to as Machine Bolts, are often used with nuts or driven into tapped holes. They come in a variety of head types and drive styles, but are generally available in smaller sizes.

Brass is rust proof, corrosion resistant and polishes to a rich, golden color. Brass is easily soldered and brazed and accepts plating readily. The typical composition is 70% Copper and 30% Zinc. Strength increases with a higher percentage of Zinc.

Round head fasteners have a dome-shaped head. An older style of head, it is typically used when replacing existing round-head fasteners where an exact match is desired. Common applications for slotted screws include woodworking, although the drive style is not designed to be used with power drivers.

A threaded fastener's size name includes information about the major external diameter, followed by the threads per inch, which indicates if it is coarse or fine. Fine threads are preferable when working with harder materials or when threading into a thin material. They are also stronger in tension than coarse threads, and generally provide higher shear strengths.