Polypropylene Machine Screw, Binding Head, Slotted Drive, #10-24, 5/8" Length (Pack of 25)

!9#Polypropylene Machine Screw, Binding Head, Slotted Drive, #10-24, 5/8" Length (Pack of 25)

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Post Date : Mar 10, 2012 05:57:04
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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.

Generally used in electrical or radio work, these fasteners are slightly undercut under the head. That provides the ability to bind stranded wire tightly and prevent fraying. 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.

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!9# Stainless Steel 18-8 Machine Screw, 100 Degree Flat Head, Phillips Drive, MIL-SPEC, #10-32, 7/8" Length (Pack of 25)

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Post Date : Mar 07, 2012 05:11:33 | Usually ships in 24 hours

Stainless Steel 18-8 Machine Screw, 100 Degree Flat Head, Phillips Drive, MIL-SPEC, #10-32, 7/8" Length (Pack of 25)

• Machine Screws are often used with nuts or driven into tapped holes
• General Purpose Stainless Steel suitable where formability and cost are important considerations
• Flat head style allows fastener to sit flush to the surface
• Phillips drive is designed to cam out under too much torque
• Fine threads tap better into harder materials and thin walls, and are stronger in tension than coarse threads

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Stainless Steel 18-8 Machine Screw, 100 Degree Flat Head, Phillips Drive, MIL-SPEC, #10-32, 7/8" Length (Pack of 25)

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Zinc Plated Steel Machine Screw, Pan Head, Phillips Drive, M3-0.5, 10mm Length (Pack of 100)

!9# Zinc Plated Steel Machine Screw, Pan Head, Phillips Drive, M3-0.5, 10mm Length (Pack of 100)

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Post Date : Mar 04, 2012 04:27:10 | Usually ships in 24 hours

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.

Steels are designated by a 4 number SAE Steel grade.  The first two digits indicate the primary materials used to form the steel.  The last 2 digits identify the percentage of carbon for the alloy (in hundredths).  The steel used in these fasteners has a tensile strength ranging from 100,000 to 150,000 psi (pounds per square inch).  Zinc Plating helps to prevent corrosion.

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. The Phillips drive style was originally designed so that the driver would slip out under extreme torque, preventing over-tightening and damage to the fastener or the material.

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. 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.

• Machine Screws are often used with nuts or driven into tapped holes
• Zinc Plated Steel fasteners are suitable where strength and corrosion resistance are primary considerations
• Pan head allows for higher tightening torques
• Phillips drive is designed to cam out under too much torque
• Coarse threads are better for brittle materials, and will assemble and disassemble more quickly than fine threads

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