Plastic Machine Screws | McMaster-Carr

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2,979 Products

Rounded Head Screws

Nylon Pan Head Phillips Screws

Nylon pan head screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Metric Nylon Pan Head Phillips Screws

Made from nylon, these metric pan head screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Metric High-Strength High-Temperature
PEEK Pan Head Phillips Screws

These metric PEEK screws are reliable in harsh environments up to 500° F and withstand acids, bases, and salt solutions. All are chemical and oil resistant, nonconductive, and lightweight.

High-Strength High-Temperature
PEEK Pan Head Phillips Screws

Reliable in harsh environments up to 500° F, PEEK screws withstand acids, bases, and salt solutions. They are chemical and oil resistant, nonconductive, and lightweight.

Impact-Resistant Polycarbonate
Pan Head Phillips Screws

Polycarbonate screws resist breaking in high-impact applications. All are chemical and oil resistant, nonconductive, and lightweight.

Metric Impact-Resistant Polycarbonate
Pan Head Phillips Screws

Made from polycarbonate, these metric pan head screws resist breaking in high-impact applications. They are chemical and oil resistant, nonconductive, and lightweight.

Nylon Pan Head Slotted Screws

Nylon screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Metric Nylon Pan Head Slotted Screws

Made from nylon, these metric screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Extreme-Temperature Chemical-Resistant
PTFE Pan Head Slotted Screws

PTFE screws withstand harsh chemicals and temperatures from -100° F to 500° F. They are nonconductive, lightweight, and resist wear due to their slippery surface.

Metric Extreme-Temperature Chemical-Resistant
PTFE Pan Head Slotted Screws

These metric PTFE screws withstand harsh chemicals and temperatures from -100° F to 500° F. They are nonconductive, lightweight, and resist wear due to their slippery surface.

Nylon Decorative Round Head Slotted Screws

Nylon screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Extreme-Temperature Chemical-Resistant
PTFE Decorative Round Head Slotted Screws

PTFE screws withstand harsh chemicals and temperatures from -100° F to 500° F.

Plastic High-Profile Narrow
Fillister Head Slotted Screws

Made from nylon, these screws are chemical and oil resistant, nonconductive, and lightweight.

Plastic Narrow Cheese Head Slotted Screws

Made from nylon, these screws are chemical and oil resistant, nonconductive, and lightweight.

Plastic Binding Head Slotted Screws

Plastic screws are chemical and oil resistant, nonconductive, and lightweight.

Plastic Slotted Flat Head Screws

Nylon Slotted Flat Head Screws

These screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Metric Nylon Slotted Flat Head Screws

These metric screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand.

Impact-Resistant Polycarbonate
Slotted Flat Head Screws

Polycarbonate screws resist breaking in high impact applications better than other plastic screws. All are chemical and oil resistant, nonconductive, and lightweight.

Metric Impact-Resistant Polycarbonate
Slotted Flat Head Screws

These metric polycarbonate screws resist breaking in high-impact applications better than other plastic screws. All are chemical and oil resistant, nonconductive, and lightweight.

High-Strength High-Temperature
PEEK Slotted Flat Head Screws

These screws are more reliable in high-stress, high-temperature environments than other plastic screws. They withstand water, steam, and temperatures up to 500° F.

Extreme-Temperature Chemical-Resistant
PTFE Slotted Flat Head Screws

PTFE screws are more chemical resistant than other plastic screws and withstand temperatures from -100° F to 500° F.

Socket Head Screws

Plastic Socket Head Screws

Plastic screws are chemical and oil resistant, nonconductive, and lightweight.

Nylon-Tip Alloy Steel Socket Head Screws

Nonconductive and softer than brass, the nylon tip reduces vibration and eliminates damage from metal touching metal.

Hex Head Screws

Plastic Hex Head Screws

Plastic screws are chemical and oil resistant, nonconductive, and lightweight.

Fiberglass Hex Head Screws

Fiberglass screws are stronger than plastic screws, chemical and oil resistant, nonconductive, and lightweight.

Fiberglass Flanged Hex Head Screws

These screws are chemical and oil resistant, nonconductive, and lightweight. The flange eliminates the need for a washer, distributing pressure where the screw meets the surface.

Tapping Screws for Plastic

18-8 Stainless Steel Phillips Rounded
Head Thread-Forming Screws for Plastic

These 18-8 stainless steel screws have good chemical resistance.

Super-Corrosion-Resistant 316 Stainless
Steel Phillips Rounded Head
Thread-Forming Screws for Plastic

More corrosion resistant than 18-8 stainless steel screws, these have excellent resistance to chemicals and salt water.

Steel Phillips Rounded Head
Thread-Forming Screws for Plastic

Stainless Steel Torx Rounded Head
Thread-Forming Screws for Plastic

18-8 stainless steel screws have good chemical resistance.

Steel Torx Rounded Head
Thread-Forming Screws for Plastic

These steel screws have a black-oxide or zinc-plated finish to resist corrosion.

Stainless Steel Flat Head
Thread-Forming Screws for Plastic

18-8 stainless steel screws have good chemical resistance.

Steel Flat Head Thread-Forming Screws for Plastic

These steel screws are beveled under the head for use in countersunk holes.

Hex Head Thread-Forming Screws for Plastic

Press threads into plastic to create a strong hold. Use a wrench, hex socket bit, or nutdriver to securely grip the hex head and tighten these screws.

Steel Thread-Forming Screws for Thin Plastic

These steel screws are zinc plated to resist corrosion in wet environments.

Stainless Steel Thread-Forming
Screws for Thin Plastic

18-8 stainless steel screws have good chemical resistance.

18-8 Stainless Steel Rounded Head
Thread-Forming Screws for Brittle Plastic

18-8 stainless steel screws have good chemical resistance.

High-Strength 410 Stainless Steel Rounded
Head Thread-Forming Screws for Brittle Plastic

Stronger and more wear resistant than 18-8 stainless steel screws, these are mildly chemical resistant.

Steel Rounded Head Thread-Forming
Screws for Brittle Plastic

These steel screws have alternating high and low threads to minimize cracking and splitting in brittle material such as phenolic and glass-filled plastic.

Flat Head Thread-Forming Screws for Brittle Plastic

Screws are beveled under the head for use in countersunk holes.

Thread-Cutting Screws for Plastic

These screws cut threads into drilled holes as they’re turned, so they require less driving torque and cause less stress on material than thread-forming screws.

Fastener Maintenance Assortments

Rounded Head Screws

Nylon Pan Head Phillips Screws

Metric Nylon Pan Head Phillips Screws

Metric High-Strength High-TemperaturePEEK Pan Head Phillips Screws

High-Strength High-TemperaturePEEK Pan Head Phillips Screws

Impact-Resistant PolycarbonatePan Head Phillips Screws

Metric Impact-Resistant PolycarbonatePan Head Phillips Screws

Nylon Pan Head Slotted Screws

Metric Nylon Pan Head Slotted Screws

Extreme-Temperature Chemical-ResistantPTFE Pan Head Slotted Screws

Metric Extreme-Temperature Chemical-ResistantPTFE Pan Head Slotted Screws

Nylon Decorative Round Head Slotted Screws

Extreme-Temperature Chemical-ResistantPTFE Decorative Round Head Slotted Screws

Plastic High-Profile NarrowFillister Head Slotted Screws

Plastic Narrow Cheese Head Slotted Screws

Plastic Binding Head Slotted Screws

Plastic Slotted Flat Head Screws

Nylon Slotted Flat Head Screws

Metric Nylon Slotted Flat Head Screws

Impact-Resistant PolycarbonateSlotted Flat Head Screws

Metric Impact-Resistant PolycarbonateSlotted Flat Head Screws

High-Strength High-TemperaturePEEK Slotted Flat Head Screws

Extreme-Temperature Chemical-ResistantPTFE Slotted Flat Head Screws

Socket Head Screws

Plastic Socket Head Screws

Nylon-Tip Alloy Steel Socket Head Screws

Hex Head Screws

Plastic Hex Head Screws

Fiberglass Hex Head Screws

Fiberglass Flanged Hex Head Screws

Tapping Screws for Plastic

18-8 Stainless Steel Phillips RoundedHead Thread-Forming Screws for Plastic

Super-Corrosion-Resistant 316 StainlessSteel Phillips Rounded Head Thread-Forming Screws for Plastic

Steel Phillips Rounded HeadThread-Forming Screws for Plastic

Stainless Steel Torx Rounded HeadThread-Forming Screws for Plastic

Steel Torx Rounded HeadThread-Forming Screws for Plastic

Stainless Steel Flat HeadThread-Forming Screws for Plastic

Steel Flat Head Thread-Forming Screws for Plastic

Hex Head Thread-Forming Screws for Plastic

Steel Thread-Forming Screws for Thin Plastic

Stainless Steel Thread-FormingScrews for Thin Plastic

18-8 Stainless Steel Rounded HeadThread-Forming Screws for Brittle Plastic

High-Strength 410 Stainless Steel RoundedHead Thread-Forming Screws for Brittle Plastic

Steel Rounded Head Thread-FormingScrews for Brittle Plastic

Flat Head Thread-Forming Screws for Brittle Plastic

Thread-Cutting Screws for Plastic

Fastener Maintenance Assortments

Fastener Maintenance Assortments

Metric High-Strength High-Temperature
PEEK Pan Head Phillips Screws

High-Strength High-Temperature
PEEK Pan Head Phillips Screws

Impact-Resistant Polycarbonate
Pan Head Phillips Screws

Metric Impact-Resistant Polycarbonate
Pan Head Phillips Screws

Extreme-Temperature Chemical-Resistant
PTFE Pan Head Slotted Screws

Metric Extreme-Temperature Chemical-Resistant
PTFE Pan Head Slotted Screws

Extreme-Temperature Chemical-Resistant
PTFE Decorative Round Head Slotted Screws

Plastic High-Profile Narrow
Fillister Head Slotted Screws

Impact-Resistant Polycarbonate
Slotted Flat Head Screws

Metric Impact-Resistant Polycarbonate
Slotted Flat Head Screws

High-Strength High-Temperature
PEEK Slotted Flat Head Screws

Extreme-Temperature Chemical-Resistant
PTFE Slotted Flat Head Screws

18-8 Stainless Steel Phillips Rounded
Head Thread-Forming Screws for Plastic

Super-Corrosion-Resistant 316 Stainless
Steel Phillips Rounded Head
Thread-Forming Screws for Plastic

Steel Phillips Rounded Head
Thread-Forming Screws for Plastic

Stainless Steel Torx Rounded Head
Thread-Forming Screws for Plastic

Steel Torx Rounded Head
Thread-Forming Screws for Plastic

Stainless Steel Flat Head
Thread-Forming Screws for Plastic

Stainless Steel Thread-Forming
Screws for Thin Plastic

18-8 Stainless Steel Rounded Head
Thread-Forming Screws for Brittle Plastic

High-Strength 410 Stainless Steel Rounded
Head Thread-Forming Screws for Brittle Plastic

Steel Rounded Head Thread-Forming
Screws for Brittle Plastic