Type 23 Thread-Cutting Screws

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	Tapping Method Tapping Method	Show

	Thread Cutting

	Tapping Method Tapping Method	Hide


Thread Cutting	Thread Forming

	System of Measurement System of Measurement

Inch

Metric

	Length Length

	Head Type Head Type


Rounded	Hex

Flat

	Screw Size Screw Size

	Thread Size Thread Size

2-56
4-40
5-40
6-32
8-32
10-24
10-32
12-24
1/4"-20
5/16"-18
3/8"-16
1/2"-13

	Drive Style Drive Style


Phillips	External Hex	Torx

Slotted	Square

	Tip Type Tip Type


Blunt	Drilling

Pointed

	Tapping Screw Type Tapping Screw Type

	F
	BSD
	25/BT
	23/T
	17

	Material Material

Steel

Stainless Steel

	Finish Finish

Ultra-Corrosion-Resistant
Coated

Zinc Plated

	For Use In For Use In

Plastic-Wood
Composite

Plastic-Wood
Composites

Sheet Metal

Steel

Wood

	Threading Threading

	Fully Threaded
	Partially Threaded

	Rounded Head Style Rounded Head Style

	Pan

	Drill Bit Decimal Size Equivalent Drill Bit Decimal Size Equivalent

	Head Height Head Height

	Drill Bit Size Drill Bit Size

	Head Diameter Head Diameter

	Screw Features Screw Features

	Flanged

	Thread Spacing Thread Spacing

Coarse

Fine

	Thread Type Thread Type

UNC

UNF

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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About Tapping Screws

Steel Hex Head Thread-Cutting Screws for Metal

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

Stainless Steel Hex Head
Thread-Cutting Screws for Metal

Made from 410 stainless steel, these screws are strong, wear resistant, and mildly chemical resistant.

Steel Rounded Head Thread-Cutting Screws for Metal

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

Stainless Steel Rounded Head
Thread-Cutting Screws for Metal

Made from 410 stainless steel, these screws are strong, wear resistant, and mildly chemical resistant.

Steel Phillips Flat Head Thread-Cutting Screws for Metal

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

Stainless Steel Phillips Flat Head
Thread-Cutting Screws for Metal

Made from 410 stainless steel, these screws are strong, wear resistant, and mildly chemical resistant.

Torx Flat Head Thread-Cutting Screws for Metal

A Torx drive has more points of contact than a Phillips drive, allowing you to apply extra force with less slippage or damage to the recess.

Quick-Install Thread-Cutting Screws for Soft Metal

A wide cutting slot provides excellent chip clearing and low driving torque in soft metal.

Electrical Grounding Screws

The green color identifies these as grounding screws. They have a flange that provides a wide flat surface for making solid electrical connections.

Hinge Screws

Commonly used with door hinge hardware, these screws cut threads in material such as aluminum and brass.

Metric Steel Flat Head Drilling Screws for Metal

With a drilling tip, these metric screws cut their own pilot hole and threads as you fasten them into material.

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.

18-8 Stainless Steel Thread-Cutting Small-Head
Screws for Softwood and Plastic-Wood Composites

18-8 stainless steel screws have good chemical resistance.

Super-Corrosion-Resistant 316 Stainless
Steel Thread-Cutting Small-Head Screws
for Softwood and Plastic-Wood Composites

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

Steel Thread-Cutting Small-Head Screws
for Softwood and Plastic-Wood Composites

Because these steel screws cut threads into drilled holes as they’re turned, they require less driving torque and cause less stress on material than thread-forming screws. Also known as trim-head deck screws, they have a small flat head and slender shank to reduce the risk of splitting boards.