Fine Thread Screws | McMaster-Carr

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Thread Spacing

System of Measurement

Thread Size

Length

Fastener Head Type

Material

Carbide-Tipped Steel

Stainless Steel

Threading

Partially Threaded

Threaded on Both Ends

Threaded on One End

Drive Style

Drilled Spanner

External 12-Point

Spring Plunger Driver

Tamper-Resistant Hex

Tamper-Resistant Torx

Tamper-Resistant Torx Plus

Finish

Black Zinc Plated

Corrosion-Resistant Coated

Neoprene Coated

Phosphate Coated

Socket Head Profile

Head Diameter

Head Height

Thread Pitch

Thread Type

Drive Size

Specifications Met

Federal Specification

Fastener Strength Grade/Class

Thread Direction

Tensile Strength

Less than 10,000 psi

10,000 psi to 19,999 psi

20,000 psi to 29,999 psi

30,000 psi to 99,999 psi

100,000 psi or greater

Rounded Head Style

Thread Fit

Metric Class 5g6g

Metric Class 6g

Metric Class 6G

Metric Class 6h

Unified Standard Class 1A

Unified Standard Class 1B

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Unified Standard Class 3B

Screw Size

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

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10,073 Products

Fastening and Joining

Socket Head Screws

Socket Head Screws

With a deeper drive than flat and rounded head screws, these withstand more torque for a tighter hold

Hex Head Screws

Hex Head Screws

Used with nuts to create a stronger joint than flat and rounded screws

Rounded Head Screws

Rounded Head Screws

Sit just above the surface for a low-profile finish and hold tighter than flat head screws

Flat Head Screws

Flat Head Screws

Fit in countersunk holes for a flush finish that won't snag on surrounding parts

Set Screws

Exert pressure at the tip to hold parts in place, unlike screws that hold material together with threads

Shoulder Screws

Shoulder Screws

Rotate parts around the cylinder under the head to guide and align them during installation

12-Point Screws

12-Point Screws

12 contact points handle more torque than a hex head while a flange eliminates the need for a washer

Tighten and loosen by hand without the need for tools

Tapping Screws

Fasten a range of materials together without needing to tap the hole first

Oval Head Screws

Oval Head Screws

The domed top sits slightly above the surface of countersunk holes for a decorative look

Captive Panel Screws

Captive Panel Screws

Secure panels and enclosures while still having access to them

Carriage Bolts

A smooth head provides a finished look while a square neck keeps the bolt in place when using a nut

Studs

Press, weld, or screw in place to add a threaded fastening point

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

T-Bolts

Turn by hand for easy fastening, use as a handle, or attach as a point for straps and clamps

Threaded Rods

Anchor, connect, or hang components in a wide variety of applications

Spring Plungers

Spring Plungers

Apply accurate, consistent pressure for positioning, indexing, and ejecting parts

Single-End Studs

Single-End Studs

Use the unthreaded end as a pivot point, hinge, shaft, or locator pin

Rivet Nuts

Add threads to thin panels with access from only one side; also known as blind inserts

Weld Nuts

Weld to metal surfaces to add permanent threads

Binding Barrels

Binding Barrels

Create custom low-profile fasteners with binding barrel posts, caps, and screws

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Fabricating and Machining

Grippers

Clamp against uneven or irregularly shaped parts such as castings for a secure hold

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)