Brass Screws | McMaster-Carr

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Precision Lead Screws and Nuts

System of Measurement

Thread Size

Length

Drive Style

Spring Plunger Driver

Fastener Head Type

Head Diameter

Screw Size

For Use In

Threading

Rounded Head Style

Tip Type

Head Height

Flat Head Profile

Performance

Electrical Insulating

Thread Type

Finish

Thread Direction

Thread Pitch

Thread Spacing

REACH

RoHS

Compliant with Exemptions

Not Compliant

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Countersink Angle

82°

90°

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

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2,679 Products

Fastening and Joining

Rounded Head Screws

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

549 products

Flat Head Screws

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

325 products

Wood Screws

Fasten material to wood or pieces of wood to each other

237 products

Socket Head Screws

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

107 products

Hex Head Screws

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

184 products

Thumb Screws

Tighten and loosen by hand without the need for tools

64 products

Set Screws

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

137 products

Oval Head Screws

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

57 products

Tapping Screws

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

1 product

Shoulder Screws

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

82 products

Captive Panel Screws

Secure panels and enclosures while still having access to them

1 product

Rivet Nuts

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

31 products

Standoffs

Separate, position, or connect components in assemblies

210 products

Standoff Caps

Create a finished look on standoffs and protect them from dirt and debris

1 product

Binding Barrels

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

164 products

Thread Adapters

Join threads of a different type, size, and gender

23 products

Threaded Rods

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

164 products

Spring Plungers

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

101 products

Electrical Power, Networking, and Controlling

Grounding Lugs

Create a common grounding path for internal components and circuits, as well as the enclosure body

1 product

Binding Posts

Test circuits before making permanent connections

13 products

Building and Machinery Hardware

Knobs

Position, tighten, and secure fixtures and equipment

38 products

Power Transmission

Lead Screw Nuts

Mate with lead screws to move components in a straight line

74 products

Precision Lead Screw Nuts

Pair with precision lead screws for accurate starts and stops in your assembly

30 products

Material Handling

Eyebolts

Route rope through the loop or attach hooks and shackles for lifting

23 products

Fabricating and Machining

Fixture Clamps

Secure your workpiece to a fixture table so it won't move during machining

34 products

Facility and Grounds Maintenance

Toilet Mounts

Secure toilet components with flanges and hardware kits

6 products

Containers, Storage, and Furniture

Hanging Hooks

Hang tools, hoses, garments, and other supplies on walls for easy access

16 products

Fluid Handling

Float Rods

Connect valve bodies and floats to build or repair a float valve

6 products