Fastener Kits | McMaster-Carr

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Plastic Carrying Case

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Corrosion-Resistant Coated

Zinc Yellow-Chromate Plated

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Washer Type

Nut Type

Spring Lock Washers Included

For M4 Screw Size (200 Pieces)

For M5 Screw Size (200 Pieces)

For M6 Screw Size (200 Pieces)

For M8 Screw Size (200 Pieces)

Rounded Head Sheet Metal Screws Included

No. 4 × 1/2" Lg. (75 Pieces)

No. 6 × 1" Lg. (50 Pieces)

No. 6 × 1/2" Lg. (50 Pieces)

No. 6 × 1/2" Lg. (75 Pieces)

No. 6 × 3/4" Lg. (50 Pieces)

No. 6 × 3/8" Lg. (50 Pieces)

No. 6 × 5/8" Lg. (75 Pieces)

No. 8 × 1 1/2" Lg. (25 Pieces)

No. 8 × 1" Lg. (25 Pieces)

No. 8 × 1/2" Lg. (50 Pieces)

No. 8 × 3/4" Lg. (50 Pieces)

No. 10 × 1 1/2" Lg. (20 Pieces)

No. 10 × 1 1/4" Lg. (20 Pieces)

No. 10 × 1" Lg. (25 Pieces)

No. 10 × 1" Lg. (50 Pieces)

No. 10 × 1/2" Lg. (50 Pieces)

No. 10 × 3/4" Lg. (50 Pieces)

No. 14 × 1" Lg. (20 Pieces)

Length

Rounded Head Style

Container Features

Specifications Met

Threading

Fastener Strength Grade/Class

Tip Type

DFARS Specialty Metals

RoHS

Compliant with Exemptions

Not Compliant

Export Control Classification Number (ECCN)

REACH

Drive Size

Container Length

Thread Pitch

543 Products

Fastening and Joining

Fastener Assortments

Keep a variety of common screws, nuts, and washers on hand

13 products

Socket Head Screws

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

19 products

Hex Head Screws

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

142 products

Rounded Head Screws

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

6 products

Set Screws

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

9 products

Tapping Screws

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

11 products

Flat Head Screws

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

4 products

Wood Screws

Fasten material to wood or pieces of wood to each other

3 products

Shoulder Screws

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

2 products

Hex Nuts

Handle most general fastening needs

7 products

Thumb Nuts

Easy to tighten and loosen by hand for making frequent adjustments

1 product

Locknuts

Hold fasteners in place to prevent loosening from vibration

4 products

Cap Nuts

Cover and protect threads while adding a finished look; also known as acorn nuts

2 products

Rivets

Join materials together permanently, especially when too thin or fragile to fasten with screws

1 product

Washers

Nearly every size and shape imaginable, from flat washers to clipped to curved

13 products

Insulating Washers

Isolate screws from electrical current and prevent corrosion from mating different metals

1 product

Lock Washers

Resist vibration to prevent fasteners from loosening

7 products

Sealing Washers

Prevent fluids from leaking around fasteners

2 products

Anchors

Secure anything from signs to heavy machinery in concrete, brick, and drywall

3 products

Threaded Inserts

Create new threads or repair stripped threads

110 products

Clip-On Nuts

Slide onto the edge of thin panels to create a fastening point

4 products

Rivet Nuts

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

16 products

Retaining Rings

Hold components on a shaft

32 products

Hog Rings

Squeeze closed using hog ring pliers to seal sacks, repair fences, and clip on tags

1 product

Dowel Pins

Align parts before assembly or use as a pivot, shaft, or hinge to join moving components

8 products

Clevis Pins

Secure parts in place and lock with a cotter pin or retaining ring

3 products

Dowel Pin Stock

Cut to the length you need for positioning and holding parts in place

53 products

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

3 products

Standoffs

Separate, position, or connect components in assemblies

2 products

Threaded Rods

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

2 products

Electrical

Electrical Enclosure Fasteners

Mount components to your enclosure without worrying about leaks

3 products

Electrical Enclosure Pole Mounts

Everything you need to secure enclosures to round poles or beams

14 products

Building and Machinery Hardware

Clamp-On Framing and Fittings

Two-piece fittings let you modify assembly stations, conveyors, and racks without dismantling them

1 product

Facility and Grounds Maintenance

Faucet Washers

Seal faucet components so they don’t leak

3 products