Nonmetallic Bolts | McMaster-Carr

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O-Ring Material

Viton® Fluoroelastomer

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Tamper-Resistant Torx

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Metric Rounded Trapezoidal

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DFARS Specialty Metals

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Seal Material

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4,501 Products

Fastening and Joining

Hex Head Screws

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

451 products

Socket Head Screws

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

865 products

Rounded Head Screws

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

902 products

Thumb Screws

Tighten and loosen by hand without the need for tools

321 products

Flat Head Screws

Fit in countersunk holes for a flush finish

499 products

Fastener Assortments

Stay prepared by keeping fasteners in common sizes and materials on hand

4 products

Set Screws

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

165 products

Tapping Screws

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

141 products

Shoulder Screws

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

38 products

Captive Panel Screws

Secure panels and enclosures while still having access to them

14 products

Wood Screws

Fasten material to wood or pieces of wood to each other

4 products

Threaded Rods

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

140 products

Thread Adapters

Join threads of a different type, size, and gender

12 products

Standoffs

Threaded to separate or connect parts as well as position components in assemblies

186 products

Anchors

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

96 products

Binding Barrels and Screws

Thread together for a low-profile fastener

35 products

Rivet Nuts

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

37 products

Rivets

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

6 products

Spring Plungers

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

35 products

Magnets

Attract or repel metal objects to hang, secure, or position them

31 products

Power Transmission

Lead Screw Nuts

Mate with lead screws to move components in a straight line

188 products

Lead Screws

Pair with lead screw nuts to move components in a straight line

4 products

Rod End Seals

Keep dirt out and lubrication in to extend the life of rod ends

16 products

Rod Ends

Use with connecting rods to support loads and control steering, tensioning, or pivoting motion

112 products

Fabricating and Machining

Clamp Holding Screws

Replace worn holding screws in clamps or customize with different sizes or styles

43 products

Clamp Holding Screw Tips

Cover metal holding screws to protect workpieces from scratches

12 products

Fixturing Clamps

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

4 products

Facility and Grounds Maintenance

Toilet Seat Fasteners

Secure toilet seat hinges to your toilet bowl

1 product

Toilet Mounts

Secure toilet components with flanges and hardware kits

1 product

Building and Machinery Hardware

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

36 products

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

2 products

Door Tracks

Hang panels to slide over openings when there’s not space for a swinging door

4 products

Material Handling

Eyebolts

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

26 products

U-Bolts

Anchor heavy pipe, tube, and conduit; stronger than routing clamps and hangers

10 products

Routing Rings

Suspend wire and cable by feeding it through the eyehole

3 products

Jacks

Lift, hold, push, and position heavy objects

7 products