UNF Bolts | McMaster-Carr

Filter by

System of Measurement

Thread Size

Length

Threading

Material

Fastener Head Type

Fastener Strength Grade/Class

Finish

Corrosion-Resistant Coated

Titanium Carbon Nitride (TiCN) Coated

Drive Style

Spring Plunger Driver

Tamper-Resistant Hex

Tamper-Resistant Torx

Tamper-Resistant Torx Plus

Thread Spacing

Head Height

Head Width

Tensile Strength

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

Thread Direction

Specifications Met

Thread Fit

Metric Trapezoidal Class 7H

Unified Standard Class 1A

Unified Standard Class 1B

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Unified Standard Class 3B

Socket Head Profile

Head Diameter

Grip Length

Hardness

DFARS Specialty Metals

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

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

Yes

Export Control Classification Number (ECCN)

8,667 Products

Fastening and Joining

Hex Head Screws

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

1,427 products

Socket Head Screws

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

1,041 products

Rounded Head Screws

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

1,471 products

Flat Head Screws

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

883 products

12-Point Screws

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

77 products

Shoulder Screws

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

741 products

Set Screws

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

975 products

Thumb Screws

Tighten and loosen by hand without the need for tools

235 products

Tapping Screws

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

92 products

Oval Head Screws

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

32 products

T-Bolts

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

4 products

Carriage Bolts

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

13 products

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

19 products

Studs

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

54 products

Captive Panel Screws

Secure panels and enclosures while still having access to them

55 products

Threaded Rods

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

978 products

Single-End Studs

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

47 products

Standoff Caps

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

4 products

Weld Nuts

Weld to metal surfaces to add permanent threads

202 products

Rivet Nuts

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

65 products

Binding Barrels

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

29 products

Spring Plungers

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

152 products

Thread Adapters

Join threads of a different type, size, and gender

2 products

Power Transmission

Precision Lead Screw Nuts

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

63 products

Fabricating and Machining

Fixture Clamps

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

9 products