Hex Fasteners | McMaster-Carr

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System of Measurement

Thread Size

Length

Fastener Head Type

Material

Stainless Steel

Threading

Partially Threaded

Threaded on Both Ends

Threaded on One End

Socket Head Profile

Finish

Titanium Carbon Nitride (TiCN) Coated

Zinc Flake Coated

Head Diameter

Head Height

Thread Pitch

Thread Type

Drive Size

Thread Direction

Thread Spacing

Specifications Met

Federal Specification

Shoulder Length

Shoulder Diameter

Rounded Head Style

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

Flat Head Profile

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

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24,220 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

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

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

Fastener Assortments

Fastener Assortments

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

Captive Panel Screws

Captive Panel Screws

Secure panels and enclosures while still having access to them

Tighten and loosen by hand without the need for tools

Studs

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

Socket Nuts

Install in recessed holes and tight spots where a wrench won’t fit; also known as Allen nuts

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Anchors

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

Standoffs

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

Fabricating and Machining

Lathe Tool Insert Holder Replacement Parts

Lathe Tool Insert Holder Replacement Parts

Replace clamps, screws, shims, and other parts in lathe tool insert holders

Fixturing Clamps

Fixturing Clamps

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

T-Slot Nuts

Combine with setup studs or bolts to mount fixtures to machine tables

Clamps

Hold workpieces securely in place

Building and Machinery Hardware

Protective Plugs

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

T-Slotted Framing and Fittings

T-Slotted Framing and Fittings

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

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