Double-Hex Head Bolts | McMaster-Carr

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Threading

Partially Threaded

Threaded on Both Ends

Fastener Head Type

System of Measurement

Thread Size

Length

Material

Aluminum Bronze

Stainless Steel

Thread Length

Thread Pitch

Drive Size

Overall Length

Thread Direction

Right Hand and Left Hand

Head Width

Finish

OD

Thread Type

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

Drive Style

External 12-Point

Thread Spacing

DFARS Specialty Metals

RoHS

Compliant with Exemptions

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

REACH

Square Drive Size

Export Control Classification Number (ECCN)

Thread Fit

ASME Interference Class 5

Metric Class 4h

Metric Class 6g

Metric Interference Sk6

Unified Standard Class 1A

Unified Standard Class 2A

Unified Standard Class 3A

Socket Shape

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2,338 Products

12-Point Screws

Steel 12-Point Screws

Steel 12-Point Screws

Extremely strong, similar to Grade 9 steel

Stainless Steel 12-Point Screws

Stainless Steel 12-Point Screws

Excellent corrosion resistance with strength comparable to Grade 9 steel

Other Products

Setup Studs

Secure setup clamps and fixtures to your machine table or assemble heavy machines

Connecting Rods

Connecting Rods

Use with rod ends and swivel joints to link components in push/pull assemblies

Studs

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

Shoulder Screws

Shoulder Screws

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

Sockets

Turn fasteners with an external drive style without slipping and damaging the drive

Dowel Screws

Screw into holes to join two pieces of wood

Lathe Tool Insert Holder Clamp Screws

Lathe Tool Insert Holder Clamp Screws

Replace the clamp screws on your lathe tool insert holder

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