Black Oxide Screws | McMaster-Carr

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Finish

Head Finish

System of Measurement

Thread Size

Length

Fastener Head Type

Threading

Partially Threaded

Threaded on Both Ends

Drive Style

External 12-Point

External Square

Hex with Pilot Recess

Spring Plunger Wrench

Tamper-Resistant Hex

Tamper-Resistant Torx

Tamper-Resistant Torx Plus

Socket Head Profile

Head Diameter

Material

Stainless Steel

Head Height

Thread Pitch

Thread Direction

Right Hand and Left Hand

Thread Type

Metric Trapezoidal

Drive Size

Thread Spacing

Fastener Strength Grade/Class

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

Screw Size

DFARS Specialty Metals

REACH

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

Washer Finish

Body Finish

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12,395 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

Flat Head Screws

Flat Head Screws

Fit in countersunk holes for a flush finish

Rounded Head Screws

Rounded Head Screws

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

Shoulder Screws

Shoulder Screws

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

Set Screws

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

Wood Screws

Fasten material to wood or pieces of wood to each other

Tapping Screws

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

Hex Head Screws

Hex Head Screws

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

Tighten and loosen by hand without the need for tools

Carriage Bolts

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

12-Point Screws

12-Point Screws

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

Fastener Assortments

Fastener Assortments

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

T-Bolts

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

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

Elevator Bolts

Create a flush joint to allow movement in tight spaces such as grain elevators and belting systems

Studs

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

Binding Barrels and Screws

Binding Barrels and Screws

Thread together for a low-profile fastener

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Spring Plungers

Spring Plungers

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

Threaded Rods

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

Fabricating and Machining

T-Slot Bolts

Secure clamps and workpieces to machine tables with quicker setup than a T-slot nut and stud

Setup Studs

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

Fixturing Kits

Everything needed to mount workpieces of different sizes to your machine table

Fixturing Clamps

Fixturing Clamps

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

Power Transmission

Lead Screws and Nuts

Lead Screws and Nuts

Components travel along a screw with broad, square threads to clamp and lift heavy loads

Ball Screws and Nuts

Ball Screws and Nuts

Internal ball bearings roll on screws for low friction when moving components at high speeds

Building and Machinery Hardware

Knobs

Position, tighten, and secure fixtures and equipment

Material Handling

Eyebolts

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

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