8 mm Drive Screws | McMaster-Carr

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System of Measurement

Thread Size

Length

1 5/16" to 4 3/4"

1 5/16" to 6 13/16"

1 3/4" to 4 3/4"

1 13/16" to 4 3/4"

1 7/8" to 6 7/8"

2 1/4" to 5 1/4"

2 3/4" to 12 1/2"

2 13/16" to 12 1/2"

2 7/8" to 7 1/8"

Thread Pitch

Fastener Head Type

Threading

Partially Threaded

Socket Head Profile

Material

Beryllium Copper

Stainless Steel

Finish

Phosphate Coated

Zinc Flake Coated

Fastener Strength Grade/Class

Thread Spacing

Drive Style

Drilled Spanner

External 12-Point

Hex with Pilot Recess

Tamper-Resistant Hex

Tamper-Resistant Torx

Head Diameter

Thread Type

Head Height

Thread Direction

Drive Size

Specifications Met

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

Shoulder Diameter

Shoulder Length

6 mm to 49.75 mm

50 mm to 99.75 mm

DFARS Specialty Metals

Head Width

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

REACH

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739 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 that won't snag on surrounding parts

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

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

Captive Panel Screws

Captive Panel Screws

Secure panels and enclosures while still having access to them

L-Keys

Turn fasteners from either end and reach into tight spots

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

T-Handle Keys

To turn fasteners in hard-to-reach spots, there's a long shaft and a grip for your whole hand

Screwdrivers

Tighten and loosen screws

Fabricating and Machining

Fixture Clamps

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

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