7⁄8"-9 Thread Hex Head Screws | McMaster-Carr

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System of Measurement

Length

Material

Stainless Steel

Threading

Partially Threaded

Fastener Strength Grade/Class

ASTM Grade A325

Fastener Head Type

Finish

Hot-Dipped Galvanized

Zinc Flake Coated

Zinc Yellow-Chromate Plated

Head Width

Thread Spacing

Thread Type

Specifications Met

Grip Length

Drive Style

Head Height

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

Thread Direction

Thread Fit

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

DFARS Specialty Metals

Hardness

Export Control Classification Number (ECCN)

REACH

RoHS

Compliant with Exemptions

Shoulder Diameter

Head Diameter

Drive Size

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Fastening and Joining

Hex Head Screws

Hex Head Screws

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

Socket Head Screws

Socket Head Screws

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

Set Screws

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

Flat Head Screws

Flat Head Screws

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

Shoulder Screws

Shoulder Screws

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

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