Class 8.8 Bolts | McMaster-Carr

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System of Measurement

Thread Size

Length

Thread Pitch

Fastener Strength Grade/Class

ASTM Grade A325

ASTM Grade A490

Threading

Partially Threaded

Fastener Head Type

Finish

Corrosion-Resistant Coated

Zinc Flake Coated

Zinc Yellow-Chromate Plated

Material

Head Width

Head Height

Specifications Met

Thread Spacing

Thread Direction

Drive Style

Hex with Pilot Recess

Thread Type

Screw Features

Color

Socket Head Profile

Thread Fit

Metric Class 6g

Metric Class 6h

Metric Class 8g

Tensile Strength

100,000 psi or greater

Hardness

DFARS Specialty Metals

RoHS

REACH

Export Control Classification Number (ECCN)

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1,670 Products

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

Carriage Bolts

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

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 that won't snag on surrounding parts

Set Screws

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

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

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