Round Head Square Neck Screws | McMaster-Carr

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Neck Type

Fastener Head Type

System of Measurement

Thread Size

Length

Material

Stainless Steel

Threading

Partially Threaded

Finish

Hot-Dipped Galvanized

Zinc Flake Coated

Zinc Yellow-Chromate Plated

Fastener Strength Grade/Class

Neck Width

Rounded Head Style

Head Diameter

Neck Length

Head Height

Thread Type

Thread Spacing

Specifications Met

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

Thread Direction

Thread Pitch

Thread Fit

Metric Class 6g

Metric Class 6h

Metric Class 8g

Unified Standard Class 2A

Unified Standard Class 3A

RoHS

Rounded Head Profile

Export Control Classification Number (ECCN)

REACH

DFARS Specialty Metals

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853 Products

Fastening and Joining

Carriage Bolts

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

Plow Bolts

The head sits flush with countersunk holes while the bolt stays in place when tightening a nut

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