Mutual Screw & Supply

M4-0.7 X 20MM(FT) 6-LOBE 90 DEG FLAT HD CLASS 8.8 STEEL MACHINE SCREW HEAT TREAT ZINC & BAKE ISO14581

M4-0.7 X 20MM(FT) 6-LOBE 90 DEG FLAT HD CLASS 8.8 STEEL MACHINE SCREW HEAT - Main image
$255.49 $399.2 In stock

M4-0.7 X 20MM(FT) 6-LOBE 90 DEG FLAT HD CLASS 8.8 STEEL MACHINE SCREW HEAT TREAT ZINC & BAKE ISO14581

ISO 14581 Flat 90° Six-Lobe

Machine Screw

Class 8.8 Steel

Heat Treated

Material: Steel Zinc

Governing Standard: ISO 14581

Thread: Full

Metric

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Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

James ★★★★★

After stripping the head on a standard Phillips trying to get these to bite in tight spaces, the 6-lobe drive on these M4s really saved the day. The zinc and bake finish feels tough and hasn't shown any rust yet after a few weeks outdoors.

Daniel A. ★★★★★

Needed a strong, reliable fastener for a tight mounting bracket—these M4 x 20mm six-lobe screws seated perfectly with a hex driver and the head sits flush as expected. The zinc coating looks even and hasn't shown any rust after a few weeks on a damp workbench.

Lily ★★★★★

Had a few stripped screws on a project, so I grabbed these for the hard spots. The heat-treated steel feels noticeably tougher than standard hardware I've used before, and the 90-degree flat head sits perfectly flush in my aluminum frame.