Lag Screw, 5/16 x 3″

Secure marine and outdoor mounting with this 5/16 x 3″ lag screw made from 18-8 stainless steel. Designed for strong fastening where corrosion resistance matters.

Key Features

• Size: 5/16 x 3″
• Material: 18-8 stainless steel

Intended Use

• Marine fastener applications
• General hardware/mounting projects (use with appropriate predrilling for lag screws)

Product Details

• Lag screw size: 5/16 x 3″
• Finish/Material: 18-8 Stainless Steel
• SKU (variant): 50-00178

Parts Desk Insights

Best Use Case: Use for mounting jobs that require a strong, threaded fastener with corrosion-resistant stainless steelsuch as installing hardware to structural or weather-exposed surfaces.

Common Issues: Lag screws typically require proper pilot-hole sizing for the material youre fastening into. If you dont predrill (or drill the correct diameter), you can split wood or create poor fastening strength in other substrates.

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