Value Collection 312-8926 Spiral Flute Screw Extractor Size 6

Product Description

The VALUE COLLECTION 312-8926 is a Size 6 spiral flute screw extractor designed to remove broken or seized screws from metal and other substrates. The spiral flute design bites into the damaged fastener as the extractor is turned counterclockwise, applying increasing grip to back out the stuck screw. At 3.75 inches overall length, this extractor provides adequate reach and leverage for typical hand-tool and drill-press applications. It is compatible with screws ranging from 5/8 to 7/8 inches in diameter, including 3/8 inch NPT and 3/8 inch BSP threaded fasteners. Machinists, maintenance technicians, and general tradespeople use this tool when standard removal methods have failed.

This extractor is suited for use on broken bolts, stripped machine screws, and seized fasteners found in HVAC equipment, plumbing fixtures, electrical enclosures, and general mechanical assemblies. The Size 6 designation targets mid-range fastener diameters from 16 to 22 mm (5/8 to 7/8 inches), making it one of the most commonly needed sizes in a service technician's extractor set. It is sold individually, allowing replacement of a single worn or broken extractor without purchasing a full set.

Key Features

• Spiral flute geometry increases grip as counterclockwise torque is applied
• Size 6 fits screw diameters from 5/8 to 7/8 inches (16 to 22 mm)
• Compatible with 3/8 inch NPT and 3/8 inch BSP threaded fasteners
• 3.75 inches overall length for reach and leverage in confined spaces
• Sold as a single unit for targeted replacement

Compatibility

Designed for use with broken or seized screws and bolts in the 5/8 to 7/8 inch diameter range (16 to 22 mm), including 3/8 inch NPT and 3/8 inch BSP threaded fasteners across a wide range of mechanical, plumbing, and HVAC applications.

Installation Notes

A licensed machinist or experienced tradesperson should drill a pilot hole into the center of the broken fastener before inserting the extractor. Use a drill press or center-punch to ensure accurate alignment and prevent extractor breakage. Always wear appropriate eye protection when drilling and extracting. Apply penetrating oil to seized fasteners before extraction to reduce the torque required and lower the risk of extractor fracture.