Bulk 5/16″-18 6-Lobe (Torx) Pan Head Thread-Cutting Screws — Type F, Bright-Zinc & Hydrogen-Relief Baked Length:1000 Qty - 5/16-18 x 1-1/2" Expansion: 360° collet expansion ensures

Expansion: 360° collet expansion ensures a secure hold in solid concrete

a built-in washer head

For professional contractors

Full Thread: Continuous engagement for sheets

Bulk 5/16″-18 6-Lobe (Torx) Pan Head Thread-Cutting Screws — Type F, Bright-Zinc & Hydrogen-Relief Baked Length:1000 Qty - 5/16-18 x 1-1/2" Expansion: 360° collet expansion ensuresMonster Overview: These 5 16 18 6 Lobe (Torx) Pan Head Screws tap their own mating threads thanks to a Type F fluted cutting pointtaps mating threads in a pre drilled or punched holeno nut required; chips clear through the flute. Bright zinc electro plating supplies corrosion protection; every lot is hydrogen relief baked and factory dry waxed for ultra low, repeatable drive torque. Shipped in bulk master cartons to keep your per piece cost monster