Bulk 5/16″-18 6-Lobe (Torx) Flat-Head Thread-Cutting Screws — Type F, 18-8 Stainless Steel 440258 A solid-crown indented ¼″ external-hex

A solid-crown indented ¼″ external-hex head with integral washer spreads clamp load and keeps contaminants out of the joint

#14 Indent Hex Washer Head Self-Drilling Sheet Metal Screws

Standard 82 ° flat heads can bottom out in thin sheet-metal

providing cost savings and ensuring a consistent supply of reliable fasteners

Bulk 5/16″-18 6-Lobe (Torx) Flat-Head Thread-Cutting Screws — Type F, 18-8 Stainless Steel 440258 A solid-crown indented ¼″ external-hexMonster Overview: For marine builds, food grade equipment and outdoor steel decking, choose 5 16 18 6 Lobe (Torx) Flat Head Thread Cutting Screws machined from corrosion proof 18 8 (304) stainless steel. The 82 countersunk head seats flush, while the Type F fluted point taps clean internal threads in a pre drilled or punched holechips clear through the flute, so no nut is required. Passivation plus a factory dry wax film keep drive torque low and