1/4"-14 x 2-1/2" Square Flat Head 410 Stainless Self Drill Screws, 200 Pack | Hardened 410 stainless steel drills and taps in one step, no pilot hole.($113.99Value)

Description

DRILLS ITS OWN HOLE - the drill point cuts through steel and taps machine threads in one motion; no pilot hole, no punch, no layout time TRUE DRILL POINT GEOMETRY - fluted #3 point evacuates chips as it cuts, preventing the point-melt that makes cheap self-drillers wander and squeal HEX WASHER HEAD - positive drive with a magnetic hex setter, no cam-out under impact driver torque; integral washer face spreads the clamp load 410 HARDENED STAINLESS - hard enough to drill steel, stainless enough for coastal and wet exposure; the self-driller for jobs zinc cannot survive SPECS (1/4 x 2-1/2") - #3 drill point drills steel up to 0.175" thick; 3/8" hex drive; 410 stainless, passivated; no pilot hole required Self-drilling screws, 1/4 x 2-1/2", hex washer head, #3 drill point, 410 hardened stainless steel. The fluted drill point bores through steel up to 0.175" thick and taps machine threads in the same motion - fasten steel to steel or wood to steel with no pilot hole. Drive with a 3/8" magnetic hex setter. 410 stainless provides drilling hardness with genuine corrosion resistance for coastal, marine and wash-down environments. Typical uses: metal framing, purlins, strut, HVAC, electrical enclosures and general steel fabrication.