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Square Drive

  • Square Trim Billy Goats™ Drilling Screws
      
      
     

    Simpson Trim-Head Self-Drilling Siding Screws - Square Drive 410 Stainless Steel

    #7 Diameter, 410 Stainless Steel 
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    Attach wood siding, wood panels and metal trim to steel studs. #1 square drive trim head, .230" head diameter, #3 drill point. Threaded 2/3; of overall length. Drilling thickness capacity: up to 0.125" (111 mils or 11 ga.).
  • Square Pancake Self Drilling Screw
      
     

    Simpson Pancake-Head Self-Drilling Screws - Square Drive 410 Stainless Steel

    #10 x 1 Screw, Low Profile Pancake Head, 410 Stainless Steel 
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    #2 drill point for quick penetration of metal up to 0.142" or 10 ga. material thickness. 10 x 1 screw with a #2 square drive. Low profile head. Ideal for securing clips used in standing seam roofing.
  • Square Flat Billy Goats™ Self Drilling Screw w/ Wings
      
      
      
     

    Simpson Flat-Head Self-Drilling Screws with Wings - Square Drive 410 Stainless Steel

    410 Stainless Steel, NIBS for Countersinking 
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    Fasten wood, plywood and fiber cement to heavier steel – up to .209" thick. #3 square drive. Machine screw thread, threaded full length. 2 1/2 " length for 2 x 4 wood header; 2" length for 1" and 3/4 " boards. Flat countersunk head with self-countersinking nibs. Shank slot enhances thread formation in steel and removes exhaust. Wings above drill point provide clearance hole in work piece so it won’t climb up the shank, then break off as point engages the steel substrate. Drilling thickness capacities: up to .209" (171 mils, 7 ga) for #12, up to .250" (229 mils, 3 ga) for #14.
  • Square Bugle Billy Goats™ Self Drilling Screws
      
      
      
     

    Simpson Bugle-Head Self-Drilling Screw - Square Drive 410 Stainless Steel

    410 Stainless Steel 
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    Fasten wood, plywood and OSB panels to steel studs. #2 square-drive bugle heads drive flush with work surface. Tapping screw threads, #3 drill points. Drilling thickness capacities: up to .083" (68 mils, 14 ga.) for #6, up to .142" (118 mils, 10 ga) for #8 and up to .177" for #10.