#12-14 x 1-1/4 HWH TEK w/ ZAC Cup Head & Seal Washer (250) - #12-14 x 1-1/4 Inch TEK with 5/16 Inch HWH Zinc Aluminum Cap (ZAC) cup head & EPDM washer. 250/Bag. (SFS X4646-FL). Price/Bag.
#12-14 x 1-1/4 HWH TEK w/ ZAC Cup Head & Seal Washer (250)
$76.00 SALE $50.99
(Savings: $25.01)
  Order Options:  
  Add To Cart  
  Add To Saved Cart  


#12-14 x 1-1/4 inch TEK with 5/16 inch HWH Zinc Aluminum Cap (ZAC) cup head & EPDM washer. 250/Bag. Price/Bag.(SFS X4646-FL).

Ordering Notes:

  • Shipping leadtime: 1-2 business days.


Self-tapping 5/16 inch hex head DRILL screw for fastening metal-to-metal. Zinc Alloy Cap for long life and corrosion protection. Metric Size: SD5-Z-H8.N12 5,5x51. OPTIONAL SIZES: Available in 3/4 to 3 inch lengths and drill points of #2, #3, #5 and with 3/8 inch Hex Head. See data sheet. OPTIONAL PAINTED FINISH: VistaCoat Painted, in one of 48 Standard Roofing Colors


  • Impax™ — Sealer — Drill Screws #12-14 Self Drilling Screw
  • Integral Zinc Aluminum Capped 5/16 inch Hex Washer Head configuration fastener with an EPDM sealing washer instead of the traditional bonded sealing washer.
  • Precision cold forged assuring superior point strength and the fastest drilling time performance through high strength steel and nested purlins.
  • Delivers ultimate performance in light, medium and heavy gage applications.
  • Designed and engineered to have low driving and thread engagement torque and provide maximum clamp load.
  • 5/16 inch Cupped Hex Washer Head: Thread Major Dia: .215 – .209, Thread Minor Dia: .164 – .157
  • Strength (lbs ult.): Tensile: 2900, Torsional: 92 in-lbs, Shear: 2050
  • Pull-out (lbs ult.): 12 ga (.105): 1539, 14 ga (.075): 1010, 16 ga (.060): 724
  • Pull-over (lbs ult.): 22 ga (.030): 1647, 24 ga (.024): 1310, 26 ga (.018): 794



Email us at sales@bestmaterials.com or
Call us at 1-800-474-7570 or 602-272-8128
You'll get a prompt reply!

similar product terms: metal to metal screw, sealer screw, metal roof screw, ZAC screw, ZAC roof screw, ZAC TEK, zinc aluminum capped, zinc alloy capped, painted roof screw, drill screw, drill screw with washer, impax, impax screw

A CSG Group Company

Shop with
Peace of Mind!