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S-MD HWH and HHWH #3 Self-drilling hex screws

S-MD10-16x3/4 HHWH3

Self-drilling hex head screw (zinc-plated) with superior corrosion resistance for fastening sheet metal to steel substructures in exterior applications.

  • Screw head type: Hexagon head
  • Screw drive/recess type: 5/16 Hexagon
  • Collated: No
premium

Customers also searched for sst, salt spray test, 1000 hr or ASTM B117.

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Pack size
  • 6500 pc
 Product options
Quantity
Packs
Total Pieces
1
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Technical Data

Screw head type
Hexagon head
Screw drive/recess type
5/16 Hexagon
Collated
No
Product Class
Premium
Drilling capacity - min (ga)
12 ga
Environmental Conditions
Dry indoor, Indoor environments with temporary condensation, Outdoor, rural or urban environment with low pollution

Documents

pdf IF Technical Manual Americas Portfolio August 2026, English [ 8.6 MB ]

Features & Applications

Features

  • Corrosion resistance tested to 1000 hours of salt-spray testing as per ASTM B117
  • Fast and robust drill point
  • Choice between Hex Washer Head (HWH) and High Hex Washer Head (HHWH)

Applications

  • Fastening profile steel sheets to light- and medium-gauge steel framing (maximum combined thickness up to 0.177 or 0.209 inch)
  • Steel framing, truss or joist fabrication
  • HVAC duct fabrication and installation
  • Fastening accessories to studs (electrical boxes, clips etc.)
  • Fastening accessories to studs (electrical boxes, clips, etc.)

For approval or certificate information, please see individual items.

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