Best Materials Roofing Supplies

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Washer And Fastener Head Styles:

Washer design contributes to the weather seal of a fastener. We offer several washer options based upon the type of fastener and the application requirements. Whether you need a steel washer, brass washer, or plastic washer, we have it here at BestMaterials.com. Please make sure you also check out our different variety of washer sizes and styles too!


   
  Product Categories:
    Fasteners
    Sealing Washer Items
    Sealing Washer Size Options & Installation

Bonded Washer
Bonded Sealing Washer

  • EPDM rubber bonded to metal
  • Metal washers are available in galvanized steel, aluminum, and stainless steel
  • Bonded washers offer a low-profile appearance
  • Provides positive weather seal between panel and fastener head

Sealer Cupped Hex Washer Head
Sealer Cupped

  • EPDM rubber captured under integral cupped hex head washer
  • Cupped washer head prevents overdriving
  • EPDM washer and cupped head offers an excellent weather seal
  • EPDM is protected from UV rays by cupped washer head

Control Seal
Control Seal

  • EPDM rubber captured under a stamped "dome"
  • Available on many Woodgrip drill screws
  • Reinforced domed shoulder distributes clamp load
  • EPDM sealant compressed in three key areas
  • Weather tight seal even if fastener is driven in on an angle*

* Proper installation techniques should always be employed.

 

Fastener Head Styles

Common fastener head styles are:

irius drive, low profile
  • Irius drive, low profile
HWH (hex washer head)
  • HWH (Hex Washer Head)
Cupped hex washer head
  • Cupped hex washer head sealer
Metal-alloy capped cupped: HWH 

ZAC or HWH MAC
  • Metal-alloy capped cupped: HWH ZAC or HWH MAC
Pancake head
  • Pancake head

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