Duro Dyne Pro Point 14187 Zinc-Plated Steel Hexagonal Head Self Piercing,
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Duro Dyne Pro Point 14207 Zinc-Plated Steel Hexagonal Head Self Piercing Screw, #8 x 3/4", Unslotted, 100/Pack

• These screws assure accurately sized holes for maximum holding power, eliminating the need for hole preparation and frequent alignment problems encountered in parts assembly
• Ideal for fastening 4-bolt flange to ductwork
• Pro point screws are quality tested through 1/8" cold rolled steel
• Corrosion resistance
• The high head stays in the chuck with ease and provides stability during insertion
• 0.1" maximum drill capability
• Thread is designed to pull the screw through steel with no strip-out
• Serrated edge to prevent the backing out of the screw
• Precision formed drill point for faster penetration with less effort

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Sid Harvey T397-205 Self Tap Screws 8 x 3/4" (35 Pack),

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Sid Harvey T397-205B Chrome-Zinc Self Tapping Screw, 8 x 3/4",,

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Boston Valve USA0509101

Duro Dyne Pro Point 14179 Zinc-Plated Steel Hexagonal Head Self Piercing Screw, #8, 3/4", Unslotted

Edwards & West 10D75TSW2ZSPJ100 Sharp Point Screw #10 x 3/4 100PK

Edwards & West 10D50TSW2ZJ100 Sharp Point Screw #10 x 1/2 100PK

Edwards & West 8D50TSWZ Zinc Steel Sharp Point Hex Drive Sheet Metal Screw, #8, 1/2" L

Duro Dyne Super Saber 15180 Self Drilling/Tapping Screw, Imperial, #10-16, Several common methods such as rivets, screws, and spot welding are used to fasten materials to ductwork. Three types of screws are most often used. The first is self-tapping only and requires a hole to be drilled before the screw can be utilized. The others are both self-tapping but also create their own holes. Self piercing screws have very sharp points which act much like a scratch awl in making a small opening in the steel for the threads to engage and work the sheet metal into a coned threaded hole. These work well for light gage steel. Self-drilling screws have an integral drill point which creates a large hole for tapping. This allows the screws to be used on heavy gages of steel. The maximum total thickness of steel that the self-drilling screw can be used with is determined by the drill point.,
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Duro Dyne Super Saber 15156 Zinc-Plated Steel Hexagonal Head Self Piercing,
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Duro Dyne Super Saber 14169 Zinc-Plated Steel Hexagonal Head Self Piercing Screw, #10 x 1/2", Slotted, 100/Pack

• The super saber point offers 1-step fastening
• Its time saving performance is related to the saber-sharp piercing point with a fine-cut machine thread, which pierces the metal upon contact
• Once pierced, the thread propels the screw through metal rapidly and almost without effort
• Corrosion resistance
• Twin lead point (2-continuous threads)
• 0.44" maximum piercing capability

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thermo pride vl8fa119p60b

Duro Dyne Super Saber 14170 Zinc-Plated Steel Hexagonal Head Self Piercing Screw, #10 x 3/4", Slotted, 100/Pack

• The super saber point offers 1-step fastening
• Its time saving performance is related to the saber-sharp piercing point with a fine-cut machine thread, which pierces the metal upon contact
• Once pierced, the thread propels the screw through metal rapidly and almost without effort
• Corrosion resistance
• Twin lead point (2-continuous threads)
• 0.44" maximum piercing capability

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thermo products vlf-dbp