Self-Drilling Screws are manufactured from cold-heading steel and feature a #2 drill point. The unique tip design allows them to drill, tap, and fasten metal to metal objects in one operation, without the need to pre-drill. This creates the optimal drill performance and thread forming experience. The most common applications are used on metal to metal, but they can also be used in a wide variety of other applications. IFI-113 and ASTM C954 cover the material and performance requirements for steel self-drilling screws.

L.H. Dottie TEKHW812

Self-Drilling Screws are manufactured from cold-heading steel and feature a #2 drill point. The unique tip design allows them to drill, tap, and fasten metal to metal objects in one operation, without the need to pre-drill. This creates the optimal drill performance and thread forming experience. The most common applications are used on metal to metal, but they can also be used in a wide variety of other applications. IFI-113 and ASTM C954 cover the material and performance requirements for steel self-drilling screws.

L.H. Dottie TEKHW834

Self-Drilling Screws are manufactured from cold-heading steel and feature a #2 drill point. The unique tip design allows them to drill, tap, and fasten metal to metal objects in one operation, without the need to pre-drill. This creates the optimal drill performance and thread forming experience. The most common applications are used on metal to metal, but they can also be used in a wide variety of other applications. IFI-113 and ASTM C954 cover the material and performance requirements for steel self-drilling screws.

L.H. Dottie TEKHT1012

Self-Drilling Screws are manufactured from cold-heading steel and feature a #2 drill point. The unique tip design allows them to drill, tap, and fasten metal to metal objects in one operation, without the need to pre-drill. This creates the optimal drill performance and thread forming experience. The most common applications are used on metal to metal, but they can also be used in a wide variety of other applications. IFI-113 and ASTM C954 cover the material and performance requirements for steel self-drilling screws.

L.H. Dottie TEKW812

Self-Drilling Screws are manufactured from cold-heading steel and feature a #2 drill point. The unique tip design allows them to drill, tap, and fasten metal to metal objects in one operation, without the need to pre-drill. This creates the optimal drill performance and thread forming experience. The most common applications are used on metal to metal, but they can also be used in a wide variety of other applications. IFI-113 and ASTM C954 cover the material and performance requirements for steel self-drilling screws.

L.H. Dottie TEKHT101

Self-Drilling Screws are manufactured from cold-heading steel and feature a #2 drill point. The unique tip design allows them to drill, tap, and fasten metal to metal objects in one operation, without the need to pre-drill. This creates the optimal drill performance and thread forming experience. The most common applications are used on metal to metal, but they can also be used in a wide variety of other applications. IFI-113 and ASTM C954 cover the material and performance requirements for steel self-drilling screws.

L.H. Dottie TEKHW1012

Self-Drilling Screws are manufactured from cold-heading steel and feature a #2 drill point. The unique tip design allows them to drill, tap, and fasten metal to metal objects in one operation, without the need to pre-drill. This creates the optimal drill performance and thread forming experience. The most common applications are used on metal to metal, but they can also be used in a wide variety of other applications. IFI-113 and ASTM C954 cover the material and performance requirements for steel self-drilling screws.

L.H. Dottie TEKHW81

Self-Drilling Screws are manufactured from cold-heading steel and feature a #2 drill point. The unique tip design allows them to drill, tap, and fasten metal to metal objects in one operation, without the need to pre-drill. This creates the optimal drill performance and thread forming experience. The most common applications are used on metal to metal, but they can also be used in a wide variety of other applications. IFI-113 and ASTM C954 cover the material and performance requirements for steel self-drilling screws.

L.H. Dottie TEKHT812

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

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Sid Harvey T397-205B

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

A unique thread design and quality controlled manufacture spell the Zip-In difference. Zip-In's sophisticated heat treat process allows the screw to taper to a fine, sharp point without sacrificing critical point strength. A single starting thread is formed down to the very tip of the point and is the source of Zip-In's penetrating power. A second thread above the point engages after initial penetration and drills in the screw double fast. Zip-In screws are faster driving, with a greater capacity for fastening heavier gauges of sheet metal than any other self-piercing type.

• Undercut-indented hex washer slotted head
• Burr free
• Full 1/4" (number 8) head will not strip out of hex driver opening
• (1) 1/4" hex driver accommodates all sizes
• Undercut - always seats flush
• Trademarked and patented head markings indicate 1 and only genuine zip-ins US patent number D524, 638
• Combination lead double thread design: single starting thread machined down to very tip of screw point, instantly penetrates and engages in heavy gauge sheet metal and layered light gauge
• Consistent hard point: quality controlled heat treat, sharp tapered point will not mushroom or break, no walking

Sid Harvey Item #:T473-4: Replaces Part #:'s : 11695,
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Malco T473-4

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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Duro Dyne T475-7D