What is the difference between flat and pointed end screws?

Flat ended screws need a pilot hole to screw into. Sharp ended screws called self-tapping can be drilled directly into sheet-metal without a pilot hole tapped. Regular pointed screws can drill directly through thin sheet-metal but need a small pilot hole for thicker sheets.

Are these suitable for automotive applications to use as ground screws?

Yes, they work great. Just be cautious about how thick the material you are screwing into, if to thick you may need to pre-drill otherwise you may break off the screw.

Can these be used for hvac systems?

I used them to attach vinyl siding to metal frame building. The drill ends were very efficient to drill thru the metal hat channel. They should work on the thinner HVAC sheet metal. With the thinner metal you have to be very careful to not over tighten.

8 X 1 Hex Washer Head Self Drilling Tek Screw | Desertcart Saint Vincent and the Grenadines

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Description

🔧 Screw it right, screw it tight—your ultimate fastening power move!

BULK READY - Box of 100 screws means you’re always stocked and ready to tackle any project without delay.
RUST NOT HERE - Advanced zinc plating ensures exceptional corrosion resistance—perfect for indoor & outdoor projects.
BUILT TO ENDURE - Crafted from 100% high-quality zinc-plated steel for unmatched durability and longevity.
EFFORTLESS PRECISION - Self-drilling point and external hex drive system enable quick, secure fastening with a 1/4'' hex driver.
VERSATILITY AT ITS BEST - Ideal for attaching steel to steel or sheet metal—your go-to fastener for professional-grade results.

This box of 100 #8 x 1'' hex washer head self-drilling Tek screws features premium zinc-plated steel construction for superior durability and rust resistance. Designed with a self-drilling point and external hex drive, these screws deliver fast, reliable fastening for steel and sheet metal applications, indoors or outdoors. Perfect for professionals seeking efficiency and long-lasting performance.

Specifications

Material	Zinc-Plated Steel
Drive System	External Hex
Head Style	Flanged Hex
Exterior Finish	Zinc
Thread Size	#8
Point Style	Self-Drill Point
Metal Type	Stainless Steel, Zinc
Brand	Strong-Point
Color	silver/metallic
Head Type	Hex
Item Weight	1 Pounds
Thread Type	Unc
Thread Coverage	Fully Threaded
Fastener Type	Sheet Metal Screws
Set Screw Thread Type	UNC
Thread Style	Right Hand
Thread Class	2A
Fastener Size	No. 8
Size	#8-18 Thread x 1" Long
Item Diameter	0.16 Inches
Number of Pieces	100
Manufacturer	Strong-Point
Part Number	SW-ZIN8100H
Item Weight	1 pounds
Item model number	BC-0816KW-100 FBA
Item Package Quantity	1
Cutting Diameter	0.16 Inches
Measurement System	Imperial
Certification	Astm, Sae, An
Special Features	Use 1/4'' Hex Drill Tip Type
Usage	For attaches Steel or Sheet Metal Steel
Batteries Included?	No
Batteries Required?	No

Reviews

K**E

Never had a issue with the self tapping

Works great. Never had any issues tapping into metals. Seems like a good quality. I buy these alot where they cost less then the local hardware store.

10.06.2025

R**.

Great quality

Great quality screw, sharp goes thru sheet metal easily.

2.05.2025

T**E

Great for ductwork

Works great for tying ductwork together

21.05.2025

J**H

Great prices..

Screws work perfectly.

20.04.2025

M**E

Hey Washer Nut

Use these on my lawnmower tires for more grip/traction when mowing on the bank - sort of like studs on winer tires. Works great

5.05.2024

S**D

Works For Me

Works Good For me. relatively tamper resistant

14.07.2024

K**L

23.07.2024

M**C

arrived on time as described

28.03.2024

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Sold byAmazon Saint Vincent and the GrenadinesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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