U-Turn Fasteners Self Tapping Screws #12-24 x 1-1/2 in - Pack of 250

In this review we tested the U-Turn Fasteners #12-24 x 1-1/2 in Hex Washer Head Tek 5 screws to see who will get the most value from a pack of 250. The bottom line: these are built for installers and makers who need dependable self-drilling performance and a waterproof seal when fastening metal to metal or metal to other substrates. The standout is the long drill point and bonded neoprene washer that create a strong, leakproof connection while the Strong Shield coating resists corrosion during outdoor use.

Key Features

• Hex head design: The hex washer head gives better grip with a wrench or driver, reducing cam-out during installation.
• Self-drilling point: The Tek 5 long drill point drills and taps its own threads into thick steel, saving time on pilot holes.
• Curved groove: The groove in the self tapping screw clears debris as it cuts, helping maintain drillability and consistent feed.
• Bonded neoprene washer: The rubber washer forms a leakproof seal around the fastener for roofing and exterior applications.
• Strong Shield coating: The multi-layer zinc-based finish provides enhanced corrosion resistance for outdoor exposure.
• Pack quantity: A pack of 250 offers good value for contractors and DIYers on larger projects.

Who It's For

These screws suit contractors, roofing crews, metal fabricators, and serious DIYers who regularly fasten metal to metal or metal to wood and need a reliable, self-drilling option with a waterproof seal. The long drill point and machine screw thread make them especially useful where tapping through thicker steel is required.

Those who only need a few specialty fasteners for light indoor trim or very thin sheet metal may find a smaller pack or a different head style more convenient; this product is optimized for repeated use on heavier materials and outdoor applications where corrosion resistance and a neoprene seal matter.

Pros & Cons

Pros

• Excellent drillability through plywood and steel reported by users, making installation faster.
• Neoprene washer creates a durable waterproof seal suitable for roofing and exterior work.
• Strong Shield zinc coating improves corrosion resistance for long-term outdoor use.
• Hex head offers better torque transfer and reduces slippage during driving.

Cons

• Pack of 250 may be more than needed for one-off projects, so it is best for frequent users.
• The screws are carbon steel with coating rather than solid stainless steel, which may not suit every marine environment.

Specifications

Product	#12-24 x 1-1/2 in Hex Washer Head Tek 5
Pack Size	250 pieces
Material	Carbon steel with Strong Shield coating
Head Type	Hex washer head
Washer	Bonded neoprene rubber washer for leakproof seal
Intended Use	Attaching sheet metal to steel or metal to metal
Coating	Zinc-based multi-layer Strong Shield finish

Our Verdict

These U-Turn Fasteners screws are a practical choice for professionals and DIYers who need a reliable, self-drilling fastener with a waterproof neoprene seal and improved corrosion protection. They deliver strong drillability and value in a large pack, making them a solid buy for roofing, metal fabrication, and repeated outdoor projects where durability matters.

Frequently Asked Questions

Can these screws drill through thick steel?
Yes, the long Tek 5 drill point and machine screw thread are designed to drill and tap their own threads through relatively thick steel.

Do the neoprene washers provide a waterproof seal?
Yes, the bonded neoprene washer creates a leakproof seal on installation, suitable for roofing and exterior connections.

What corrosion protection do they have?
The screws use a Strong Shield multi-layer zinc-based coating to improve corrosion resistance for outdoor use.