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Hot Item Bulk 5/16″-18 Slotted Hex-washer Thread-cutting Screws — Type F, 18-8 Stainless Steel Massive 45% Savings [dOwFtQ53]

$42.99 $137.99 -69%

Bulk 5/16″-18 Thread-Cutting Screws — 18-8 Stainless Steel These top-quality 5/16″-18 Slotted Hex-Washer Thread-Cutting Screws from Monster Bolts are engineered for unmatched performance and durability. Crafted from corrosion-resistant 18-8 stainless

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Bulk 5/16″-18 Thread-Cutting Screws — 18-8 Stainless Steel

These top-quality 5/16″-18 Slotted Hex-Washer Thread-Cutting Screws from Monster Bolts are engineered for unmatched performance and durability. Crafted from corrosion-resistant 18-8 stainless steel, these screws are ideal for demanding applications. Their unique dual-drive head design, featuring both an indented hex and a broad slot, ensures versatility with any driver, whether it's a socket, impact gun, or flat driver. The integrated washer provides enhanced load distribution and resistance to pull-through, making them perfect for securing marine panels, food-grade frames, and more.

Technical Specifications and Features

The 5/16″-18 UNC — Type F cutting point of these screws is designed to form clean threads in a range of materials, including steel plate and hardwood. They come in lengths of ¾″ and 1″ and feature a slotted indented hex-washer head that is easy to drive with a ½″ wrench. Each screw is coated with a factory dry-wax film, ensuring consistent seating torque. The list of features includes:
  • Dual-Drive Head: Indented hex and broad slot for universal compatibility.
  • Integrated Washer: Increased bearing surface for better seal and resistance to pull-through.
  • Material Edge: 18-8 stainless steel for excellent corrosion resistance.
These specifications make them suitable for a wide range of industries and applications.

Applications and Benefits

Ideal for use in marine panels, food-grade frames, trailer skins, and hardwood-to-steel joins, these screws offer significant advantages. Their ability to cut clean threads in pre-drilled or punched holes simplifies installation and eliminates the need for chip clean-up or additional fasteners. With their passivated surface and dry-wax coating, they ensure low, repeatable seating torque, making them perfect for use in outdoor or food-service environments. Bulk packaging is available for bulk orders, making them an excellent choice for stainless fabrication, dock builders, and trailer shops. Order yours today and experience the Monster difference!

What Our Customers Say

January 2, 2026

Absolutely no complaints!

The functionality is flawless.

- Aria C..

January 2, 2026

Absolutely no complaints!

I'm very happy with the solid construction.

- Jedidiah M..

January 2, 2026

Absolutely no complaints!

This is top-tier quality, no doubt.

- Chloe G..

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