5/16″-18 X 1-1/4″ Machine Screws Flat Head Phillips Drive 316 Stainless Steel (100/Pkg.) Best Price

Discover durable, corrosion-resistant fasteners with our Machine Screws Philips Flat Head crafted from 316 stainless steel. The 5/16-18 thread size and 1-1/4 inch length make these fasteners ideal for marine-grade, outdoor, and heavy-duty applications where strength and longevity matter.

Key Features

Material: 316 stainless steel for superior corrosion resistance in harsh environments, including saltwater and humid conditions.

Head Type: Phillips flat head design for flush mounting in countersunk holes.

Thread: Unified National Coarse (UNC) 5/16-18 thread pitch for strong engagement.

Length: 1-1/4 inch overall length to suit a variety of assemblies.

Finish: Bright, smooth finish that resists wear and staining.

Why choose these machine screws? They combine exceptional strength with corrosion resistance, making them a reliable choice for marine hardware, outdoor enclosures, automotive assemblies, and industrial equipment. They install quickly with a standard Phillips screwdriver, and their flat head creates a clean, professional look while sitting flush against surfaces.

Specifications

Material: 316 Stainless Steel

Head: Phillips Flat

Thread: 5/16-18 UNC

Length: 1-1/4 in

Add these stainless steel machine screws to your toolkit for reliable fastening in demanding environments. Order today for fast, corrosion-resistant performance.