HirtOtter Machine Screws - 304 (18-8) Stainless Steel, UNC Coarse Threads, Phillips Flat Head, Countersunk Design
Matching Phillips Bit Included
HirtOtter machine screws are designed for consistent and reliable fastening performance.
Constructed from 304 (18-8) stainless steel with precision-formed UNC coarse threads, these screws are suitable for a wide range of interior and exterior projects.
Each package includes a matching Phillips screwdriver bit for convenient installation.

304 (18-8) STAINLESS STEEL
Made of 304 (18-8) stainless steel for rust and corrosion resistance. Suitable for indoor, outdoor, humid, and marine environments.

UNC COARSE THREADS
Precision UNC coarse threads offer secure engagement and help prevent stripping during installation. Suitable for use in electrical boxes, machinery, and various materials.

PHILLIPS FLAT HEAD & COUNTERSUNK
Phillips drive with flat countersunk head design provides a clean, flush finish for applications requiring a smooth surface appearance.

MATCHING PHILLIPS BIT
Each set includes one correctly sized Phillips bit:
#0–#4 screws include #0 or #1 bit
#6–#10 screws include #2 bit
Larger sizes include #3 bit

REUSABLE STORAGE CASE
Screws come packaged in a durable plastic case for organized storage and easy access.
APPLICATIONS
These machine screws are widely used for:
Electrical: Outlet covers, switch plates, junction boxes, lighting fixtures
Electronics: Circuit boards, small appliances, instruments
Household & DIY: Furniture assembly, cabinet installation, general repairs
Marine: Boat hinges, hatches, outdoor fixtures
Automotive: Interior trim, panels, brackets
Industrial: Machinery, equipment assembly, panel mounting
Construction: Recessed outlet and fixture installation

Frequently Asked Questions
Q: How to select the correct screw size?
A: Verify the specifications of your existing fastener or project requirements. You may search for the required size on Amazon to view available options.
Q: Are these screws corrosion resistant?
A: These screws are made of 304 (18-8) stainless steel, which provides corrosion resistance for indoor, outdoor, humid, and marine applications.
Q: Does each package include a screwdriver bit?
A: Yes, each set includes one Phillips screwdriver bit matched to the screw size.
Q: What type of threads do these screws use?
A: These machine screws feature precision UNC coarse threads.