Machine screws are small-diameter fasteners suitable for high-volume machining applications and various surfaces. These straight-bodied fasteners with flat ends and full threads fit in pre-tapped holes or match with machine screw nuts.

They are commonly used in automotive and machinery assembly due to their uniformity. Some variants include tamper-resistant screws needing special tools and sealing screws with O-rings for protection against air, chemicals, and moisture.

Some of the most popular types of machine screws we carry are:

Flat Head Machine Screws - Include flat tops with conical bearing surfaces for flush mounting in countersunk holes.

Round Head Machine Screws - Feature round heads with flat bearing surfaces and deep recessed driving slots for low-profile applications.

Pan Head Machine Screws - Have flat bearing surfaces with rounded heads, commonly used in electronic applications.

Truss Head Machine Screws - Feature low, rounded, wide heads for broader load distribution.

Hex Head Machine Screws - Feature hexagonal heads for wrench tightening in construction applications.

This is just the most commonly sold types of machine screws we stock, but we carry many other types all available in a variety of materials like steel, stainless steel, aluminum and many more.

Our knowledgeable Customer Service Representatives are available to help you to select the right machine screw for your application.