Choose these screws for their adherence to strict military standards for material and construction.

Tighten these screws by turning them to the left; once fastened, they prevent counterclockwise-moving parts from loosening.

Made of alloy steel, these low-profile screws are nearly twice as strong as their stainless steel counterparts. With half the height of a standard socket head, these low-profile screws fit in tight spaces.

These general purpose flanged screws distribute pressure where the screw meets the surface, eliminating the need for a washer.

With a tensile strength of 170,000 psi, these alloy steel screws are among the strongest we carry. They are stronger than Grade 8 steel screws and are nearly two and a half times stronger than stainless steel thread-locking screws. They have a thread locker to prevent loosening from vibration.

With a tensile strength of 180,000 psi, these alloy steel screws are among the strongest we carry. They are stronger than Grade 8 steel screws and more than two and a half times stronger than stainless steel screws with split lock washer. The split lock washer helps to resist vibration.

The nonmarring brass tip is electrically conductive and harder than nylon, but soft enough to conform to most surfaces and reduce damage from metal-on-metal contact.

These metric alloy steel screws are nearly twice as strong as stainless steel button head screws.

Made from alloy steel, these screws are three times stronger than standard steel button head Torx screws. A Torx-Plus drive has more points of contact than other drives, allowing you to tighten the screw without damaging the recess.

These metric alloy steel screws are nearly twice as strong as stainless steel button head screws. They have a flange that distributes pressure across a wide surface, eliminating the need for a separate washer.

Made from alloy steel, these screws are nearly twice as strong as stainless steel button head screws. Their tamper-resistant Torx drive (also known as a pin-in Torx drive) makes them difficult to remove without special tools.

Made from alloy steel, these screws are nearly twice as strong as stainless steel button head screws.

These metric alloy-steel screws are twice as strong as standard steel Torx flat head screws.

With a tamper-resistant Torx or Torx Plus drive (also known as a pin-in Torx or Torx Plus drive), these screws are difficult to remove without special tools.

Beveled under the head for use in countersunk holes.

Comparable to Class 12.9 steel.

The metric-sized threads on these screws are the same diameter as the shoulder. Comparable in strength to Class 12.9 steel.

These shoulder screws come with a traceable lot number and material test report. Similar in strength to Grade 8 steel.

The head height of these screws is about two-thirds the head height of a standard shoulder screw. Use them in low-clearance applications such as inside machines.

These have a head height about one-third the head height of a standard shoulder screw.

Available in metric sizes, these screws have a locking element on the threads that adds friction to resist loosening. Comparable to Grade 8 steel, they are the strongest screws we offer.

Comparable to Grade 8 steel, these screws are the strongest precision shoulder screws we offer.

These alloy steel set screws have a thin edge that digs into hard surfaces for a secure hold. They're available in metric sizes.

Choose these set screws for their adherence to strict military standards for material and construction.

These alloy steel set screws have a thin edge that digs into hard surfaces for a secure hold. A nylon locking element grips threads to resist loosening.

Made from black-oxide alloy steel, these set screws resist corrosion in dry environments. They dig into hard surfaces for a secure hold and have serrations on the cup edge that grip the material surface to resist loosening.

The tip makes good contact on flat surfaces and allows you to make frequent adjustments with minimal surface damage.

Made of alloy steel, these metric set screws are strong and wear resistant. Their flat tip holds tightly on flat surfaces without damaging them, even when making frequent adjustments.

These alloy steel set screws have an extra-soft nylon tip, which minimizes the damage that can occur from metal-on-metal contact. Use them set screws on soft surfaces such as aluminum.

With a tip that's harder than nylon and silver, these alloy steel set screws provide a secure hold on hard surfaces. The body has a black-oxide finish to resist corrosion in dry environments.

Made of alloy steel, these set screws are often used in U-shaped and V-shaped grooves and on other sloped or angled surfaces. The oval tip allows for frequent adjustments with minimal surface damage.

These metric set screws have a protruding tip that locks within a mating hole or slot to keep parts aligned. They're also known as dog-point set screws.

These metric screws have a square head, so you can turn them by hand or use a wrench for more torque. Also known as half dog-point set screws, they have a protruding tip that locks within a mating hole or slot to keep parts aligned.

A nylon locking patch grips threads to resist loosening.

Made from alloy steel, these metric set screws have a pointed tip that wedges into the contact surface for a secure hold on soft materials such as brass.

A rolling ball swivels 360° to minimize surface damage and allow for slight adjustments without loosening the screw.

The tip is narrow to pass through threaded holes.

These set screws have a low-profile flat-faced ball tip for use in low-clearance applications.

These assortments include button head screws.

Set screws exert pressure at the tip to hold objects in place.

An adjustable stop allows you to set anchors at consistent depths. Use with a hammer.

Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start.

Also known as single-start and self-locking lead screws and nuts, these have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won't unexpectedly move when the lead screw is at rest.

These metric lead screws and nuts have broad, square threads that are well suited for quick assembly, high clamping forces, and lifting and lowering heavy objects. They're commonly found in hand-powered clamps, vises, grates, doors, and work tables.

Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. Also known as single-start metric ball screws and nuts, these have a single thread that runs the length of the screw.

Also known as single-start ball screws and nuts, these have a single thread that runs the length of the screw. They operate with more torque than fast-travel ball screws and nuts.

Keep your ball screw spinning without the ball nut damaging your system. When the ball nut reaches the stop pin at either end of the ball screw, it disengages and begins to idle.

Mount these two-piece collars anywhere on an Acme lead screw without removing components.

A set of ball bearings reduces friction and secures the end of a metric ball or lead screw.