Key Screws | McMaster-Carr

Filter by

System of Measurement

Thread Size

Length

Material

Stainless Steel

Fastener Head Type

Drive Style

Drilled Spanner

External Pentagon

Hex with Pilot Recess

Tamper-Resistant Hex

Tamper-Resistant Torx

Tamper-Resistant Torx Plus

Finish

Titanium Carbon Nitride (TiCN) Coated

Zinc Flake Coated

Zinc Yellow-Chromate Plated

Socket Head Profile

Threading

Partially Threaded

Shoulder Length

Shoulder Diameter

Head Diameter

Drive Size

Head Height

Thread Type

Thread Pitch

Tip Type

Thread Direction

Thread Spacing

Specifications Met

Federal Specification

Thread Length

Tensile Strength

Less than 20,000 psi

20,000 psi to 49,999 psi

50,000 psi to 69,999 psi

70,000 psi to 99,999 psi

100,000 psi or greater

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

How can we improve?

25,207 Products

Fastening and Joining

Socket Head Screws

Socket Head Screws

With a deeper drive than flat and rounded head screws, these withstand more torque for a tighter hold

Set Screws

Exert pressure at the tip to hold parts in place, unlike screws that hold material together with threads

Tighten and loosen by hand without the need for tools

Shoulder Screws

Shoulder Screws

Rotate parts around the cylinder under the head to guide and align them during installation

Pentagon Head Screws

Pentagon Head Screws

Create a tamper-resistant joint with a head than can only be removed with a 5-point socket

Fastener Assortments

Fastener Assortments

Stay prepared by keeping fasteners in common sizes and materials on hand

Rounded Head Screws

Rounded Head Screws

Sit just above the surface for a low-profile finish and hold tighter than flat head screws

Tapping Screws

Fasten a range of materials together without needing to tap the hole first

Plow Bolts

The head sits flush with countersunk holes while the bolt stays in place when tightening a nut

Flat Head Screws

Flat Head Screws

Fit in countersunk holes for a flush finish

Binding Barrels and Screws

Binding Barrels and Screws

Thread together for a low-profile fastener

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)