Cap Screws | McMaster-Carr

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System of Measurement

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Material

Aluminum Oxide Ceramic

Stainless Steel

Threading

Partially Threaded

Finish

Corrosion-Resistant Coated

Hot-Dipped Galvanized

Phosphate Coated

Zinc Flake Coated

Zinc Yellow-Chromate Plated

Socket Head Profile

Head Height

Head Diameter

Thread Type

Thread Direction

Thread Pitch

Fastener Strength Grade/Class

ASTM Grade A325

ASTM Grade A490

Thread Spacing

Specifications Met

Federal Specification

Drive Size

Tensile Strength

Less than 20,000 psi

20,000 psi to 39,999 psi

40,000 psi to 59,999 psi

60,000 psi to 99,999 psi

100,000 psi or greater

Rounded Head Style

Head Width

Screw Size

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

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34,471 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

Hex Head Screws

Hex Head Screws

Used with nuts to create a stronger joint than flat and rounded screws

Rounded Head Screws

Rounded Head Screws

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

10,403 products

Flat Head Screws

Flat Head Screws

Fit in countersunk holes for a flush finish

12-Point Screws

12-Point Screws

12 contact points handle more torque than a hex head while a flange eliminates the need for a washer

Fastener Assortments

Fastener Assortments

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

Captive Panel Screws

Captive Panel Screws

Secure panels and enclosures while still having access to them

Square Head Screws

Square Head Screws

Turn the large flat sides with a wrench into square holes that stop further rotation

Pentagon Head Screws

Pentagon Head Screws

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

Standoff Caps

Create a finished look on standoffs and protect them from dirt and debris

Building and Machinery Hardware

Protective Caps

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

Protective Plugs

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

Communication

Reference Charts

Reference Charts

Check decimal equivalents, drill sizes, or specifications for socket screws

Fabricating and Machining

T-Tracks

Add fixturing to flat surfaces on machines such as table saws, CNC routers, and drill presses

Facility and Grounds Maintenance

Toilet Seat Fasteners

Toilet Seat Fasteners

Secure toilet seat hinges to your toilet bowl

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