MRO Hardware | The Online Hardware Store

MRO Hardware

77 Circle Freeway Drive
Cincinnati, OH 45246

24 Hour Live Sales Support

Toll Free: 855-251-9785
Email: mrosales@askmonroe.com

Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors
Support
Sign In
Cart
Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors
Skip to content
  • Home
  • About
  • Products
  • Quality
  • Blog
  • Contact
Products / Misc. Fasteners / Socket Head Cap Screws

Socket Head Cap Screws

MRO Hardware is your source for socket head cap screws. Available in multiple sizes, threads, and finishes; we have the fasteners you need in stock and ready to ship. We carry socket head cap screws in stainless steel, zinc, and low carbon steel.

Socket head cap screws, also known as Allen bolts, are high-strength fasteners known for their reliability and precision. Featuring a cylindrical head with a hexagonal recess, these screws are designed for use with an Allen wrench or hex key, providing a secure and tight fit. Socket head cap screws are favored for their ability to handle high torque and their clean, professional appearance, making them indispensable in various industrial and mechanical applications.

Our inventory grows regularly, so if you don’t see the socket head cap screws you need or are unsure what socket head cap screws fastener is right for your application, give us a call at 1-800-783-0910.

  • 1/2-13 Socket Head Cap Screws

    1/2-13 Socket Head Cap Screws

  • 1/2-20 Socket Head Cap Screws

    1/2-20 Socket Head Cap Screws

  • 1/4-20 Socket Head Cap Screws

    1/4-20 Socket Head Cap Screws

  • 1/4-28 Socket Head Cap Screws

    1/4-28 Socket Head Cap Screws

  • 10-24 Socket Head Cap Screws

    10-24 Socket Head Cap Screws

  • 10-32 Socket Head Cap Screws

    10-32 Socket Head Cap Screws

  • 2-56 Socket Head Cap Screws

    2-56 Socket Head Cap Screws

  • 3/4-10 Socket Head Cap Screws

    3/4-10 Socket Head Cap Screws

  • 3/8-16 Socket Head Cap Screws

    3/8-16 Socket Head Cap Screws

  • 3/8-24 Socket Head Cap Screws

    3/8-24 Socket Head Cap Screws

  • 4-40 Socket Head Cap Screws

    4-40 Socket Head Cap Screws

  • 5/16-18 Socket Head Cap Screws

    5/16-18 Socket Head Cap Screws

  • 5/16-24 Socket Head Cap Screws

    5/16-24 Socket Head Cap Screws

  • 5/8-11 Socket Head Cap Screws

    5/8-11 Socket Head Cap Screws

  • 5/8-18 Socket Head Cap Screws

    5/8-18 Socket Head Cap Screws

  • 6-32 Socket Head Cap Screws

    6-32 Socket Head Cap Screws

  • 7/16-14 Socket Head Cap Screws

    7/16-14 Socket Head Cap Screws

  • 7/16-20 Socket Head Cap Screws

    7/16-20 Socket Head Cap Screws

  • 8-32 Socket Head Cap Screws

    8-32 Socket Head Cap Screws

  • M10 x 1.50 Socket Head Cap Screws

    M10 x 1.50 Socket Head Cap Screws

  • M12 x 1.75 Socket Head Cap Screws

    M12 x 1.75 Socket Head Cap Screws

  • M3 x 0.50 Socket Head Cap Screws

    M3 x 0.50 Socket Head Cap Screws

  • M4 x 0.70 Socket Head Cap Screws

    M4 x 0.70 Socket Head Cap Screws

  • M5 x 0.80 Socket Head Cap Screws

    M5 x 0.80 Socket Head Cap Screws

  • M6 x 1.00 Socket Head Cap Screws

    M6 x 1.00 Socket Head Cap Screws

  • M8 x 1.25 Socket Head Cap Screws

    M8 x 1.25 Socket Head Cap Screws

  • Material

    • Alloy Steel (340)
  • Thread Length

    • 0.125 (2)
    • 0.1875 (2)
    • 0.25 (7)
    • 0.3125 (3)
    • 0.375 (9)
    • 0.5 (14)
    • 0.5625 (1)
    • 0.625 (13)
    • 0.75 (14)
    • 0.875 (21)
    • 1 (28)
    • 1.125 (19)
    • 1.25 (26)
    • 1.375 (13)
    • 1.5 (24)
    • 1.625 (4)
    • 1.75 (15)
    • 1.875 (1)
    • 10 (5)
    • 100 (4)
    • 12 (6)
    • 16 (6)
    • 2 (11)
    • 2.25 (7)
    • 2.5 (2)
    • 2.75 (2)
    • 20 (7)
    • 25 (7)
    • 30 (7)
    • 35 (7)
    • 40 (6)
    • 45 (6)
    • 5 (2)
    • 50 (6)
    • 55 (4)
    • 6 (2)
    • 60 (4)
    • 65 (4)
    • 70 (4)
    • 75 (3)
    • 8 (4)
    • 80 (4)
    • 90 (4)
  • Length

    • 0.125 (2)
    • 0.1875 (2)
    • 0.25 (7)
    • 0.3125 (3)
    • 0.375 (9)
    • 0.5 (14)
    • 0.5625 (1)
    • 0.625 (13)
    • 0.75 (13)
    • 0.875 (12)
    • 1 (17)
    • 1.125 (1)
    • 1.25 (18)
    • 1.5 (17)
    • 1.75 (16)
    • 10 (5)
    • 100 (4)
    • 12 (6)
    • 16 (6)
    • 2 (17)
    • 2.25 (14)
    • 2.5 (16)
    • 2.75 (9)
    • 20 (7)
    • 25 (7)
    • 3 (11)
    • 3.25 (7)
    • 3.5 (8)
    • 3.75 (4)
    • 30 (7)
    • 35 (7)
    • 4 (7)
    • 40 (6)
    • 45 (6)
    • 5 (2)
    • 50 (6)
    • 55 (4)
    • 6 (2)
    • 60 (4)
    • 65 (4)
    • 70 (4)
    • 75 (3)
    • 8 (4)
    • 80 (4)
    • 90 (4)
  • Finish

    • Black Oxide (4)
    • Plain (335)
    • Zinc (1)
  • Thread

    • 16-Jul (22)
    • 16-May (30)
    • 2-Jan (25)
    • 24/10 (15)
    • 4-Jan (31)
    • 4-Mar (12)
    • 8-Mar (30)
    • 8-May (20)
    • Apr-40 (10)
    • Aug-32 (13)
    • Feb-56 (4)
    • Jun-32 (11)
    • M10 x 1.50 (17)
    • M12 x 1.75 (15)
    • M3 x 0.50 (10)
    • M4 x 0.70 (13)
    • M5 x 0.80 (11)
    • M6 x 1.00 (19)
    • M8 x 1.25 (17)
    • Oct-32 (15)
  • Product categories

    • Abrasives
    • Casters
    • Catches and Latches
    • Closeout Hardware
    • Door Checks
    • Door Panel Locks and Latches
    • Drawer Slides
    • Gas Springs
    • Handles
    • Hinges
    • Industrial Knobs
    • Misc. Fasteners
      • Acorn Cap Nuts
      • Socket Head Cap Screws
        • 1/2-13 Socket Head Cap Screws
        • 1/2-20 Socket Head Cap Screws
        • 1/4-20 Socket Head Cap Screws
        • 1/4-28 Socket Head Cap Screws
        • 10-24 Socket Head Cap Screws
        • 10-32 Socket Head Cap Screws
        • 2-56 Socket Head Cap Screws
        • 3/4-10 Socket Head Cap Screws
        • 3/8-16 Socket Head Cap Screws
        • 3/8-24 Socket Head Cap Screws
        • 4-40 Socket Head Cap Screws
        • 5/16-18 Socket Head Cap Screws
        • 5/16-24 Socket Head Cap Screws
        • 5/8-11 Socket Head Cap Screws
        • 5/8-18 Socket Head Cap Screws
        • 6-32 Socket Head Cap Screws
        • 7/16-14 Socket Head Cap Screws
        • 7/16-20 Socket Head Cap Screws
        • 8-32 Socket Head Cap Screws
        • M10 x 1.50 Socket Head Cap Screws
        • M12 x 1.75 Socket Head Cap Screws
        • M3 x 0.50 Socket Head Cap Screws
        • M4 x 0.70 Socket Head Cap Screws
        • M5 x 0.80 Socket Head Cap Screws
        • M6 x 1.00 Socket Head Cap Screws
        • M8 x 1.25 Socket Head Cap Screws
      • Socket Head Shoulder Screws
      • Tee Nuts
      • Thumb Screws
      • Wing Nuts
      • Wing Screws
    • Misc. Hardware
    • Paneloc Slam & Bolt Latches
    • Pins & Plungers
    • Rivet Nuts
    • Rivets
    • Safety
    • Self Clinching Fasteners
    • Tooling
    • Weld Fasteners
  • PRIVACY POLICY

    We use cookies to improve your experience. By your continued use of this site you accept such use. For more information, please see our privacy policy.
  • LATEST NEWS

    Want to read the latest news from MRO Hardware? Click Here
  • MRO Hardware
  • LOCATIONS

    MRO Hardware

    77 Circle Freeway Drive
    Cincinnati, OH 45246

    3721 Northridge Drive NW,
    Suite 40
    Walker, MI 49544

    1450 Radisson St.
    Green Bay WI, 54302

    See All OneMonroe Locations
  • CONTACT US

    855-251-9785
    mrosales@askmonroe.com
  • Home
  • About
  • Products
  • Brands
  • Applications
  • Quality
  • Blog
  • FAQ
  • Contact
  • Privacy Policy
  • Terms and Conditions
  • Supplier Terms
  • Prop 65
© Copyright 2025. All Rights Reserved.

MRO Hardware Support