Featured Categories

  • Tools & Machining
  • Shipping, Packaging & Office Supplies
  • Plumbing
  • Safety

Shop Categories

  • Abrasives & Polishers
  • Adhesives & Tapes
  • Electrical Supplies
  • Electronics
  • Fasteners
  • Food Service & Restaurant Supplies
  • Furniture, Linens & Decor
  • Grounds & Outdoor
  • Hardware & Building Materials
  • Heating & Cooling
  • Janitorial & Cleaning Supplies
  • Lab Equipment & Supplies
  • Lighting
  • Material Handling
  • Medical & Personal Care
  • Paint, Coatings & Supplies
  • Plumbing
  • Power Transmission
  • Pumps
  • Raw Materials
  • Safety
  • Shipping, Packaging & Office Supplies
  • Storage & Workspace
  • Test Instruments & Gauges
  • Tools & Machining
  • Vehicle Maintenance
  • Welding, Soldering & Brazing
  • About Us
  • Deals
  • Contact Us
Added to Cart
Skip to Main Content
FREE SHIPPING on orders over $50 after you . Restrictions Apply
Zoro Homepage
Close icon
Clipboard Icon Clipboard Icon Quick Order
User Headset Icon User Headset Icon Customer Service
Cart Icon
0
Cart Icon
0
Cart
  • Low prices on everyday needs. Shop Zoro Select
  • Don't miss these limited time offers. Shop All Deals
  • Get 30 days to pay with Net 30. Apply Now
  1. Home
  2. /
  3. Fasteners
  4. /
  5. Nuts
  6. /
  7. Square Nuts

Square Nuts (442 items) - Page 4

Zoro Select 7/8-9 HEAVY SQUARE NUT PLAIN, PK100 87NQHP
Zoro Select

7/8-9 HEAVY SQUARE NUT PLAIN, PK100

Zoro # G2447844
Mfr # 87NQHP
product price:  $178.99
/pk 100, $1.79/ea
Zoro Select M4-0.7 DIN562 THIN SQUARE NUT A2 STAINLESS STEEL, PK4000 M4D562A2
Zoro Select

M4-0.7 DIN562 THIN SQUARE NUT A2 STAINLESS STEEL, PK4000

Zoro # G9081985
Mfr # M4D562A2
product price:  $181.99
/pk 4000, $0.05/ea
Zoro Select 10-24 SQUARE MS NUT ZINC, PK5000 10NQ
Zoro Select

10-24 SQUARE MS NUT ZINC, PK5000

Zoro # G2447485
Mfr # 10NQ
product price:  $171.99
/pk 5000, $0.03/ea
Zoro Select 1/2-13 SQUARE NUT REGULAR ZINC, PK300 50NQR
Zoro Select

1/2-13 SQUARE NUT REGULAR ZINC, PK300

Zoro # G2448194
Mfr # 50NQR
product price:  $117.99
/pk 300, $0.39/ea
Zoro Select No 8-32 Steel Zinc Plated Finish Machine Screw Square Nut, 7500 PK SQMSNI20-80-7500BX
Zoro Select

No 8-32 Steel Zinc Plated Finish Machine Screw Square Nut, 7500 PK

Zoro # G8436337
Mfr # SQMSNI20-80-7500BX
product price:  $132.99
/pk 7500, $0.02/ea
Zoro Select 10-32 SQUARE MS NUT ZINC, PK5000 11NQ
Zoro Select

10-32 SQUARE MS NUT ZINC, PK5000

Zoro # G2447670
Mfr # 11NQ
product price:  $156.99
/pk 5000, $0.03/ea
Zoro Select 5/16"-18 Low Carbon Steel Plain Finish Square Nut - Heavy, 50 pk. U11121.031.0001
Zoro Select

5/16"-18 Low Carbon Steel Plain Finish Square Nut - Heavy, 50 pk.

Zoro # G3429417
Mfr # U11121.031.0001
product price:  $14.19
/pk 50, $0.28/ea
Zoro Select M5-0.8 DIN562 THIN SQUARE NUT A2 STAINLESS STEEL, PK3000 M5D562A2
Zoro Select

M5-0.8 DIN562 THIN SQUARE NUT A2 STAINLESS STEEL, PK3000

Zoro # G8538898
Mfr # M5D562A2
product price:  $144.99
/pk 3000, $0.05/ea
Boltsandnuts.Com 5 Pieces 1in-8 Steel Square Nuts Galvanized, 5PK 100CSQN2G-5
Boltsandnuts.Com

5 Pieces 1in-8 Steel Square Nuts Galvanized, 5PK

Zoro # G514424894
Mfr # 100CSQN2G-5
product price:  $31.99
/pk 5, $6.40/ea
Zoro Select M4-3.20 Low Carbon Steel Zinc Plated Finish Square Nut - Regular, 100 pk. M11140.040.0001
Zoro Select

M4-3.20 Low Carbon Steel Zinc Plated Finish Square Nut - Regular, 100 pk.

Zoro # G2650019
Mfr # M11140.040.0001
product price:  $8.39
/pk 100, $0.08/ea
Huyett Square Nut 1-1/8x1 Steel Plain NUTQ00-1125-10002P
Huyett

Square Nut 1-1/8x1 Steel Plain

Zoro # G613330744
Mfr # NUTQ00-1125-10002P
product price:  $2.85
/ea
Sold in mult. of 6 for $17.10
Huyett Square Nut 5/16x17/64 Steel Plain NUTQ00-0312-02652P
Huyett

Square Nut 5/16x17/64 Steel Plain

Zoro # G613331130
Mfr # NUTQ00-0312-02652P
product price:  $0.10
/ea
Sold in mult. of 182 for $18.20
Zoro Select 3/4"-10 Carbon Steel Plain Finish Square Nut - Heavy, 5 pk. U11122.075.0001
Zoro Select

3/4"-10 Carbon Steel Plain Finish Square Nut - Heavy, 5 pk.

Zoro # G3429371
Mfr # U11122.075.0001
product price:  $33.79
/pk 5, $6.76/ea
Boltsandnuts.Com 500 Pieces 3/8in-16 Steel Square Nuts Galvanized, 500PK 37CSQN2G-500
Boltsandnuts.Com

500 Pieces 3/8in-16 Steel Square Nuts Galvanized, 500PK

Zoro # G314461112
Mfr # 37CSQN2G-500
product price:  $164.99
/pk 500, $0.33/ea
Boltsandnuts.Com 25 Pieces 3/8in-16 Steel Square Nuts Galvanized, 25PK 37CSQN2G-25
Boltsandnuts.Com

25 Pieces 3/8in-16 Steel Square Nuts Galvanized, 25PK

Zoro # G914461024
Mfr # 37CSQN2G-25
product price:  $13.29
/pk 25, $0.53/ea
Boltsandnuts.Com 75 Pieces 1/4in-20 Steel Square Nuts Galvanized, 75PK 25CSQN2G-75
Boltsandnuts.Com

75 Pieces 1/4in-20 Steel Square Nuts Galvanized, 75PK

Zoro # G814449900
Mfr # 25CSQN2G-75
product price:  $14.99
/pk 75, $0.20/ea
Zoro Select 3/4"-10 Stainless Steel Plain Finish Square Nut - Regular, 5 pk. U51096.075.0001
Zoro Select

3/4"-10 Stainless Steel Plain Finish Square Nut - Regular, 5 pk.

Zoro # G3429441
Mfr # U51096.075.0001
product price:  $73.69
/pk 5, $14.74/ea
Boltsandnuts.Com 35 Pieces 5/16in-18 Steel Square Nuts Galvanized, 35PK 31CSQN2G-35
Boltsandnuts.Com

35 Pieces 5/16in-18 Steel Square Nuts Galvanized, 35PK

Zoro # G314447888
Mfr # 31CSQN2G-35
product price:  $14.15
/pk 35, $0.40/ea
Oxoxo 1/2-13 Regular Square Nut Hot Dipped Galvanized, 300PK 420725
Oxoxo

1/2-13 Regular Square Nut Hot Dipped Galvanized, 300PK

Zoro # G122687131
Mfr # 420725
product price:  $167.99
/pk 300, $0.56/ea
Boltsandnuts.Com 700 Pieces #10-24 Steel Square Nuts Zinc Clear, 700PK 10CSQN2Z-700
Boltsandnuts.Com

700 Pieces #10-24 Steel Square Nuts Zinc Clear, 700PK

Zoro # G114434095
Mfr # 10CSQN2Z-700
product price:  $48.95
/pk 700, $0.07/ea
Newport Fasteners 7/16"-14 Square Nuts Grade 2 Steel/Hot Dip Galvanized , 1000PK 444899-BR-1000
Newport Fasteners

7/16"-14 Square Nuts Grade 2 Steel/Hot Dip Galvanized , 1000PK

Zoro # G206368369
Mfr # 444899-BR-1000
product price:  $417.99
/pk 1000, $0.42/ea
Newport Fasteners 1-8 Regular Square Nuts/Grade 2/Hot Dip Galvanized , 125PK NB238046B-125
Newport Fasteners

1-8 Regular Square Nuts/Grade 2/Hot Dip Galvanized , 125PK

Zoro # G906368379
Mfr # NB238046B-125
product price:  $434.99
/pk 125, $3.48/ea
Newport Fasteners 3/4"-10 Square Nuts Grade 2 Steel/Zinc Plated , 250PK 629022-BR-250
Newport Fasteners

3/4"-10 Square Nuts Grade 2 Steel/Zinc Plated , 250PK

Zoro # G806368257
Mfr # 629022-BR-250
product price:  $320.99
/pk 250, $1.28/ea
Newport Fasteners 1/4-20 Regular Square Nuts/Steel/Hot Dip Galvanized , 2000PK 242317
Newport Fasteners

1/4-20 Regular Square Nuts/Steel/Hot Dip Galvanized , 2000PK

Zoro # G906368270
Mfr # 242317
product price:  $303.99
/pk 2000, $0.15/ea
Newport Fasteners 8-32 Heavy Hex Nuts/Steel/Zinc , 200PK NB298034P-200
Newport Fasteners

8-32 Heavy Hex Nuts/Steel/Zinc , 200PK

Zoro # G906368317
Mfr # NB298034P-200
product price:  $35.99
/pk 200, $0.18/ea
Newport Fasteners 7/16"-14 Square Nuts Grade 2 Steel/Zinc Plated , 1000PK 830503-BR-1000
Newport Fasteners

7/16"-14 Square Nuts Grade 2 Steel/Zinc Plated , 1000PK

Zoro # G506368373
Mfr # 830503-BR-1000
product price:  $440.99
/pk 1000, $0.44/ea
Newport Fasteners 1/4-20 Square Machine Screw Nuts/Steel/Zinc , 4000PK NB298046B-4000
Newport Fasteners

1/4-20 Square Machine Screw Nuts/Steel/Zinc , 4000PK

Zoro # G806368295
Mfr # NB298046B-4000
product price:  $284.99
/pk 4000, $0.07/ea
Newport Fasteners 5/16"-18 Square Nuts Grade 2 Steel/Hot Dip Galvanized , 2500PK 239285-BR-2500
Newport Fasteners

5/16"-18 Square Nuts Grade 2 Steel/Hot Dip Galvanized , 2500PK

Zoro # G906368287
Mfr # 239285-BR-2500
product price:  $585.99
/pk 2500, $0.23/ea
Newport Fasteners 5/16-18 Square Machine Screw Nuts/18-8 Stainless Steel , 1000PK 387477
Newport Fasteners

5/16-18 Square Machine Screw Nuts/18-8 Stainless Steel , 1000PK

Zoro # G406368299
Mfr # 387477
product price:  $1,146.99
/pk 1000, $1.15/ea
Newport Fasteners 1/4-28 Square Machine Screw Nuts/Steel/Zinc , 3000PK 284554
Newport Fasteners

1/4-28 Square Machine Screw Nuts/Steel/Zinc , 3000PK

Zoro # G306368320
Mfr # 284554
product price:  $562.99
/pk 3000, $0.19/ea
Newport Fasteners 1/2"-13 Square Nuts Grade 2 Steel/Plain , 750PK 999385-BR-750
Newport Fasteners

1/2"-13 Square Nuts Grade 2 Steel/Plain , 750PK

Zoro # G906368355
Mfr # 999385-BR-750
product price:  $343.99
/pk 750, $0.46/ea
Newport Fasteners 1"-8 Square Nuts Grade 2 Steel/Zinc Plated , 125PK 608500-BR-125
Newport Fasteners

1"-8 Square Nuts Grade 2 Steel/Zinc Plated , 125PK

Zoro # G606368280
Mfr # 608500-BR-125
product price:  $480.99
/pk 125, $3.85/ea
Newport Fasteners M5-0.8 Thin Square Nuts/18-8 Stainless Steel/DIN 562 , 3000PK 808966
Newport Fasteners

M5-0.8 Thin Square Nuts/18-8 Stainless Steel/DIN 562 , 3000PK

Zoro # G706368326
Mfr # 808966
product price:  $424.99
/pk 3000, $0.14/ea
Huyett Square Nut 1/2x7/16 Steel Hot Dipped Galvanized NUTQ00-0500-04372G
Huyett

Square Nut 1/2x7/16 Steel Hot Dipped Galvanized

Zoro # G013331044
Mfr # NUTQ00-0500-04372G
product price:  $0.52
/ea
Sold in mult. of 33 for $17.16
Newport Fasteners 5/16-18 Regular Square Nuts/Grade 2/Hot Dip Galvanized , 2500PK NB238030B-2500
Newport Fasteners

5/16-18 Regular Square Nuts/Grade 2/Hot Dip Galvanized , 2500PK

Zoro # G206368291
Mfr # NB238030B-2500
product price:  $436.99
/pk 2500, $0.17/ea
Newport Fasteners 1 1/8-7 Regular Square Nuts/Steel/Zinc , 30PK 771998
Newport Fasteners

1 1/8-7 Regular Square Nuts/Steel/Zinc , 30PK

Zoro # G806368301
Mfr # 771998
product price:  $142.99
/pk 30, $4.77/ea
Square Nuts (442 items) - Page 4
  • First
  • Previous
  • 4
    of 13 pages
  • Next
  • Last
How was your search?

About Square Nuts

Square Nuts are a type of fastener commonly used in industrial and construction applications. Square Nuts are typically threaded and designed to be secured to a bolt, threaded rod, or other fasteners to create a secure connection between two pieces of material.

Types of Square Nuts

Square Nuts come in several sizes and shapes including square nuts with flanges, and hexagonal square nuts. Depending on the application, certain types of Square Nuts may be more suitable than others due to their different dimensions, threading patterns, or material compositions.

How Square Nuts are Made

Square Nuts are typically manufactured from steel alloys that can withstand high levels of stress and strain while also being corrosion resistant. Depending on the application they may be heat treated for additional strength or plated with zinc for added protection against rust.

Industries that use Square Nuts

Square Nuts are often used in automotive repair shops when replacing brakes or shock absorbers. They're also frequently used by construction professionals when installing decking boards or railing systems. Finally, they’re commonly used by electricians when mounting electrical boxes onto walls using square threaded rods and nuts.

Find the Square Nuts You Need at Zoro

Looking for a specific item? Use our robust search tool to find it by name or keyword, or use our handy filters to narrow down our full assortment. You can also check out our whole selection of fasteners, along with other tools or supplies to ensure you have all you need to tackle the job, especially if you're taking on a DIY project for the first time.
Plus, when you shop at Zoro, you'll always enjoy competitive prices on tons of great brands you know and trust. We make the shopping experience as fast and seamless as possible with free shipping on orders over $50 for registered users, Net 30 payment terms for qualifying customers, and an unparalleled customer service experience.

Related Categories

Hex NutsLock NutsSpring Nuts & Cage NutsWing NutsGeneral Washers
Hex Head Cap ScrewsMachine ScrewsLock WashersFully-Threaded Rods & StudsExternal Retaining Rings
1/4-20 stainless steel nuts3/8 galvanized nut1/2-13 square nut1/4-20 stainless steel nutvinyl ester resin
1/2 square nut5/8-11 hex nutsfine thread nutssquare nut1/4-20 square nut

Sign up and save

Take 10% off your next order when you sign up for Zoro emails. Subscribe now to receive your promo code via email.

Follow us

  • Facebook
  • YouTube
  • LinkedIn
  • Instagram
Every part plays a part

Information

  • About Us
  • Accessibility
  • Careers
  • Inclusion
  • Giving Back
  • Resource Hub
  • Returns
  • Shipping

Shopping

  • Brands
  • Collections
  • My Account
  • Payments
  • Deals
  • Sitemap
  • Track My Order

Services

  • Customer Service
  • FAQs
  • Net 30 Terms
  • Reseller Program
  • Sell on Zoro
  • Participate in Research

Zoro, Inc

Connect

Customer service from real people

  • Phone: (855) 289-9676
  • Contact Us

© 2011-2026 Zoro Tools, Inc. All rights reserved.
  • Terms & Conditions
  • Terms of Access
  • Privacy Policy
Zoro, Inc