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Square Nuts (414 items)

Zoro Select No 10-24 Steel Zinc Plated Finish Machine Screw Square Nut, 100 PK SQMSNI2-100-100BX
Zoro Select

No 10-24 Steel Zinc Plated Finish Machine Screw Square Nut, 100 PK

Zoro # G0848382
Mfr # SQMSNI2-100-100BX
product price:  $5.29
/pk 100, $0.05/ea
Zoro Select 1/2"-13 Low Carbon Steel Plain Finish Square Nut - Regular, 50 pk. U11120.050.0001
Zoro Select

1/2"-13 Low Carbon Steel Plain Finish Square Nut - Regular, 50 pk.

Zoro # G3429618
Mfr # U11120.050.0001
product price:  $13.89
/pk 50, $0.28/ea
Zoro Select 1/4"-20 Steel Zinc Plated Finish Machine Screw Square Nut, 100 pk. SQMSNI20250-100BX
Zoro Select

1/4"-20 Steel Zinc Plated Finish Machine Screw Square Nut, 100 pk.

Zoro # G2206461
Mfr # SQMSNI20250-100BX
product price:  $8.15
/pk 100, $0.08/ea
Zoro Select 3/8"-16 Low Carbon Steel Plain Finish Square Nut - Regular, 100 pk. U11120.037.0001
Zoro Select

3/8"-16 Low Carbon Steel Plain Finish Square Nut - Regular, 100 pk.

Zoro # G3429627
Mfr # U11120.037.0001
product price:  $15.79
/pk 100, $0.16/ea
Zoro Select No 6-32 Stainless Steel Plain Finish Square Nut - Regular, 50 PK U51096.013.0001
Zoro Select

No 6-32 Stainless Steel Plain Finish Square Nut - Regular, 50 PK

Zoro # G2530626
Mfr # U51096.013.0001
product price:  $6.85
/pk 50, $0.14/ea
Zoro Select 3/4"-10 Low Carbon Steel Plain Finish Square Nut - Regular, 10 pk. U11120.075.0001
Zoro Select

3/4"-10 Low Carbon Steel Plain Finish Square Nut - Regular, 10 pk.

Zoro # G3429590
Mfr # U11120.075.0001
product price:  $9.29
/pk 10, $0.93/ea
Zoro Select 5/16"-18 Low Carbon Steel Plain Finish Square Nut - Regular, 100 pk. U11120.031.0001
Zoro Select

5/16"-18 Low Carbon Steel Plain Finish Square Nut - Regular, 100 pk.

Zoro # G3429636
Mfr # U11120.031.0001
product price:  $11.99
/pk 100, $0.12/ea
Zoro Select 1/4"-20 Stainless Steel Plain Finish Square Nut - Regular, 25 pk. U51096.025.0001
Zoro Select

1/4"-20 Stainless Steel Plain Finish Square Nut - Regular, 25 pk.

Zoro # G3429505
Mfr # U51096.025.0001
product price:  $7.15
/pk 25, $0.29/ea
Zoro Select No 8-32 Steel Zinc Plated Finish Machine Screw Square Nut, 100 PK SQMSNI20-80-100BX
Zoro Select

No 8-32 Steel Zinc Plated Finish Machine Screw Square Nut, 100 PK

Zoro # G3150271
Mfr # SQMSNI20-80-100BX
product price:  $6.29
/pk 100, $0.06/ea
Zoro Select 1"-8 Low Carbon Steel Plain Finish Square Nut - Regular, 5 pk. U11120.100.0001
Zoro Select

1"-8 Low Carbon Steel Plain Finish Square Nut - Regular, 5 pk.

Zoro # G3429575
Mfr # U11120.100.0001
product price:  $10.49
/pk 5, $2.10/ea
Zoro Select 1/2"-13 Stainless Steel Plain Finish Square Nut - Regular, 10 pk. U51096.050.0001
Zoro Select

1/2"-13 Stainless Steel Plain Finish Square Nut - Regular, 10 pk.

Zoro # G3429469
Mfr # U51096.050.0001
product price:  $24.55
/pk 10, $2.46/ea
Zoro Select No 12-24 Low Carbon Steel Zinc Plated Finish Square Nut - Regular, 100 PK U11140.021.0001
Zoro Select

No 12-24 Low Carbon Steel Zinc Plated Finish Square Nut - Regular, 100 PK

Zoro # G3429791
Mfr # U11140.021.0001
product price:  $7.69
/pk 100, $0.08/ea
Zoro Select 1/4"-20 Low Carbon Steel Zinc Plated Finish Square Nut - Regular, 100 pk. U11140.025.0001
Zoro Select

1/4"-20 Low Carbon Steel Zinc Plated Finish Square Nut - Regular, 100 pk.

Zoro # G3429785
Mfr # U11140.025.0001
product price:  $6.99
/pk 100, $0.07/ea
Zoro Select 5/16"-18 Low Carbon Steel Zinc Plated Finish Square Nut - Regular, 100 pk. U11140.031.0001
Zoro Select

5/16"-18 Low Carbon Steel Zinc Plated Finish Square Nut - Regular, 100 pk.

Zoro # G3429776
Mfr # U11140.031.0001
product price:  $9.99
/pk 100, $0.10/ea
Zoro Select 5/16"-18 Stainless Steel Plain Finish Square Nut - Regular, 25 pk. U51096.031.0001
Zoro Select

5/16"-18 Stainless Steel Plain Finish Square Nut - Regular, 25 pk.

Zoro # G3429496
Mfr # U51096.031.0001
product price:  $8.19
/pk 25, $0.33/ea
Zoro Select 1/4"-20 Low Carbon Steel Plain Finish Square Nut - Regular, 100 pk. U11120.025.0001
Zoro Select

1/4"-20 Low Carbon Steel Plain Finish Square Nut - Regular, 100 pk.

Zoro # G3429645
Mfr # U11120.025.0001
product price:  $6.39
/pk 100, $0.06/ea
Zoro Select 5/8"-11 Low Carbon Steel Plain Finish Square Nut - Regular, 25 pk. U11120.062.0001
Zoro Select

5/8"-11 Low Carbon Steel Plain Finish Square Nut - Regular, 25 pk.

Zoro # G3429609
Mfr # U11120.062.0001
product price:  $14.29
/pk 25, $0.57/ea
Zoro Select No 8-32 Low Carbon Steel Zinc Plated Finish Square Nut - Regular, 100 PK U11140.016.0001
Zoro Select

No 8-32 Low Carbon Steel Zinc Plated Finish Square Nut - Regular, 100 PK

Zoro # G3429819
Mfr # U11140.016.0001
product price:  $6.55
/pk 100, $0.07/ea
Zoro Select 3/8"-16 Stainless Steel Plain Finish Square Nut - Regular, 25 pk. U51096.037.0001
Zoro Select

3/8"-16 Stainless Steel Plain Finish Square Nut - Regular, 25 pk.

Zoro # G3429487
Mfr # U51096.037.0001
product price:  $18.89
/pk 25, $0.76/ea
Zoro Select 3/8"-16 Steel Zinc Plated Finish Machine Screw Square Nut, 100 pk. SQMSNI20370-100BX
Zoro Select

3/8"-16 Steel Zinc Plated Finish Machine Screw Square Nut, 100 pk.

Zoro # G2006243
Mfr # SQMSNI20370-100BX
product price:  $13.39
/pk 100, $0.13/ea
Zoro Select 6.3 mm White Plastic License Plate Nuts, 50 pk. 1228PK
Zoro Select

6.3 mm White Plastic License Plate Nuts, 50 pk.

Zoro # G5104197
Mfr # 1228PK
product price:  $7.29
/pk 50, $0.15/ea
Zoro Select 5/8"-11 Steel Zinc Plated Finish Square Nut - Regular, 25 pk. SQNI20620-025BX
Zoro Select

5/8"-11 Steel Zinc Plated Finish Square Nut - Regular, 25 pk.

Zoro # G1131234
Mfr # SQNI20620-025BX
product price:  $10.75
/pk 25, $0.43/ea
Zoro Select 7/8"-9 Low Carbon Steel Zinc Plated Finish Square Nut - Regular, 5 pk. U11140.087.0001
Zoro Select

7/8"-9 Low Carbon Steel Zinc Plated Finish Square Nut - Regular, 5 pk.

Zoro # G3429715
Mfr # U11140.087.0001
product price:  $7.89
/pk 5, $1.58/ea
Boltsandnuts.Com 5 Pieces 3/4in-10 Steel Square Nuts Galvanized, 5PK 75CSQN2G-5
Boltsandnuts.Com

5 Pieces 3/4in-10 Steel Square Nuts Galvanized, 5PK

Zoro # G414466093
Mfr # 75CSQN2G-5
product price:  $12.79
/pk 5, $2.56/ea
Zoro Select 1/2"-13 Steel Zinc Plated Finish Square Nut - Regular, 50 pk. SQNI20500-050BX
Zoro Select

1/2"-13 Steel Zinc Plated Finish Square Nut - Regular, 50 pk.

Zoro # G1664363
Mfr # SQNI20500-050BX
product price:  $13.19
/pk 50, $0.26/ea
Zoro Select 3/4"-10 Steel Zinc Plated Finish Square Nut - Regular, 20 pk. SQNI20750-020BX
Zoro Select

3/4"-10 Steel Zinc Plated Finish Square Nut - Regular, 20 pk.

Zoro # G1918305
Mfr # SQNI20750-020BX
product price:  $13.89
/pk 20, $0.69/ea
Zoro Select 1"-8 Low Carbon Steel Plain Finish Square Nut - Heavy U11121.100.0001
Zoro Select

1"-8 Low Carbon Steel Plain Finish Square Nut - Heavy

Zoro # G2530538
Mfr # U11121.100.0001
product price:  $7.15
/ea
Zoro Select 1/2-13 HEAVY SQUARE NUT PLAIN, PK300 50NQHP
Zoro Select

1/2-13 HEAVY SQUARE NUT PLAIN, PK300

Zoro # G2447914
Mfr # 50NQHP
product price:  $164.99
/pk 300, $0.55/ea
Zoro Select 3/8"-16 Steel Hot Dip Galvanized Finish Square Nut - Regular, 100 pk. SQNI2037G-100BX
Zoro Select

3/8"-16 Steel Hot Dip Galvanized Finish Square Nut - Regular, 100 pk.

Zoro # G0882296
Mfr # SQNI2037G-100BX
product price:  $14.49
/pk 100, $0.14/ea
Zoro Select 3/4-10 HEAVY SQUARE NUT PLAIN, PK100 75NQHP
Zoro Select

3/4-10 HEAVY SQUARE NUT PLAIN, PK100

Zoro # G2447783
Mfr # 75NQHP
product price:  $214.99
/pk 100, $2.15/ea
Newport Fasteners 1/4-20 Regular Square Nuts/Grade 2/Hot Dip Galvanized , 250PK NB238028P-250
Newport Fasteners

1/4-20 Regular Square Nuts/Grade 2/Hot Dip Galvanized , 250PK

Zoro # G006368248
Mfr # NB238028P-250
product price:  $69.29
/pk 250, $0.28/ea
Zoro Select 1/4"-20 Steel Zinc Plated Finish Square Nut - Regular, 100 pk. SQNI20250-100BX
Zoro Select

1/4"-20 Steel Zinc Plated Finish Square Nut - Regular, 100 pk.

Zoro # G2325845
Mfr # SQNI20250-100BX
product price:  $8.29
/pk 100, $0.08/ea
Zoro Select 4.2 mm Nylon Side Marker Light Nuts, 50 pk. 1577PK
Zoro Select

4.2 mm Nylon Side Marker Light Nuts, 50 pk.

Zoro # G5102641
Mfr # 1577PK
product price:  $11.25
/pk 50, $0.23/ea
Boltsandnuts.Com 15 Pieces 1/2in-13 Steel Square Nuts Galvanized, 15PK 50CSQN2G-15
Boltsandnuts.Com

15 Pieces 1/2in-13 Steel Square Nuts Galvanized, 15PK

Zoro # G414461647
Mfr # 50CSQN2G-15
product price:  $15.69
/pk 15, $1.05/ea
Zoro Select 3/4"-10 Low Carbon Steel Zinc Plated Finish Square Nut - Regular, 10 pk. U11140.075.0001
Zoro Select

3/4"-10 Low Carbon Steel Zinc Plated Finish Square Nut - Regular, 10 pk.

Zoro # G3429721
Mfr # U11140.075.0001
product price:  $8.29
/pk 10, $0.83/ea
Zoro Select 1/2"-13 Low Carbon Steel Plain Finish Square Nut - Heavy, 25 pk. U11121.050.0001
Zoro Select

1/2"-13 Low Carbon Steel Plain Finish Square Nut - Heavy, 25 pk.

Zoro # G3429399
Mfr # U11121.050.0001
product price:  $22.79
/pk 25, $0.91/ea
Square Nuts (414 items)
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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 NutsFlange NutsCoupling NutsGeneral Washers
Machine ScrewsLock WashersHex Head Cap ScrewsFully-Threaded Rods & StudsHollow Wall Anchors
1/2-13 square nut10-24 square nut1/2-13 galvanized nut1/2-13 hex nuts10-32 hex nuts
1/2 square nut1/4-20 square nut1 1/2 nuts1/4-20 stainless steel nut1-1/4"-7 nut

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