Locknuts

Product View:
Items per page: 30 60 90
Sort:
Filter
  • Show More
  • Show Less
  • Show More
  • Show Less
  • Show More
  • Show Less
  • Show More
  • Show Less
  • Show More
  • Show Less
Filter
  • Show More
  • Show Less
  • Show More
  • Show Less
  • Show More
  • Show Less
  • Show More
  • Show Less
  • Show More
  • Show Less
Sort By
  Recommended
  Name A-Z
  Name Z-A
52 results
Grade 8 Nylon Insert Lock Nuts - Coarse Thread (USS)
Grade 8 Nylon Insert Lock Nuts - Coarse Thread (USS)
Pairing with Grade 8 bolts (6 dots/double notched corners), these zinc-yellow nuts have a purple nylon collar to lock vibration up to 250°F. The 360° locking ring prevents thread galling and allows easy adjustments. Perfect for heavy-duty fastener assemblies.
Diameter Thread Size Width Across Flats Height Material Finish Package Qty Item #
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
1/4"
1/4"-20
7/16"
5/16"
Carbon Steel
Yellow Zinc Plated
50
Log in to view price
5/16"
5/16"-18
1/2"
11/32"
Carbon Steel
Yellow Zinc Plated
50
Log in to view price
3/8"
3/4"-16
9/16"
29/64"
Carbon Steel
Yellow Zinc Plated
25
Log in to view price
7/16"
7/16"-14
5/8"
29/64"
Carbon Steel
Yellow Zinc Plated
25
Log in to view price
1/2"
1/2"-13
3/4"
19/32"
Carbon Steel
Yellow Zinc Plated
25
Log in to view price
9/16"
9/16"-12
7/8"
41/64"
Carbon Steel
Yellow Zinc Plated
25
Log in to view price
5/8"
5/8"-11
15/16"
3/4"
Carbon Steel
Yellow Zinc Plated
25
Log in to view price
3/4"
3/4"-10
1-1/16"
7/8"
Carbon Steel
Yellow Zinc Plated
10
Log in to view price
7/8"
7/8"-9
1-1/8"
63/64"
Carbon Steel
Yellow Zinc Plated
10
Log in to view price
1"
1"-8
1-7/16"
1-3/64"
Carbon Steel
Yellow Zinc Plated
10
Log in to view price
1-1/8"
1-1/8"-7
1-5/8"
1-11/64"
Carbon Steel
Yellow Zinc Plated
10
Log in to view price
1-1/4"
1-1/4"-7
1-13/16"
1-25/64"
Carbon Steel
Yellow Zinc Plated
10
Log in to view price
Grade 8 Nylon Insert Lock Nuts - Fine Thread (SAE)
Grade 8 Nylon Insert Lock Nuts - Fine Thread (SAE)
Built for Grade 8 applications (double notches or 6 dots), these nuts offer a purple nylon collar and are zinc-yellow plated to fight corrosion. They lock firmly at up to 250°F, ensuring a 360° hold. Ideal for high-strength, vibration-prone assemblies.
Diameter Thread Size Width Across Flats Height Material Finish Package Qty Item #
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
1/4"
1/4"-28
7/16"
5/16"
Carbon Steel
Yellow Zinc Plated
50
Log in to view price
5/16"
5/16"-24
1/2"
11/32"
Carbon Steel
Yellow Zinc Plated
50
Log in to view price
3/8"
3/8"-24
9/16"
29/64"
Carbon Steel
Yellow Zinc Plated
25
Log in to view price
7/16"
7/16"-20
5/8"
29/64"
Carbon Steel
Yellow Zinc Plated
25
Log in to view price
1/2"
1/2"-20
3/4"
19/32"
Carbon Steel
Yellow Zinc Plated
25
Log in to view price
9/16"
9/16"-18
7/8"
41/64"
Carbon Steel
Yellow Zinc Plated
25
Log in to view price
5/8"
5/8"-18
15/16"
3/4"
Carbon Steel
Yellow Zinc Plated
25
Log in to view price
3/4"
3/4"-16
1-1/16"
7/8"
Carbon Steel
Yellow Zinc Plated
10
Log in to view price
7/8"
7/8"-14
1-1/8"
63/64"
Carbon Steel
Yellow Zinc Plated
10
Log in to view price
1"
1"-14
1-7/16"
1-3/64"
Carbon Steel
Yellow Zinc Plated
10
Log in to view price
1-1/8"
1-1/8"-12
1-5/8"
1-11/64"
Carbon Steel
Yellow Zinc Plated
10
Log in to view price
1-1/4"
1-1/4"-12
1-13/16"
1-25/64"
Carbon Steel
Yellow Zinc Plated
10
Log in to view price
Grade C Ultra-Lock Reversible Lock Nuts - Coarse Thread (USS)
Grade C Ultra-Lock Reversible Lock Nuts - Coarse Thread (USS)
Produced from medium carbon steel and heat treated to meet Grade 8 performance standards. Developed for Automotive Fastener Engineering specifications. Features grade C prevailing torque design, reversible installation, and corrosion resistant yellow dichromate finish. Withstands severe shock and vibration loads, maintaining locking torque through up to 5 installations.
Diameter Thread Size Width Across Flats Height Material Finish Package Qty Item #
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
1/4"
1/4"-20
7/16"
7/32"
Carbon Steel
Yellow Dichromate
50
Log in to view price
5/16"
5/16"-18
1/2"
17/64"
Carbon Steel
Yellow Dichromate
50
Log in to view price
3/8"
3/8"-16
9/16"
21/64"
Carbon Steel
Yellow Dichromate
50
Log in to view price
7/16"
7/16"-14
11/16"
3/8"
Carbon Steel
Yellow Dichromate
50
Log in to view price
1/2"
1/2"-13
3/4"
7/16"
Carbon Steel
Yellow Dichromate
50
Log in to view price
9/16"
9/16"-12
7/8"
31/64"
Carbon Steel
Yellow Dichromate
25
Log in to view price
5/8"
5/8"-11
15/16"
35/64"
Carbon Steel
Yellow Dichromate
25
Log in to view price
3/4"
3/4"-10
1-1/8"
41/64"
Carbon Steel
Yellow Dichromate
25
Log in to view price
7/8"
7/8"-9
1-5/16"
47/64"
Carbon Steel
Yellow Dichromate
10
Log in to view price
1"
1"-8
1-1/2"
55/64"
Carbon Steel
Yellow Dichromate
10
Log in to view price
Grade C Ultra-Lock Reversible Lock Nuts - Fine Thread (SAE)
Grade C Ultra-Lock Reversible Lock Nuts - Fine Thread (SAE)
Produced from medium carbon steel and heat treated to meet Grade 8 performance standards. Developed for Automotive Fastener Engineering specifications. Features grade C prevailing torque design, reversible installation, and corrosion resistant yellow dichromate finish. Withstands severe shock and vibration loads, maintaining locking torque through up to 5 installations.
Diameter Thread Size Width Across Flats Height Material Finish Package Qty Item #
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
1/4"
1/4"-28
7/16"
7/32"
Carbon Steel
Yellow Dichromate
50
Log in to view price
5/16"
5/16"-24
1/2"
17/64"
Carbon Steel
Yellow Dichromate
50
Log in to view price
3/8"
3/8"-24
9/16"
21/64"
Carbon Steel
Yellow Dichromate
50
Log in to view price
7/16"
7/16"-20
11/16"
3/8"
Carbon Steel
Yellow Dichromate
50
Log in to view price
1/2"
1/2"-20
3/4"
7/16"
Carbon Steel
Yellow Dichromate
50
Log in to view price
9/16"
9/16"-18
7/8"
31/64"
Carbon Steel
Yellow Dichromate
25
Log in to view price
5/8"
5/8"-18
15/16"
35/64"
Carbon Steel
Yellow Dichromate
25
Log in to view price
3/4"
3/4"-16
1-1/8"
41/64"
Carbon Steel
Yellow Dichromate
25
Log in to view price
7/8"
7/8"-14
1-5/16"
47/64"
Carbon Steel
Yellow Dichromate
10
Log in to view price
1"
1"-14
1-1/2"
55/64"
Carbon Steel
Yellow Dichromate
10
Log in to view price
Grade 8 Nylon Insert Flange Lock Nuts - Coarse Thread (USS)
Grade 8 Nylon Insert Flange Lock Nuts - Coarse Thread (USS)
Produced from medium carbon steel and heat treated to meet Grade 8 performance standards. Developed to meet specifications of Automotive Fastener Engineering Specialists. Features a proven torque-tension relationship with Grade 8 bolts. Identified by six dots at 60° intervals on the crown. Zinc yellow plated with cadmium and wax finish. MADE IN THE U.S.A.
Diameter Thread Size Width Across Flats Height Material Finish Package Qty Item #
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
1/4"
1/4"-20
7/16"
0.3"
Carbon Steel
Yellow Zinc Plated
50
Log in to view price
5/16"
5/16"-18
1/2"
0.365"
Carbon Steel
Yellow Zinc Plated
50
Log in to view price
3/8"
3/8"-16
9/16"
0.425"
Carbon Steel
Yellow Zinc Plated
25
Log in to view price
1/2"
1/2"-13
3/4"
0.555"
Carbon Steel
Yellow Zinc Plated
25
Log in to view price
5/8"
5/8"-11
15/16"
0.69"
Carbon Steel
Yellow Zinc Plated
25
Log in to view price
3/4"
3/4"-10
1-1/8"
0.825"
Carbon Steel
Yellow Zinc Plated
10
Log in to view price

Top
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 50
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 50
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 25
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 25
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 25
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 25
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 25
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 10
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 10
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 10
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 10
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 10
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 10
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 50
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 50
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 25
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 25
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 25
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 25
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 25
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 10
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 10
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 10
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 10
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 10
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 10
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 50
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 50
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 25
Price
Want to view pricing for this product?
Log In or Create Login

Not a Kimball Midwest Customer?
Register
Pkg Qty: 25
130 of 52 Results

Stay Connected

Facebook LinkedIn Twitter Instagram YouTube Blog

Click '' to proceed with checkout or 'View Shopping Cart' to update.
  
For your account's security, we log you out after 4 hours of inactivity. To continue shopping, simply click the button below to log in again.