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
  • Promo Codes
  • 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
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. Threaded Inserts
  6. /
  7. Key Locking Inserts
Search Feedback

Key Locking Inserts (393 items)

Zoro Select Key Locking Thread Insert, Thin Wall, 4 Keys, 3/8"-16 Int Thrd Sz, 1/2"-13 Ext Thrd Sz, 10 PK 217-076324
CAD Files Available
Zoro Select

Key Locking Thread Insert, Thin Wall, 4 Keys, 3/8"-16 Int Thrd Sz, 1/2"-13 Ext Thrd Sz, 10 PK

Zoro # G910652433
Mfr # 217-076324
product price:  $49.79
/pk 10, $4.98/ea
Zoro Select Key Locking Thread Insert, Heavy Wall, 4 Keys, M20-2.50 Int Thrd Sz, M30-2.00 Ext Thrd Sz, 10 PK 217-076373
CAD Files Available
Zoro Select

Key Locking Thread Insert, Heavy Wall, 4 Keys, M20-2.50 Int Thrd Sz, M30-2.00 Ext Thrd Sz, 10 PK

Zoro # G510607253
Mfr # 217-076373
product price:  $157.99
/pk 10, $15.80/ea
Loksert Key Locking Insert, 4 Keys Keys, 3/8"-16 Int Thrd Sz, 1/2"-13 Ext Thrd Sz, Carbon Steel, 5 PK 3632-3/8TWP
Loksert

Key Locking Insert, 4 Keys Keys, 3/8"-16 Int Thrd Sz, 1/2"-13 Ext Thrd Sz, Carbon Steel, 5 PK

Zoro # G6441386
Mfr # 3632-3/8TWP
product price:  $23.99
/pk 5, $4.80/ea
Zoro Select Key Locking Thread Insert, Heavy Wall, 4 Keys, 5/8"-11 Int Thrd Sz, 7/8"-14 Ext Thrd Sz, 10 PK 217-076308
CAD Files Available
Zoro Select

Key Locking Thread Insert, Heavy Wall, 4 Keys, 5/8"-11 Int Thrd Sz, 7/8"-14 Ext Thrd Sz, 10 PK

Zoro # G210652386
Mfr # 217-076308
product price:  $115.99
/pk 10, $11.60/ea
Loksert Key Locking Insert, 4 Keys Keys, M6-1.00 Int Thrd Sz, M10-1.25 Ext Thrd Sz, Carbon Steel, 5 PK 3620-6.00TWP
Loksert

Key Locking Insert, 4 Keys Keys, M6-1.00 Int Thrd Sz, M10-1.25 Ext Thrd Sz, Carbon Steel, 5 PK

Zoro # G6441751
Mfr # 3620-6.00TWP
product price:  $21.95
/pk 5, $4.39/ea
Loksert Key Locking Insert, 4 Keys Keys, 5/16"-18 Int Thrd Sz, 1/2"-13 Ext Thrd Sz, Stainless Steel, 5 PK MS51831-103 PKG5
Loksert

Key Locking Insert, 4 Keys Keys, 5/16"-18 Int Thrd Sz, 1/2"-13 Ext Thrd Sz, Stainless Steel, 5 PK

Zoro # G6440150
Mfr # MS51831-103 PKG5
product price:  $34.19
/pk 5, $6.84/ea
Zoro Select Key Locking Insert, Thin Wall, 4 Keys, 5/16"-18 Int Thrd Sz, 7/16"-14 Ext Thrd Sz, Steel, 10 PK 215-065923
Zoro Select

Key Locking Insert, Thin Wall, 4 Keys, 5/16"-18 Int Thrd Sz, 7/16"-14 Ext Thrd Sz, Steel, 10 PK

Zoro # G114791075
Mfr # 215-065923
product price:  $31.29
/pk 10, $3.13/ea
Zoro Select Key Locking Thread Insert, Heavy Wall, 4 Keys, 3/8"-16 Int Thrd Sz, 9/16"-12 Ext Thrd Sz, 10 PK 217-076304
CAD Files Available
Zoro Select

Key Locking Thread Insert, Heavy Wall, 4 Keys, 3/8"-16 Int Thrd Sz, 9/16"-12 Ext Thrd Sz, 10 PK

Zoro # G110652394
Mfr # 217-076304
product price:  $43.89
/pk 10, $4.39/ea
Zoro Select Key Locking Insert, Heavy Wall, 4 Keys, 3/4"-16 Int Thrd Sz, 1 1/8"-12 Ext Thrd Sz, Stainless Steel 215-066109
Zoro Select

Key Locking Insert, Heavy Wall, 4 Keys, 3/4"-16 Int Thrd Sz, 1 1/8"-12 Ext Thrd Sz, Stainless Steel

Zoro # G614739003
Mfr # 215-066109
product price:  $105.99
/pk 10, $10.60/ea
Zoro Select Key Locking Insert, Heavy Wall, 4 Keys, 3/4"-10 Int Thrd Sz, 1 1/8"-12 Ext Thrd Sz, Steel, 10 PK 215-065909
CAD Files Available
Zoro Select

Key Locking Insert, Heavy Wall, 4 Keys, 3/4"-10 Int Thrd Sz, 1 1/8"-12 Ext Thrd Sz, Steel, 10 PK

Zoro # G814228819
Mfr # 215-065909
product price:  $115.99
/pk 10, $11.60/ea
Loksert Key Locking Insert, 4 Keys Keys, 1/2"-13 Int Thrd Sz, 5/8"-11 Ext Thrd Sz, Stainless Steel, 5 PK MS51830-110 PKG5
Loksert

Key Locking Insert, 4 Keys Keys, 1/2"-13 Int Thrd Sz, 5/8"-11 Ext Thrd Sz, Stainless Steel, 5 PK

Zoro # G6440281
Mfr # MS51830-110 PKG5
product price:  $65.79
/pk 5, $13.16/ea
Zoro Select Key Locking Thread Insert, Heavy Wall, 4 Keys, 5/16"-18 Int Thrd Sz, 1/2"-13 Ext Thrd Sz, 10 PK 217-076303
CAD Files Available
Zoro Select

Key Locking Thread Insert, Heavy Wall, 4 Keys, 5/16"-18 Int Thrd Sz, 1/2"-13 Ext Thrd Sz, 10 PK

Zoro # G310652392
Mfr # 217-076303
product price:  $38.45
/pk 10, $3.85/ea
Zoro Select Key Locking Thread Insert, Thin Wall, 4 Keys, M10-1.50 Int Thrd Sz, M14-1.50 Ext Thrd Sz, 10 PK 217-076355
CAD Files Available
Zoro Select

Key Locking Thread Insert, Thin Wall, 4 Keys, M10-1.50 Int Thrd Sz, M14-1.50 Ext Thrd Sz, 10 PK

Zoro # G910652419
Mfr # 217-076355
product price:  $85.49
/pk 10, $8.55/ea
Zoro Select Key Locking Thread Insert, Thin Wall, 4 Keys, 1/4"-20 Int Thrd Sz, 3/8"-16 Ext Thrd Sz, 10 PK 217-076322
CAD Files Available
Zoro Select

Key Locking Thread Insert, Thin Wall, 4 Keys, 1/4"-20 Int Thrd Sz, 3/8"-16 Ext Thrd Sz, 10 PK

Zoro # G110607202
Mfr # 217-076322
product price:  $32.15
/pk 10, $3.22/ea
Zoro Select Key Locking Thread Insert, Thin Wall, 4 Keys, M6-1.00 Int Thrd Sz, M10-1.25 Ext Thrd Sz, 10 PK 217-076352
CAD Files Available
Zoro Select

Key Locking Thread Insert, Thin Wall, 4 Keys, M6-1.00 Int Thrd Sz, M10-1.25 Ext Thrd Sz, 10 PK

Zoro # G510652383
Mfr # 217-076352
product price:  $70.15
/pk 10, $7.02/ea
Zoro Select Key Locking Thread Insert, Heavy Wall, 4 Keys, 3/8"-16 Int Thrd Sz, 9/16"-12 Ext Thrd Sz, 10 PK 217-077304
CAD Files Available
Zoro Select

Key Locking Thread Insert, Heavy Wall, 4 Keys, 3/8"-16 Int Thrd Sz, 9/16"-12 Ext Thrd Sz, 10 PK

Zoro # G710607381
Mfr # 217-077304
product price:  $63.95
/pk 10, $6.40/ea
Zoro Select Key Locking Thread Insert, Heavy Wall, 4 Keys, M10-1.50 Int Thrd Sz, M16-1.50 Ext Thrd Sz, 10 PK 217-076367
CAD Files Available
Zoro Select

Key Locking Thread Insert, Heavy Wall, 4 Keys, M10-1.50 Int Thrd Sz, M16-1.50 Ext Thrd Sz, 10 PK

Zoro # G710607282
Mfr # 217-076367
product price:  $83.89
/pk 10, $8.39/ea
No Product Image Available
Zoro Select

Key Locking Insert, Thin Wall, 2 Keys, 1/4"-20 Int Thrd Sz, 3/8"-16 Ext Thrd Sz, Steel, 10 PK

Zoro # G514228935
Mfr # 215-065922
product price:  $24.79
/pk 10, $2.48/ea
Loksert Key Locking Insert, 4 Keys Keys, 1/4"-20 Int Thrd Sz, 7/16"-14 Ext Thrd Sz, Stainless Steel, 5 PK MS51831-102 PKG5
Loksert

Key Locking Insert, 4 Keys Keys, 1/4"-20 Int Thrd Sz, 7/16"-14 Ext Thrd Sz, Stainless Steel, 5 PK

Zoro # G6440178
Mfr # MS51831-102 PKG5
product price:  $23.15
/pk 5, $4.63/ea
Zoro Select Key Locking Thread Insert, Heavy Wall, 4 Keys, 3/4"-16 Int Thrd Sz, 1 1/8"-12 Ext Thrd Sz, 10 PK 217-076509
CAD Files Available
Zoro Select

Key Locking Thread Insert, Heavy Wall, 4 Keys, 3/4"-16 Int Thrd Sz, 1 1/8"-12 Ext Thrd Sz, 10 PK

Zoro # G010607357
Mfr # 217-076509
product price:  $134.99
/pk 10, $13.50/ea
Zoro Select Key Locking Thread Insert, Heavy Wall, 4 Keys, 1/4"-20 Int Thrd Sz, 7/16"-14 Ext Thrd Sz, 10 PK 217-076302
CAD Files Available
Zoro Select

Key Locking Thread Insert, Heavy Wall, 4 Keys, 1/4"-20 Int Thrd Sz, 7/16"-14 Ext Thrd Sz, 10 PK

Zoro # G510652413
Mfr # 217-076302
product price:  $36.39
/pk 10, $3.64/ea
Loksert Key Locking Insert, 4 Keys Keys, M6-1.00 Int Thrd Sz, M12-1.25 Ext Thrd Sz, Stainless Steel, 5 PK 3720-6.00HDP
Loksert

Key Locking Insert, 4 Keys Keys, M6-1.00 Int Thrd Sz, M12-1.25 Ext Thrd Sz, Stainless Steel, 5 PK

Zoro # G6440729
Mfr # 3720-6.00HDP
product price:  $35.55
/pk 5, $7.11/ea
Zoro Select Key Locking Insert, Heavy Wall, 4 Keys, M16-2.00 Int Thrd Sz, M22-1.50 Ext Thrd Sz, Stainless Steel 217-076371
CAD Files Available
Zoro Select

Key Locking Insert, Heavy Wall, 4 Keys, M16-2.00 Int Thrd Sz, M22-1.50 Ext Thrd Sz, Stainless Steel

Zoro # G010607227
Mfr # 217-076371
product price:  $124.99
/pk 10, $12.50/ea
Zoro Select Key Locking Insert, Thin Wall, 2 Keys, M5x0.8 Int Thrd Sz, M8x1.25 Ext Thrd Sz, Stainless Steel 215-066351
CAD Files Available
Zoro Select

Key Locking Insert, Thin Wall, 2 Keys, M5x0.8 Int Thrd Sz, M8x1.25 Ext Thrd Sz, Stainless Steel

Zoro # G114228809
Mfr # 215-066351
product price:  $59.39
/pk 10, $5.94/ea
Zoro Select Key Locking Thread Insert, Heavy Wall, 4 Keys, 7/16"-14 Int Thrd Sz, 5/8"-11 Ext Thrd Sz, 10 PK 217-077305
CAD Files Available
Zoro Select

Key Locking Thread Insert, Heavy Wall, 4 Keys, 7/16"-14 Int Thrd Sz, 5/8"-11 Ext Thrd Sz, 10 PK

Zoro # G710607367
Mfr # 217-077305
product price:  $94.29
/pk 10, $9.43/ea
Zoro Select Key Locking Thread Insert, Extra Heavy Wall, 4 Keys, 3/4"-10 Int Thd Sz, 1 1/4"-12 Ext Thd Sz, 10 PK 217-076341
CAD Files Available
Zoro Select

Key Locking Thread Insert, Extra Heavy Wall, 4 Keys, 3/4"-10 Int Thd Sz, 1 1/4"-12 Ext Thd Sz, 10 PK

Zoro # G810607182
Mfr # 217-076341
product price:  $364.99
/pk 10, $36.50/ea
Zoro Select Key Locking Thread Insert, Heavy Wall, 4 Keys, 1/4"-20 Int Thrd Sz, 7/16"-14 Ext Thrd Sz, 10 PK 217-077302
CAD Files Available
Zoro Select

Key Locking Thread Insert, Heavy Wall, 4 Keys, 1/4"-20 Int Thrd Sz, 7/16"-14 Ext Thrd Sz, 10 PK

Zoro # G510652420
Mfr # 217-077302
product price:  $47.99
/pk 10, $4.80/ea
Zoro Select Key Locking Insert, Heavy Wall, 4 Keys, 1/4"-20 Int Thrd Sz, 7/16"-14 Ext Thrd Sz, Steel, 10 PK 215-065902
Zoro Select

Key Locking Insert, Heavy Wall, 4 Keys, 1/4"-20 Int Thrd Sz, 7/16"-14 Ext Thrd Sz, Steel, 10 PK

Zoro # G914652767
Mfr # 215-065902
product price:  $20.19
/pk 10, $2.02/ea
Zoro Select Key Locking Insert, Thin Wall, 4 Keys, M12x1.75 Int Thrd Sz, M16x1.5 Ext Thrd Sz, Steel, 10 PK 215-065956
CAD Files Available
Zoro Select

Key Locking Insert, Thin Wall, 4 Keys, M12x1.75 Int Thrd Sz, M16x1.5 Ext Thrd Sz, Steel, 10 PK

Zoro # G714228896
Mfr # 215-065956
product price:  $39.89
/pk 10, $3.99/ea
Zoro Select Key Locking Thread Insert, Extra Heavy Wall, 4 Keys, 5/8"-11 Int Thrd Sz, 1"-12 Ext Thrd Sz, 10 PK 217-077340
CAD Files Available
Zoro Select

Key Locking Thread Insert, Extra Heavy Wall, 4 Keys, 5/8"-11 Int Thrd Sz, 1"-12 Ext Thrd Sz, 10 PK

Zoro # G010607302
Mfr # 217-077340
product price:  $297.99
/pk 10, $29.80/ea
Zoro Select Key Locking Insert, Thin Wall, 4 Keys, #10-32 Int Thrd Sz, 5/16"-18 Ext Thrd Sz, Stainless Steel 217-076521
CAD Files Available
Zoro Select

Key Locking Insert, Thin Wall, 4 Keys, #10-32 Int Thrd Sz, 5/16"-18 Ext Thrd Sz, Stainless Steel

Zoro # G410652438
Mfr # 217-076521
product price:  $34.49
/pk 10, $3.45/ea
Zoro Select Key Locking Insert, Heavy Wall, 4 Keys, 3/8"-16 Int Thrd Sz, 9/16"-12 Ext Thrd Sz, Steel, 10 PK 215-065904
CAD Files Available
Zoro Select

Key Locking Insert, Heavy Wall, 4 Keys, 3/8"-16 Int Thrd Sz, 9/16"-12 Ext Thrd Sz, Steel, 10 PK

Zoro # G114228885
Mfr # 215-065904
product price:  $38.99
/pk 10, $3.90/ea
Loksert Key Locking Insert, 4 Keys Keys, 1/2"-13 Int Thrd Sz, 5/8"-11 Ext Thrd Sz, Carbon Steel, 5 PK 3632-1/2TWP
Loksert

Key Locking Insert, 4 Keys Keys, 1/2"-13 Int Thrd Sz, 5/8"-11 Ext Thrd Sz, Carbon Steel, 5 PK

Zoro # G6441526
Mfr # 3632-1/2TWP
product price:  $33.19
/pk 5, $6.64/ea
Loksert Key Locking Insert, 4 Keys Keys, #10-24 Int Thrd Sz, 3/8"-16 Ext Thrd Sz, Stainless Steel, 5 PK MS51831-101 PKG5
Loksert

Key Locking Insert, 4 Keys Keys, #10-24 Int Thrd Sz, 3/8"-16 Ext Thrd Sz, Stainless Steel, 5 PK

Zoro # G6440187
Mfr # MS51831-101 PKG5
product price:  $21.95
/pk 5, $4.39/ea
Loksert Key Locking Insert, 4 Keys Keys, M8-1.25 Int Thrd Sz, M14-1.50 Ext Thrd Sz, Stainless Steel, 5 PK 3720-8.00HDP
Loksert

Key Locking Insert, 4 Keys Keys, M8-1.25 Int Thrd Sz, M14-1.50 Ext Thrd Sz, Stainless Steel, 5 PK

Zoro # G6440686
Mfr # 3720-8.00HDP
product price:  $42.65
/pk 5, $8.53/ea
Loksert Key Locking Insert, 4 Keys Keys, 1/4"-28 Int Thrd Sz, 3/8"-16 Ext Thrd Sz, Stainless Steel, 5 PK MS51830-202 PKG5
Loksert

Key Locking Insert, 4 Keys Keys, 1/4"-28 Int Thrd Sz, 3/8"-16 Ext Thrd Sz, Stainless Steel, 5 PK

Zoro # G6440248
Mfr # MS51830-202 PKG5
product price:  $24.59
/pk 5, $4.92/ea
Key Locking Inserts (393 items)
  • 1
    of 11 pages
  • Next
  • Last

About Key Locking Inserts

Key Locking Inserts are a type of threaded insert that has been designed with a locking feature to ensure secure fastening. This makes them ideal for use in applications where vibration, shock, or other environmental conditions can cause the thread to come loose. Key Locking Inserts are available in several different styles and materials, allowing for optimal performance in any application.

Types of Key Locking Inserts

There are several types of Key Locking Inserts available on the market today. These include key lock inserts, key lock thread repair inserts, key lock threaded inserts, key locking thread inserts, and keylocking threaded inserts. Each type offers its own advantages and disadvantages depending on the application they are used for.

How Key Locking Inserts Are Made

Key Locking Inserts are typically made from metals such as stainless steel or brass and often feature a variety of configurations such as hexagonal or triangular shapes. The locking feature is created through special machining processes which create threads that interlock when tightened into place.

Industries That Use Key Locking Inserts

Key Locking Inserts can be found in many industries including automotive manufacturing, aerospace engineering, oil and gas production facilities, construction sites, electrical installations and more. Professionals who work in these industries rely on Key Locking Inserts to securely fasten components together while also preventing vibration loosening or accidental detachment.

Find the Key Locking Inserts 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

Thread Repair KitsSelf Locking InsertsHelical InsertsSocket Head Cap ScrewsGeneral Washers
Self-Tapping ScrewsHex Head Cap ScrewsFully-Threaded Rods & StudsLock WashersAnchor Screws
keen sertkey locking insert toolkey locking thread insertkey locking insertkey lock inserts
key locking insert kitkey-locking insertsHex NutsSafety Pins

Sign Up & 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
  • Promo Codes
  • 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