Key Locking Thread Inserts: 7/8-9, Extra Heavy Duty, Internal Locking, 303 Stainless Steel, Pkg. of 1

Key Locking Thread Insert: 7/8-9, Extra Heavy Duty, Internal Locking, 303 Stainless Steel (1 pc)

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Part Number: 77342

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Description
Product Features

Product Specs:

Internal Thread Size: 7/8-9
External Thread Size: 1 3/8-12
Wall Type: Extra Heavy Duty
Length: 1.250"
Internal Thread Lock: Yes
External Thread Lock: Yes
Number of Locking Keys: 4
Material: 303 Stainless Steel
Tap Size: 1 3/8-12
Drill Size: 1 5/16
Package Quantity: 1

Description:

Key Locking Thread Inserts are an ideal solution to repair stripped, damaged and worn threads or to provide thread reinforcement in a weaker parent material, especially when the mating stud or bolt will be removed frequently. They provide strong, permanent threads in virtually any material - ferrous, non-ferrous, or non-metallic. The insert's locking keys are driven down into the tapped threads of the parent material during installation creating a positive mechanical lock that prevents rotation due to vibration or torsion.

In addition to the external locking keys, internal locking inserts have a swaged in groove to produce an internal thread lock eliminating the need for other thread locking devices. Inserts with this feature are designed to securely lock a bolt within only a few turns.

The increased wall thickness and greater external thread area of these Extra Heavy Duty Threaded Inserts offer superior pull-out strength, stability, and longer life. These inserts should be used in materials with lower ultimate shear strength to obtain maximum pull-out strength and holding power.

Features:

Only Standard Drill and Tap required.
Can be used in most materials...aluminum, magnesium, cast iron, carbon steel, stainless steel and plastic.
Simple installation compared to helical wire inserts.
Nearly impossible for the insert to turn after installation.
Nearly impossible to cross thread while installing.
Adhesive not required to hold insert in place.
Rarely affected by hot or cold temperatures because it is held in place mechanically.
Easy to remove.

Cross Reference:

Key Locking Thread Insert: 7/8-9 ID, 1 3/8-12 OD, 303 SST, Locking

Chrislynn P/N: 77342
Keensert P/N: KNHXHL1409J
Mil-Spec P/N: MS51832-110L

If you are currently using Keensert, Military Specification, or National Aerospace Standard part numbers for your inserts, please see our Cross Reference list above for an easy and accurate transition to our Rock Solid line of Key Locking Inserts from Chrislynn. Step up to quality and value with this Made in the USA product!

Available Modifications to our Key Inserts:

Material - Carbon Steel, 303 Stainless Steel, 316 Stainless Steel, A286 Stainless, 4140 Alloy, Nitronic 60
Coatings - Dry Film, Cadmium, Silver Plating
Wall Thickness - Thin Wall, Heavy Duty Wall, Extra Heavy Duty Wall, Solid Blank (Outside Thread Only), Miniatures
Types - Free Running (Only External Lock), Locking (Both Internal & External Lock)
MS/NAS Certified - Produced to the following standards: MS51830, MS51831, MS51832, NAS1394, NAS1395, NA0146, NA0147, NA0148, NA0149, NA0150, NA0151.

For a comprehensive list of our available options, please visit our Key Locking Thread Insert summary page or call us toll free at (888) 835-0868.

Key Locking Thread Inserts: 7/8-9, Extra Heavy Duty, Steel, Pkg. of 1

Key Locking Thread Insert: 7/8-9, Extra Heavy Duty, Steel (1 pc)

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Key-Locking Insert Installation Tool: 7/8-9 Extra Heavy Duty

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1 3/8-12 HSS Plug Tap

$191.05

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1 5/16" HSS Reduced Shank Drill Bit (Silver & Deming)

$93.25

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Key Locking Thread Inserts: 7/8-9, Extra Heavy Duty, 303 Stainless Steel, Pkg. of 1

Key Locking Thread Insert: 7/8-9, Extra Heavy Duty, 303 Stainless Steel (1 pc)

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Key Locking Thread Insert: 7/8-9, Extra Heavy Duty, Internal Locking, 303 Stainless Steel (1 pc)

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