Keyserts
Industrial Grade Keenserts
Keyserts, also known as keenserts, are solid, one piece, key-locking inserts used to repair damaged threads or for use in original equipment. These industrial-grade keyserts feature locking keys that provide a positive mechanical lock, preventing rotation due to vibration or torsion. keyserts are available in carbon or stainless steel, in both inch and metric series.Read more about keyserts below!
Keysert Options
- Thin wall keyserts
- Heavy duty keyserts
- Extra heavy duty keyserts
- Solid keyserts
Features & Benefits of Keysert Threaded Inserts
- Reliable in the most demanding conditions, including heavy wear and high vibration applications
- Easy to install and remove with standard drills and taps (see below for installation diagram)
- Suitable for use in a wide range of materials*: aluminum, magnesium, and cold rolled steel
- Huge selection of sizes and styles makes it easy to find the right option for your needs
* Note: Keyserts are not recommended for use in brittle materials such as cast iron or plastic.
Follow the links below to find the keyserts you need, or use the filters at left to narrow your search. Order keyserts for your application today, request a quote, or contact Jay-Cee Sales & Rivet learn more.
Steel Keyserts
- Keysert material: C1215 (or equivalent)
- Key material: 302 stainless steel
- Finish: zinc phosphate and Ferrocote 364-3 oil
- Tolerances: ±0.10”/±0.25mm (unless otherwise specified)
- Keys: Inserts with internal thread sizes 5/16 or M7 and larger are furnished with four (4) locking keys
- Available in assortment kits
Stainless Steel Keyserts
- Keysert material: 303 stainless steel
- Key material: 302 stainless steel
- Finish: passivated
- Tolerances: ±0.10”/±0.25mm (unless otherwise specified)
- Keys: Insert with internal thread size 5/16 or M7 and larger are furnished with four (4) locking keys
- Available in assortment kits
Material: STEEL Inserts - C1215 or equivalent |
Material: STAINLESS STEEL Inserts - 303 Stainless Steel |
Internal Thread Size | Steel Insert No. | Stainless Insert No. | *External Thread Size (Mod.) | Length | Installation Data | Removal Data | ||||
Tap Drill Size | C'Sink Dia. | Tap Size | Insert Tool Part No. | Drill | ||||||
Size | Depth | |||||||||
10-24 | KI-73601 | KI-73606 | 5/16-18 | .31 | "I" | .32 | 5/16-18 | KS-72190 | 7/32" | 1/8 |
10-32 | KI-74601 | KI-74606 | ||||||||
1/4-20 | KI-73041 | KI-73046 | 3/8-16 | .37 | "Q" | .38 | 3/8-16 | KS-72250 | 9/32 | 3/16 |
1/4-28 | KI-74041 | KI-74046 | ||||||||
5/16-18 | KI-73051 | KI-73056 | 7/16-14 | .43 | "X" | .44 | 7/16-14 | KS-72312 | 11/32 | 3/16 |
5/16-24 | KI-74051 | KI-74056 | ||||||||
3/8-16 | KI-73061 | KI-73066 | 1/2-13 | .50 | 29/64 | .51 | 1/2-13 | KS-72375 | 13/32 | 3/16 |
3/8-24 | KI-74061 | KI-74066 | ||||||||
7/16-14 | KI-73071 | KI-73076 | 9/16-12 | .56 | 33/64 | .57 | 9/16-12 | KS-72375 | 15/32 | 3/16 |
7/16-20 | KI-74071 | KI-74076 | ||||||||
1/2-13 | KI-73081 | KI-73086 | 5/8-11 | .62 | 37/64 | .63 | 5/8-11 | KS-72500 | 17/32 | 3/16 |
1/2-20 | KI-74081 | KI-74086 |
* For reference only.
Internal Thread Size | Steel Insert No. | Stainless Steel No. | *External Thread Size (Mod.) | Length | Installation Data | Removal Data | ||||
Tap Drill Size | C'Sink Dia. | Tap Size | Insert Tool Part No. | Drill | ||||||
Size | Depth | |||||||||
8-32 | KI-73582 | KI-73587 | 5/16-18 | .31 | "I" | .32 | 5/16-18 | KS-70582 | 7/32 | 1/8 |
10-24 | KI-73602 | KI-73607 | 3/8-16 | .31 | "Q" | .38 | 3/8-16 | KS-72190 | 9/32 | 1/8 |
10-32 | KI-74602 | KI-74607 | ||||||||
1/4-20 | KI-73042 | KI-73047 | 7/16-14 | .37 | "X" | .44 | 7/16-14 | KS-72250 | 11/32 | 3/16 |
1/4-28 | KI-74042 | KI-74047 | ||||||||
5/16-18 | KI-73052 | KI-73057 | 1/2-13 | .43 | 29/64 | .51 | 1/2-13 | KS-72312 | 13/32 | 3/16 |
5/16-24 | KI-74052 | KI-74057 | ||||||||
3/8-16 | KI-73062 | KI-73067 | 9/16-12 | .50 | 33/64 | .57 | 9/16-12 | KS-72375 | 15/32 | 3/16 |
3/8-24 | KI-74062 | KI-74067 | ||||||||
7/16-14 | KI-73072 | KI-73077 | 5/8-11 | .62 | 37/64 | .63 | 5/8-11 | KS-72375 | 17/32 | 3/16 |
7/16-20 | KI-74072 | KI-74077 | ||||||||
1/2-13 | KI-73082 | KI-73087 | 3/4-16 | 45/64 | .76 | 3/4-16 | KS-72500 | 21/32 | 3/16 | |
1/2-20 | KI-74082 | KI-74087 | ||||||||
9/16-12 | KI-73092 | KI-73097 | 3/4-16 | .81 | KS-72500 | |||||
9/16-18 | KI-74092 | KI-74097 | ||||||||
5/8-11 | KI-73102 | KI-73107 | 7/8-14 | .87 | 53/64 | .88 | 7/8-14 | KS-72625 | 25/32 | 3/16 |
5/8-18 | KI-74102 | KI-74107 | ||||||||
3/4-10 | KI-73122 | KI-73127 | 1-1/8-12 | 1.12 | 1-1/16 | 1.14 | 1-1/8-12 | KS-72875 | 31/32 | 5/16 |
3/4-16 | KI-74122 | KI-74127 | ||||||||
7/8-9 | KI-73142 | KI-73147 | 1-1/4-12 | 1.25 | 1-3/16 | 1.27 | 1-1/4-12 | KS-72875 | 1-3/32 | 5/16 |
7/8-14 | KI-74142 | KI-74147 | ||||||||
1-8 | KI-73162 | KI-73167 | 1-3/8-12 | 1.37 | 1-5/16 | 1.39 | 1-3/8-12 | KS-72100 | 1-7/32 | 5/16 |
1-12 | KI-74162 | KI-74167 | ||||||||
1-14 | KI-74162-14 | N/A | ||||||||
1-1/8-7 | KI-73182 | N/A | 1-1/2-12 | 1.62 | 1-7/16 | 1.52 | 1-1/2-12 | KS-70182 | 1-11/32 | 5/16 |
1-1/8-12 | KI-74182 | N/A | ||||||||
1-1/8-18 | N/A | N/A | ||||||||
1-1/4-7 | KI-73202 | N/A | 1-5/8-12 | 1.81 | 1-9/16 | 1.64 | 1-5/8-12 | KS-70202 | 1-15/32 | 5/16 |
1-1/4-12 | KI-74202 | N/A | ||||||||
1-1/2-6 | KI-73242 | N/A | 1-7/8-12 | 2.00 | 1-13/16 | 1.89 | 1-7/8-12 | KS-70242 | 1-23/32 | 5/16 |
1-1/2-12 | KI-74242 | N/A |
Internal Thread Size | Steel Insert No. | Stainless Steel No. | *External Thread Size 6g | Length | Installation Data | Removal Data | ||||
Tap Drill Size | C'Sink Dia. +.25/-.00 | Tap Size 6H | Insert Tool Part No. | Drill | ||||||
Size | Depth | |||||||||
M5x0.8 | KI-75051 | KI-75056 | M8x1.25 | 8.0 | 6.9 | 8.25 | M8x1.25 | KS-72190 | 5.50 | 4.00 |
M6x1.0 | KI-75061 | KI-75066 | M10x1.25 | 10.0 | 8.8 | 10.25 | M10x1.25 | KS-72250 | 7.50 | 4.75 |
M8x1.0 | KI-77081 | KI-77086 | M12x1.25 | 12.0 | 10.8 | 12.25 | M12x1.25 | KS-72312 | 9.50 | |
M8x1.25 | KI-75081 | KI-75086 | ||||||||
M10x1.25 | KI-77101 | KI-77106 | M14x1.5 | 14.0 | 12.8 | 14.25 | M14x1.5 | KS-72375 | 11.50 | |
M10x1.5 | KI-75101 | KI-75106 | ||||||||
M12x1.25 | KI-78121 | KI-78126 | M16x1.5 | 16.0 | 14.75 | 16.25 | M16x1.5 | KS-72500 | 13.50 | |
M12x1.75 | KI-75121 | KI-75126 |
Heavy Duty Metric Inserts Carbon Steel and Stainless Steel
Common Keysert Applications
- Automotive
- Industrial machinery and equipment
- Small engine
- Molds, tool and die
- MRO Tasks
Contact Us for Steel & Stainless Steel Keyserts
With nearly 150 options to choose from, Jay-Cee Sales & Rivet is sure to have the right keysert threaded inserts for your application. Order yours today, request a quote, or contact us for more information.