Whittet higgins TLN-03 Tangentlok Tangential Locking Retaining Nut
- T 0.664-32
- D 1.130″
- B 0.385″
Genuine Whittet-Higgins product, Whittet-Higgins
- Regular price
- $39.97
- Sale price
- $39.97
- Regular price
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Quantity pricingApplied at checkout
- 20–49 5% off$37.97 ea
- 50–99 8% off$36.77 ea
- 100–199 15% off$33.97 ea
- 200–499 18% off$32.78 ea
- 500+ 25% off$29.98 ea
Same-day shipping
Order by 3 PM ET for same-day shipping
Free shipping on orders over $100
Use code at checkout.
Whittet-Higgins TLN-03
$39.97
Why Apollo USA
Bearing locknuts and retaining parts from Apollo Industries, Oxford, Michigan
Apollo Industries supplies bearings, locknuts, lockwashers and maintenance tools to businesses across the US, with real people on the phone when you need a part matched.
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Same-day shipping
Order by 3 PM EST for same-day shipping.
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Free shipping over $100
All orders over $100 ship free by ground with code FREESHIP.
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90-day returns
Hassle-free returns on unused items within 90 days.
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Price match
Show us a competitor's advertised price on the same item and we will match it.
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Expert support
Support staff available by phone, web chat or email.
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Need tax exemption or quantity pricing?
We offer special rates for businesses and bulk orders.
Talk to a parts specialist
2695 Lake George RdOxford, MI 48370
Overview
Whittet-Higgins TLN-03 Locknut
The Whittet-Higgins TANGENTLOK TLN series is an inch-thread, mechanically self-locking bearing locknut used to position, retain, and preload bearings, sleeves, and similar components on a threaded shaft or adapter. It locks with tangential (X-axis) socket head cap screws that clamp the nut's internal threads uniformly 360 degrees to the centerline of the shaft, preventing the assembly from loosening under vibration, shock, and torque without damaging the shaft threads.
Its balanced design suits high-speed and high-precision assemblies and provides infinite adjustment and preloading without a keyway or a separate lockwasher, making it faster and easier to install than a traditional locknut-and-lockwasher arrangement. The base threaded nut is carbon steel with hardened alloy fasteners, is rated to a maximum operating temperature of 300°F, and meets and exceeds the specifications of ANSI/ABMA 8.2-1999.
Key features
- Mechanically self-locking inch-thread bearing locknut (TANGENTLOK TLN series)
- Tangential (X-axis) socket head cap screws provide uniform 360-degree thread clamping to the shaft centerline
- Prevents loosening from vibration, shock, and torque; does not damage shaft threads when secured
- Balanced design for high-speed and high-precision assemblies
- Infinite adjustment and preloading; eliminates the need for a shaft keyway or separate lockwasher
- Base threaded nut carbon steel; fasteners hardened alloy
- Maximum operating temperature 300°F
- Meets and exceeds ANSI/ABMA 8.2-1999
- Manufactured in USA and RoHS compliant
Specifications
Whittet-Higgins TLN-03 dimensions & specifications
- PDFTLN-03 part print (opens in a new tab)
- STEP3D CAD model (opens in a new tab)
- PDFTLN series spec sheet (opens in a new tab)
Files from Whittet-Higgins. They open in a new tab.
- Type
- Tangentlok locknut
- Thread T
- 0.664-32 (16.87 mm, 32 threads per inch)
- Outside diameter (max.) D
- 1.130 in (28.70 mm)
- Face diameter (max.) F
- 0.938 in (23.83 mm)
- Width (max.) B
- 0.385 in (9.78 mm)
- Theoretical axial load
- 11,800 lbf (52.5 kN)
- Hex set screw
- 10-32
- Suggested screw torque
- 22 in-lb (2.5 N·m)
- Material
- Carbon Steel (alloy fastener)
- Country of origin
- USA
- Series
- Tangentlok TLN series (inch)
- Standard
- ANSI/ABMA 8.2-1999 meets and exceeds
- Weight
- 0.06 lb
- Brand
- Whittet-Higgins
- Part number
- TLN-03 also written TLN03
- UPC / EAN
- 751968160304
Same size, other versions
Other versions of the TLN-03
The same size in other Whittet-Higgins series: left-hand thread, stainless steel, high strength, precision or self-locking designs.
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$11.19
In stock
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Whittet-Higgins
BHL-03Whittet Higgins BHL-03 Bearhug Left Handed Retaining Nut
Bearhug BHL series (left-handed) · left-hand thread
$19.89
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Whittet-Higgins
BHM-03Whittet Higgins BHM-03 Bearhug Retaining Nut Hardened Alloy - High Strength
Bearhug BHM series (high strength)
$24.16
In stock
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Whittet-Higgins
BHS-03Whittet Higgins BHS-03 Bearhug Retaining Nut - Stainless
Bearhug BHS series (stainless)
$32.75
In stock
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Whittet-Higgins
BHT-03Whittet Higgins BHT-03 Bearhug Locknut, All Steel
Bearhug BHT series (heat resistant)
$42.55
In stock
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$60.69
In stock
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$14.88
In stock
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$4.64
In stock
Part number explained
What every part of TLN-03 means
- TLN
- Tangentlok locknut, Tangentlok TLN series (inch)
- 03
- Size 03: 0.664-32 thread
Catalogs & documents
Whittet-Higgins TLN-03 catalogs & documents
Official catalogs and data from the manufacturer. They open as PDFs in a new tab.
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Product document
Tangentlok – TLN Series (Inch) Catalog (opens in a new tab)
PDF · AllPagesDrop pages
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Catalog
Whittet-Higgins Handbook of Engineering & Design (rev. 2018) (opens in a new tab)
PDF · 93.0 MB · English
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Mounting
Whittet-Higgins Assembly Instructions (opens in a new tab)
PDF · 0.2 MB · English
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Safety
Whittet-Higgins Standard Statements: Prop 65, RoHS3, REACH (opens in a new tab)
PDF · 0.1 MB · English
About the brand
About Whittet-Higgins
Bearing locknuts, lockwashers and retaining devices from Rhode Island since 1914.
Henry Whittet and John Higgins founded the Whittet-Higgins Manufacturing Company in 1914 in the basement of a mill on Congress Avenue in Providence, Rhode Island, making super-precision bearing retaining components and machined parts for local machine builders such as Brown & Sharpe.
In 1967 the company was sold to a young mechanical engineer, and in 1969 it moved to 33 Higginson Avenue in Central Falls, Rhode Island, where it still makes its products. Its first line of 66 locknuts and lockwashers has grown to more than 4,300 standard parts, made on robotic CNC systems.
Besides the standard N/AN and KM locknuts with W and MB lockwashers, Whittet-Higgins makes its own self-locking designs: Bearhug prevailing-torque locknuts, Bearlok, Shoelok and Tangentlok clamping locknuts, clampnuts and splitnuts, plus adapter sets, clamp collars and installation tools. The company is family owned and operated.
Genuine Whittet-Higgins product from an authorized retailer
Founded
1914
Headquarters
Central Falls, Rhode Island, USA
Standard parts
More than 4,300
Made in
Central Falls, Rhode Island
Known for
- Bearing locknuts and lockwashers, inch and metric
- Bearhug self-locking locknuts
- Clampnuts, splitnuts and clamp collars
- Adapter sets and installation tools
Apollo Industries is an authorized Whittet-Higgins retailer. All Whittet-Higgins trademarks and product names are the property of their respective owners.
FAQ
TLN-03 questions & answers
What size is the Whittet-Higgins TLN-03?
The Whittet-Higgins TLN-03 is a Tangentlok locknut. Thread: 0.664-32 (16.87 mm, 32 threads per inch). Outside diameter: 1.130 in (28.70 mm). Face diameter: 0.938 in (23.83 mm). Width: 0.385 in (9.78 mm). These are Whittet-Higgins' maximum sizes from its spec sheet.
What thread does the TLN-03 fit?
The Whittet-Higgins TLN-03 fits a 0.664-32 right-hand shaft thread (16.87 mm, 32 threads per inch).
Does the TLN-03 need a lockwasher?
No. The Whittet-Higgins TLN-03 locks itself: tangential set screws clamp the nut onto the shaft thread. It needs no lockwasher and no keyway in the shaft.
What temperature can the TLN-03 take?
Whittet-Higgins rates the Tangentlok TLN series (inch) for up to 300 °F (149 °C).
What is the TLN-03 made of?
Base threaded nut: carbon steel; Fasteners: hardened alloy.
Is there a drawing or CAD model of the TLN-03?
Yes. Whittet-Higgins publishes a part print (PDF) and a 3D CAD model (STEP) for the TLN-03. The drawing on this page is made from the same catalog dimensions.
How do I install the TLN-03?
Follow Whittet-Higgins' assembly instructions for this part (PDF).
Is this a genuine Whittet-Higgins locknut?
Yes. Apollo Industries is an authorized Whittet-Higgins retailer, and every Whittet-Higgins part we sell is genuine, made by Whittet-Higgins in Central Falls, Rhode Island, USA.
Do you ship the TLN-03 the same day?
In-stock orders placed by 3 PM EST ship the same day. All orders over $100 ship free by ground with code FREESHIP.
Can I get quantity pricing or buy tax-exempt?
Yes. Apollo offers special rates for businesses and bulk orders. Use Request a quote on this page or call (248) 429-9073.
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