Whittet Higgins CNF22-12S One Piece Clampnut UNF Fine Thread - Stainless Steel
- T 1.375-12
- D 2.250″
- B 0.563″
Genuine Whittet-Higgins product, Whittet-Higgins
- Regular price
- $33.83
- Sale price
- $33.83
- Regular price
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Quantity pricingApplied at checkout
- 20–49 5% off$32.14 ea
- 50–99 8% off$31.12 ea
- 100–199 15% off$28.76 ea
- 200–499 18% off$27.74 ea
- 500+ 25% off$25.37 ea
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Whittet-Higgins CNF22-12S
$33.83
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
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Expert support
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2695 Lake George RdOxford, MI 48370
Overview
Whittet-Higgins CNF22-12S Fine thread
The Whittet-Higgins CNF22-12S is a one-piece, fine-thread (UNF) clampnut that mechanically self-locks to position and preload bearings, sleeves and other components on a threaded shaft. It locks by tightening a tangential (X-axis) socket-head cap screw, which clamps the base nut onto the shaft thread to resist loosening from vibration, shock and torque while still allowing infinite adjustment and preloading.
Because it secures without damaging the shaft threads and needs no keyway, the CNF22-12S eliminates the traditional locknut-and-lockwasher pairing and installs faster. The standard CNF nut pairs a carbon steel base nut with a hardened alloy clamp screw and a black-oxide-with-wax finish, is rated to 300°F, and offers greater axial strength and finer adjustment than the coarse-thread CNC series. Stainless steel and aluminum alloy versions are also available.
Key features
- One-piece fine-thread (UNF) clampnut; greater axial strength and finer adjustment than the coarse-thread CNC series
- Mechanical self-locking via a tangential (X-axis) socket-head clamp screw
- Infinite adjustment and preloading capability; resists loosening from vibration, shock and torque
- Does not damage shaft threads and eliminates the need to cut or repair a shaft keyway
- Replaces traditional locknut and lockwasher for easier, faster installation
- Carbon steel base nut with hardened alloy clamp screw; black oxide coating with wax finish to resist corrosion
- Maximum operating temperature 300°F
- Manufactured in the USA and RoHS compliant
- Also offered in stainless steel and aluminum alloy versions
Specifications
Whittet-Higgins CNF22-12S dimensions & specifications
- PDFCNF22-12S part print (opens in a new tab)
- STEP3D CAD model (opens in a new tab)
- PDFCNF series spec sheet (opens in a new tab)
Files from Whittet-Higgins. They open in a new tab.
- Type
- One-piece clampnut
- Thread T
- 1.375-12 (34.92 mm, 12 threads per inch)
- Outside diameter (max.) D
- 2.250 in (57.15 mm)
- Face diameter (max.) F
- 1.719 in (43.66 mm)
- Width (max.) B
- 0.563 in (14.30 mm)
- Theoretical axial load
- 37,100 lbf (165.0 kN)
- Socket head cap screw
- 1/4-28
- Suggested screw torque
- 150 in-lb (16.9 N·m)
- Material
- Stainless Steel
- Country of origin
- USA
- Series
- One-piece clampnut CNF series (stainless)
- Weight
- 0.36 lb
- Brand
- Whittet-Higgins
- Part number
- CNF22-12S also written CNF2212S
- UPC / EAN
- 751968242222
Same size, other versions
Other versions of the CNF22-12S
The same size in other Whittet-Higgins series: left-hand thread, stainless steel, high strength, precision or self-locking designs.
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Whittet-Higgins
CNF22-12Whittet Higgins CNF22-12 One Piece Clampnut UNF Fine Thread - Steel
One-piece clampnut CNF series (fine)
$17.01
In stock
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Whittet-Higgins
CNF22-12AWhittet Higgins CNF22-12A One Piece Clampnut UNF Fine Thread - Aluminum
One-piece clampnut CNF series (aluminum)
$15.55
In stock
-
Whittet-Higgins
SNF22-12Whittet higgins SNF22-12 Splitnut UNF Fine Thread - Steel
Two-piece clampnut SNF series (fine)
$55.67
In stock
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Whittet-Higgins
SNF22-12SWhittet higgins SNF22-12S Splitnut UNF Fine Thread - Stainless Steel
Two-piece clampnut SNF series (stainless)
$130.20
Call for availability
Part number explained
What every part of CNF22-12S means
- CNF
- One-piece clampnut, One-piece clampnut CNF series (stainless)
- 22-12
- Size 22-12: 1.375-12 thread
- S
- Stainless steel
Catalogs & documents
Whittet-Higgins CNF22-12S catalogs & documents
Official catalogs and data from the manufacturer. They open as PDFs in a new tab.
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Product document
UNF Series Fine Thread - Stainless Steel 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
CNF22-12S questions & answers
What size is the Whittet-Higgins CNF22-12S?
The Whittet-Higgins CNF22-12S is a one-piece clampnut. Thread: 1.375-12 (34.92 mm, 12 threads per inch). Outside diameter: 2.250 in (57.15 mm). Face diameter: 1.719 in (43.66 mm). Width: 0.563 in (14.30 mm). These are Whittet-Higgins' maximum sizes from its spec sheet.
What thread does the CNF22-12S fit?
The Whittet-Higgins CNF22-12S fits a 1.375-12 right-hand shaft thread (34.92 mm, 12 threads per inch).
Does the CNF22-12S need a lockwasher?
No. The Whittet-Higgins CNF22-12S locks itself: a cap screw closes the nut's slit and clamps it onto the thread. It needs no lockwasher and no keyway in the shaft.
What temperature can the CNF22-12S take?
Whittet-Higgins rates the One-piece clampnut CNF series (stainless) for up to 300 °F (149 °C).
What is the CNF22-12S made of?
Base threaded nut: stainless steel; Fastener: stainless steel.
Is there a drawing or CAD model of the CNF22-12S?
Yes. Whittet-Higgins publishes a part print (PDF) and a 3D CAD model (STEP) for the CNF22-12S. The drawing on this page is made from the same catalog dimensions.
How do I install the CNF22-12S?
Follow Whittet-Higgins' assembly instructions for this part (PDF).
Is this a genuine Whittet-Higgins clampnut?
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 CNF22-12S 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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