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SLOTTED NUT DIMENSIONS (INCH SERIES)

Slotted Nut Sizes and Dimensions Chart according to ASME B18.2.2-1987 standard.

Hex slotted nut is a hexagonal shape nut with slots on the top. These slots make it possible to insert a split pin (or cotter pin) and secure the nut in place.

Heavy hex slotted nuts are slightly thicker and larger than Hex slotted nuts. They are generally used for large diameter bolts.

Hex thick slotted nuts are higher than Hex slotted nuts. They are generally used where longer engagement length is needed.

Some important notes from the ASME B18.2.2:

- The diameter range of hex slotted and hex thick slotted nuts is from ¼ to 1 1/2 inches according to standard. For heavy hex slotted nuts, the range is the range is from ¼ to 4 inches.

- Threads shall be Unified inch coarse, fine or 8 thread series with tolerance class of 2B (UNC, UNF, or UN-8).

- Unless otherwise specified, chemical and mechanical properties of steel nuts shall conform with ASTM A563 Grade A, Carbon and Alloy Steel Nuts; or Grade 2 of SAE J995, Mechanical and Material Requirements for Steel Nuts. Nuts of other materials such as stainless steel, brass, bronze, and aluminum alloys shall have properties as agreed upon between the manufacturer and purchaser. The properties for nuts of several grades of stainless steel alloys are covered in ASTM F 594, and of several nonferrous materials in the ASTM F 467.

- Nuts in sizes 5/8 in. (for heavy ones, this size is 7/16 in.) nominal size and smaller shall be double chamfered. Larger size nuts shall be double chamfered or have washer faced bearing surface and chamfered top.

Slotted Nut Sizes and Dimensions Chart:

INPUT PARAMETERS

Nominal diameter (inches)

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Nut Type

Hex Slotted Nuts

Heavy Hex Slotted Nuts

Hex Thick Slotted Nuts

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RESULTS
Parameter		Value (inch)
Product Name	--	---
Nominal Diameter	d	---
Width Across Flats [F]	宝贝好难受动一动它宝贝好难受动一动它,波野多结衣办公室链接波野多结衣办公室链接,保健品女性品牌大全保健品女性品牌大全 F_basic	---
	F_max	---
	F宝贝好难受动一动它宝贝好难受动一动它,波野多结衣办公室链接波野多结衣办公室链接,保健品女性品牌大全保健品女性品牌大全_min	---
Width Across Corners [G]	G_max	---
Width Across Corners [G]	G_min	---
Thickness Hex Nuts [H]	H_basic	---
	H_max	---
	H_min	---
Unslotted Thickness [T]	T_max	---
Unslotted Thickness [T]	T_min	---
Width of Slot [S]	S_max	---
Width of Slot [S]	S_min	---

Definitions:

Unified Screw Thread: A thread form used by the United Kingdom, Canada, and the United States to obtain screw thread interchangeability among these three nations. It has 60° thread angle and dimensions are stated in inch units.

UN form screw threads: The UN thread is intended for general purpose fastening operations.

UNC (Unified National Coarse): Most commonly used type for general engineering applications. This thread form is used in materials with low tensile strength which makes threads more resistance against stripping (internal threads) .UNC give possibility for quick assembly.

UNF (Unified National Fine): External threads of this Fine Series have greater tensile stress area than comparable sizes of the coarse series. The Fine series is suitable when the resistance to stripping of both external and mating internal threads equals or exceeds the tensile load carrying capacity of the externally threaded member. It is also used where the length of engagement is short, where a smaller lead angle is desired, where the wall thickness demands a fine pitch, or where finer adjustment is needed.宝贝好难受动一动它宝贝好难受动一动它,波野多结衣办公室链接波野多结衣办公室链接,保健品女性品牌大全保健品女性品牌大全

UNEF (Unified National Extra Fine): Used when finer pitches than UNF are needed (Ex: Short engagement length).

UNS (Unified National Special): UNS are special series. Bolt / screw selection shall be done from standard series unless there is a special requirement to use a special series.

Thread class: A classification system to classify the threads for interchangeability and manufacturability. Class 1 threads are loosely fitting thread and used for ease of assembly. Most commonly used class is 2 and this class is designed for general use. Class 3 is used for closer tolerances.

Thread Gages and Gauging : Specifications and dimensions for the gages used on Unified inch screw thread is defined in the ANSI/ASME B1.2-1983 standard. Types of gages including thread plug gages, snap gages, thread ring gages and plain diameter gages for internal and external threads are covered in same standard. Screw thread gauging systems for acceptability is covered in the ASME B1.3-2007 standard.

Supplements:

Link	Usage
Unified Inch Screw Thread Sizes & Tolerances Calculator	Calculates basic major, minor and pitch diameters of the external (bolt) and internal (nut) inch thread according to ASME B1.1-2003 standard. In addition to basic size calculations, limits of sizes calculations of different tolerance classes can be done according to same standard.

Reference:

Oberg, E. , Jones ,F.D. , Horton H.L. , Ryffel H.H., (2016) . Machinery's Handbook . 30th edition. Industrial Press Inc. , pp 1597
ASME B18.2.2-1987, Square and Hex Nuts (Inch Series)