Scribd
Upload
157 views1 page

Hex Acorn Cap Nuts Specs & Sizes

This document provides technical specifications for one-piece and two-piece hex acorn cap nuts. It includes dimensions for nominal nut sizes from #4 to 7/8 inch. The nuts are typically made of steel, though stainless steel options are available. Acorn cap nuts serve decorative and protective purposes by covering projecting threads. Steel nuts must meet chemical composition requirements for carbon, phosphorus, and sulfur content. Finishing options for steel nuts include nickel plating, black zinc, and black oxide.

Uploaded by

MAI_Quality
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
157 views1 page

Hex Acorn Cap Nuts Specs & Sizes

This document provides technical specifications for one-piece and two-piece hex acorn cap nuts. It includes dimensions for nominal nut sizes from #4 to 7/8 inch. The nuts are typically made of steel, though stainless steel options are available. Acorn cap nuts serve decorative and protective purposes by covering projecting threads. Steel nuts must meet chemical composition requirements for carbon, phosphorus, and sulfur content. Finishing options for steel nuts include nickel plating, black zinc, and black oxide.

Uploaded by

MAI_Quality
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 1

Tel: 1-800-479-0056

Fax: 1-888-411-2841
Email: aspensales@aspenfasteners.com
Web: http://www.aspenfasteners.com/

F
A

G H
T U
Q

One Piece Hex Acorn Cap Nuts, Low Crown – Technical Specifications SAE J483

F G A H Q T U
Nominal Size or Basic
Major Diameter of Width Across Flats Width Across Corners Drill Depth Full Thread
Body Dia Overall Hexagon
Thread Height Height
Max Min Max Min Max Min

#6 0.1380 0.3125 0.302 0.361 0.344 0.30 0.34 0.16 0.25 0.16
#8 0.1640 0.3125 0.302 0.361 0.344 0.30 0.34 0.16 0.25 0.16
#10 0.1900 0.3750 0.362 0.433 0.413 0.36 0.41 0.19 0.28 0.19
1/4" 0.2500 0.4375 0.428 0.505 0.488 0.41 0.47 0.22 0.34 0.25
5/16” 0.3125 0.5000 0.489 0.577 0.557 0.47 0.53 0.25 0.41 0.31
3/8” 0.3750 0.5625 0.551 0.650 0.628 0.53 0.62 0.28 0.45 0.38
1/2" 0.5000 0.7500 0.736 0.866 0.840 0.72 0.81 0.38 0.59 0.50
5/8” 0.6250 0.9375 0.922 1.083 1.051 0.91 1.00 0.47 0.75 0.62
3/4" 0.7500 1.0625 1.045 1.227 1.191 1.03 1.16 0.53 0.88 0.75

Two Piece Hex Acorn Cap Nuts


F G H
Nominal Size or Basic Major
Width Across Flats Width Across Corners Overall Height
Diameter of Thread
Max Min Max Min Max Min
#4 0.1120 0.248 0.225 - - 0.200 0.177
#5 0.1250 0.3125 0.302 0.361 0.344 0.260 0.240
#6 0.1380 0.3125 0.302 0.361 0.344 0.260 0.240
#8 0.1640 0.3125 0.302 0.361 0.344 0.260 0.240
#10 0.1900 0.3750 0.362 0.433 0.413 0.291 0.271
1/4" 0.2500 0.4375 0.423 0.505 0.482 0.338 0.318
5/16” 0.3125 0.562 0.545 0.650 0.621 0.385 0.365
3/8” 0.3750 0.625 0.607 0.722 0.692 0.432 0.412
7/16” 0.4375 0.673 0.659 0.775 0.750 0.680 0.660
1/2" 0.5000 0.750 0.736 0.866 0.840 0.572 0.552
9/16” 0.5625 0.875 0.861 1.010 0.982 0.482 0.462
5/8” 0.6250 0.938 0.909 1.083 1.037 0.807 0.787
3/4' 0.7500 1.12 1.08 - - 1.12 1.08
7/8” 0.8750 1.250 1.212 1.443 1.382 1.420 1.380

Description Steel - The low-crown acorn cap nut is usually manufactured in two pieces, a hex nut and an acorn-shaped top, zinc die cast to
form the finished part. Stainless: Similar in design but made from an austenitic stainless alloy. Nuts may be one or two-piece style.

Applications/
Acorn cap nuts serve two main purposes: decorative pieces, and to cover projecting threads.
Advantages

Material Steel: Nuts shall be made from a low-carbon steel which conforms to the following chemical composition requirements. Carbon:
0.47% max.; Phosphorus: 0.12% max.; Sulfur: 0.23% max.. Stainless: 304L or equivalent.

Plating Steel hex acorn cap nuts are available with the following finishes: nickel plated, black zinc and black oxide

You might also like