20 Best Button Head Cap Screw 1 4 20 [2024]

Are you looking for the best Button Head Cap Screw 1 4 20? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Button Head Cap Screw 1 4 20.

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1 1/4-20 Hex Button Head Cap Screw, VIGRUE 300pcs 304 Stainless Steel UNC Hexagon Bolts Flat Washers... 1/4-20 Hex Button Head Cap Screw, VIGRUE 300pcs 304 Stainless Steel UNC Hexagon Bolts Flat...
2 LC LICTOP Button Head Socket Cap Screws 1/4-20 3/4' Allen Hex 304 Stainless Steel Bolts 50 Pack LC LICTOP Button Head Socket Cap Screws 1/4-20 3/4" Allen Hex 304 Stainless Steel Bolts 50 Pack
3 1/4-20 x 3/4' Button Head Socket Cap Bolts Screws, 304 Stainless Steel 18-8, Allen Hex Drive, Bright... 1/4-20 x 3/4" Button Head Socket Cap Bolts Screws, 304 Stainless Steel 18-8, Allen Hex Drive,...
4 1/4-20 x 1/2' Button Head Socket Cap Bolts Screws, 18-8 Stainless Steel (304), Bright Finish, Full... 1/4-20 x 1/2" Button Head Socket Cap Bolts Screws, 18-8 Stainless Steel (304), Bright Finish,...
5 Stainless Steel 1/4-20 Bolts and Nuts Set Assortment Kit 18-8 Fully Threaded Button Head Hex Socket... Stainless Steel 1/4-20 Bolts and Nuts Set Assortment Kit 18-8 Fully Threaded Button Head Hex...
6 Socket Head Cap Screw, 1/4-20 x 1', Alloy Steel, Black Oxide, Hex Socket Coarse Thread, 1/4 inch... Socket Head Cap Screw, 1/4-20 x 1", Alloy Steel, Black Oxide, Hex Socket Coarse Thread, 1/4 inch...
7 1/4-20 x 3/4' Button Head Socket Cap Screws, Allen Socket Drive, Black Oxide, Grade 10.9 Alloy... 1/4-20 x 3/4" Button Head Socket Cap Screws, Allen Socket Drive, Black Oxide, Grade 10.9 Alloy...
8 VIGRUE 305Pcs 1/4-20 Button Head Socket Cap Screw Bolts Nuts Washers Assortment Kit, Length 3/8' to... VIGRUE 305Pcs 1/4-20 Button Head Socket Cap Screw Bolts Nuts Washers Assortment Kit, Length 3/8"...
9 Button Head Socket Cap Screws, 1/4-20 x 1 Inches Allen Socket Drive, Alloy Steel, Black... Button Head Socket Cap Screws, 1/4-20 x 1 Inches Allen Socket Drive, Alloy Steel, Black...
10 iExcell 50 Pcs SAE 1/4-20 x 3/8' 1/2' 5/8' 3/4' 1' Stainless Steel 304 Hex Socket Head Cap Screws... iExcell 50 Pcs SAE 1/4-20 x 3/8" 1/2" 5/8" 3/4" 1" Stainless Steel 304 Hex Socket Head Cap Screws...
11 iexcell 50 Pcs SAE 1/4-20 x 3/8, 1/2, 5/8, 3/4, 1 UNC Threads Stainless Steel 304 Hex Socket Button... iexcell 50 Pcs SAE 1/4-20 x 3/8, 1/2, 5/8, 3/4, 1 UNC Threads Stainless Steel 304 Hex Socket...
12 90 PCS Button Head Socket Head Cap Screws Bolts Assortment Kit, 1/4-20 UNC x 1/2',3/4',1',1-1/4',... 90 PCS Button Head Socket Head Cap Screws Bolts Assortment Kit, 1/4-20 UNC x 1/2",3/4",1",1-1/4",...
13 1/4-20 x 3 Inch Button Head Socket Cap Screws (10 pc) 18-8 Stainless Steel Bolts 1/4-20 x 3 Inch Button Head Socket Cap Screws (10 pc) 18-8 Stainless Steel Bolts
14 Socket Button Head Cap Screw, 1/4-20 x 1/2', Alloy Steel, Black Oxide, Hex Socket (Quantity: 100)... Socket Button Head Cap Screw, 1/4-20 x 1/2", Alloy Steel, Black Oxide, Hex Socket (Quantity: 100)...
15 1/4-20 x 1/2', 3/4', 1', 1-1/4', 1-1/2' Button Head Socket Screws, Stainless Steel 18-8, Allen Hex... 1/4-20 x 1/2", 3/4", 1", 1-1/4", 1-1/2" Button Head Socket Screws, Stainless Steel 18-8, Allen...
16 1/4-20 Bolts Stainless Steel 18-8 Fully Threaded Button Head Hex Socket Cap Screws 1/4-20 x 1/2'... 1/4-20 Bolts Stainless Steel 18-8 Fully Threaded Button Head Hex Socket Cap Screws 1/4-20 x 1/2"...
17 JQK 1/4-20 x 1 Button Head Socket Cap Screws, Allen Socket Drive,1/4 x 5/8 OD Fender Flat Washer,... JQK 1/4-20 x 1 Button Head Socket Cap Screws, Allen Socket Drive,1/4 x 5/8 OD Fender Flat Washer,...
18 1/4-20 x 3/4' Button Head Socket Cap Screws, Allen Socket Drive, Stainless Steel 18-8, Full Thread,... 1/4-20 x 3/4" Button Head Socket Cap Screws, Allen Socket Drive, Stainless Steel 18-8, Full...
19 KINJOEK 100 Packes 1/4-20 x 1 Inch Button Head Socket Cap Screws, Allen Socket Drive, 304 Stainless... KINJOEK 100 Packes 1/4-20 x 1 Inch Button Head Socket Cap Screws, Allen Socket Drive, 304...
20 1/4-20 x 1/2' Button Head Socket Cap Bolts Screws, 18-8 Stainless Steel, Bright Finish, Full Thread,... 1/4-20 x 1/2" Button Head Socket Cap Bolts Screws, 18-8 Stainless Steel, Bright Finish, Full...
Bestseller No. 1
1/4-20 Hex Button Head Cap Screw, VIGRUE 300pcs 304 Stainless Steel UNC Hexagon Bolts Flat Washers...
  • 🔧Great Performance: The kit is made of 304 stainless steel, which features strength and offers good corrosion resistance in bad environment like...
  • 🔧1/4-20 UNC Series Meet Daily Needs: The set includes 1/4-20 x 3/8" 1/2" 5/8" 3/4" 1" 1-1/2" 1-1/4" 2"UNC thread hex button head screws washers and...
  • 🔧Fine Workmanship:The nuts and flat washers expand the contact area and reduce the pressure in order to protect the screws and parts. Compact and...
  • 🔧Easy to Store with Upgraded Box: The bolts and nuts come in a portable firm box with corresponding label. It is convenient for you to put away and...
  • 🔧Reliable Service: VIGRUE provide service for our product quality problem, if you're unhappy with our product for any reason, please feel free to...
Bestseller No. 2
LC LICTOP Button Head Socket Cap Screws 1/4-20 3/4" Allen Hex 304 Stainless Steel Bolts 50 Pack
  • ✔ Product Contain: 50 Pcs Button Head Screws
  • ✔ Product Features: Drive Type: Hex Socket; Head Style: Button Head; Main Color: Silver Tone
  • ✔ Product Material: Made of 304 stainless steel, anti-corrosion, longer than the screw made of ordinary materials.
  • ✔ Product Size: Thread Size: 6 x 19mm/1/4" x 3/4"(D*L);Head Size: 11 x 5mm/0.43" x 0.2"(D*T); Overall Size: 11 x 24mm/0.4" x 0.9"(D*L)
  • ✔ Scope of application: Used widely in the home and office appliance, communication equipments, ship assembly and other machinery industry.
Bestseller No. 3
1/4-20 x 3/4" Button Head Socket Cap Bolts Screws, 304 Stainless Steel 18-8, Allen Hex Drive, Bright...
  • Allen Hex Drive Size: 5/32"(0.156")
  • Thread Size:1/4-20; Thread Type: 20 TPI Coarse Thread (UNC); Thread Style: Right Hand; Thread Coverage: Full Thread
  • Exterior Finish: Bright Finish; Color: Silver Tone; Package Included: 25 PCS
  • Diameter of the Head: 0.437 inch; Height of the Head: 0.132 inch; Screw Length: 3/4 inch or 19mm (measured from under the head)
  • Made of 304 stainless steel (no coating outside) 18-8 which is superior to regular steel and any zinc plated fasteners, provides good strength and...
Bestseller No. 4
1/4-20 x 1/2" Button Head Socket Cap Bolts Screws, 18-8 Stainless Steel (304), Bright Finish, Full...
  • Material: High Quality Stainless Steel 18-8, with high level of chemical and corrosion proof.
  • Measure System: Inch. Pitch Size: 20 TPI (Coarse Thread).
  • Thread Diameter 1/4", Head Diameter 0.437", Head Height 0.132", Screw Length 1/2", Allen Hex Drive 5/32".
  • Package Included: 50 x Button Head Socket Cap Screws 1/4-20 x 1/2 Inch
  • Button Head Socket Screws are great to have around for use in wood and wet environments.
Bestseller No. 5
Stainless Steel 1/4-20 Bolts and Nuts Set Assortment Kit 18-8 Fully Threaded Button Head Hex Socket...
  • 10-Piece of 1/4-20 x 1/2" bolts; 10-Piece of 1/4-20 x 3/4" bolts; 10-Piece of 1/4-20 x 1" bolts; 10-Piece of 1/4-20 x 1-1/4" bolts; 10-Piece of 1/4-20...
  • 1/4-20 Bolts Head Diameter: 0.432"; 1/4-20 Bolts Head Height: 1/4 Inch0.13"; 1/4-20 Bolts Drive Type: Allen Hex Socket 5/32". [ When specifying the...
  • 1/4-20 bolts and nuts kit can be used to fasten wood to wood, wood to metal or metal to metal applications, be sure to the same threads, grade and...
  • With 304 Stainless Steel construction, these Hex Socket Cap Screws offer high resistance to corrosion, making them ideal for use in water, humidity,...
  • We have the bolts, nuts, washers and other fasteners you need for general maintenance and construction.
Bestseller No. 6
Socket Head Cap Screw, 1/4-20 x 1", Alloy Steel, Black Oxide, Hex Socket Coarse Thread, 1/4 inch...
  • Thread: Coarse / Full Thread / Alloy Steel / Black Oxide
  • Recommended Hex Socket Allen Key Wrench: 3/16
  • Black Oxide is not a protective finish and will rust if exposed to moisture.
  • Fits all common climbing holds: Our climbing bolts will fit in all standard climbing holds on the market today. We offer different length packs to...
  • Stainless Steel material is recommended for environments with moisture
Bestseller No. 7
1/4-20 x 3/4" Button Head Socket Cap Screws, Allen Socket Drive, Black Oxide, Grade 10.9 Alloy...
  • The button head socket screws are 100% alloy steel grade 10.9.
  • The low profile of the socket button head makes a very clean looking, and offers a much larger contact surface.
  • Thread Diameter 0.25"; Head Diameter 0.437"; Head Height 0.132"; Screw Length 0.75"; Pitch Size 20 Threads per Inch; Allen Hex Drive 0.156" (5/32").
  • Package Included: 50 x Button Head Socket Bolts/Screws.
  • Button Head Socket Screws are great to have around for use in wood and wet environments.
Bestseller No. 8
VIGRUE 305Pcs 1/4-20 Button Head Socket Cap Screw Bolts Nuts Washers Assortment Kit, Length 3/8" to...
  • √ Head Type: Button; Dia./Thread Size: 1/4"-20; Head Dia.: 0.437"; Head Height: 0.132"; Drive Type: Hex; Driver Size: 5/32 in.
  • √ Screw Length: 1/4-20x3/8",1/4-20x1/2",1/4-20x5/8",1/4-20x3/4",1/4-20x1",1/4-20x1-1/4",1/4-20x1-1/2" Button Head Screws/Bolts with matching washers...
  • √ Quantity: Contains 305pcs/7 sizes of the most commonly used 12.9 Alloy Steel Button Head Socket Screws/Bolts Nuts Washers.
  • √ Application thread sizes and head types vary, it's important to select the right screws and nuts to meet your needs, VIGRUE screw set help you out...
  • √ GUARANTEE in VIGRUE: Whenever you need us, please contact us by email or Q&A. Satisfaction guaranteed. Money back or exchange.Accept Customization
Bestseller No. 9
Button Head Socket Cap Screws, 1/4-20 x 1 Inches Allen Socket Drive, Alloy Steel, Black...
  • Thread Diameter 0.250"
  • Head Diameter 0.437"
  • Head Height 0.132"
  • Allen Hex Drive Size 5/32"
  • Xujia Brand Alloy Steel Fasteners are backed by Fasteners's Industry leading customer service and Guaranteed Satisfaction. These Fasteners offer a...
Bestseller No. 10
iExcell 50 Pcs SAE 1/4-20 x 3/8" 1/2" 5/8" 3/4" 1" Stainless Steel 304 Hex Socket Head Cap Screws...
  • ✔ Screw Head: Socket Cap, Screw Drive:Hex Socket, Hex Size 3/16"
  • ✔ Head Dia.: 3/8";Head Height: 1/4";Thread Dia. 1/4";Pitch: 20 Threads Per Inch
  • ✔ 5 Sizes: 1/4-20 x 3/8",1/4-20 x 1/2",1/4-20 x 5/8",1/4-20 x 3/4",,1/4-20 x 1"
  • ✔ Thread Length: 3/8", 1/2", 5/8", 3/4",1"; Total Length: 5/8", 3/4", 7/8", 1",1-1/2"
  • ✔ Package: 50 Pcs 1/4-20UNC Hex Socket Head Cap Screws, Come in a Plastic Storage Case
Bestseller No. 11
iexcell 50 Pcs SAE 1/4-20 x 3/8, 1/2, 5/8, 3/4, 1 UNC Threads Stainless Steel 304 Hex Socket Button...
  • ✔ Includes 50 Pcs, 5 Sizes, Hex Socket Button Head Cap Screws: 1/4-20 x 3/8, 1/4-20 x 1/2, 1/4-20 x 5/8, 1/4-20 x 3/4, 1/4-20 x 1; Screw Head Style...
  • ✔ Material of Screws: Stainless Steel 304, High Strength and Anti-corrosion in Various Environments
  • ✔ Includes 1 Pcs Hex Key, Hex Size: 5/32", to Drive These Screws Conveniently and Easily
  • ✔ Material of Hex Key: Chrome-Vanadium Steel, Nickel Plated, Higher Strength And Anti-rust
  • ✔ Package: These Screws and one Hex Key Packed In a Sturdy Easy-use Plastic Storage Box, Organized Conveniently and Easily
Bestseller No. 12
90 PCS Button Head Socket Head Cap Screws Bolts Assortment Kit, 1/4-20 UNC x 1/2",3/4",1",1-1/4",...
  • Sizes Included: 1/4-20 x 1/2"(20 PCS), 1/4-20 x 3/4"(20 PCS), 1/4-20 x 1"(20 PCS), 1/4-20 x 1-1/4"(15 PCS), 1/4-20 x 1- 1/2"(15 PCS), come in an...
  • Head Style: Button Head; Allen Hex Drive Size: 5/32"
  • Thread Diameter: 1/4"; Head Diameter: 7/16"; Head Height: 1/8"; Thread Pitch: 20 TPI
  • 100% Stainless steel 304(18-8) provides good strength and corrosion resistance in bad environments.
  • Most commonly used sizes and a free allen wrench (key) inside helps you save your time and money.
Bestseller No. 13
1/4-20 x 3 Inch Button Head Socket Cap Screws (10 pc) 18-8 Stainless Steel Bolts
  • Material: 18-8 (304) Stainless Steel; good rust resistance, ensuring quality and longevity
  • Thread Diameter 0.25", Head Diameter 0.4",
  • Thread Pitch: 1/4-20
  • Drive Type: Hex Socket
  • Main Color: Silver Tone
Bestseller No. 14
Socket Button Head Cap Screw, 1/4-20 x 1/2", Alloy Steel, Black Oxide, Hex Socket (Quantity: 100)...
  • Thread: Coarse / Full Thread / Alloy Steel / Black Oxide
  • Recommended Hex Socket Allen Key Wrench: 5/32
  • Black Oxide is not a protective finish and will rust if exposed to moisture. Stainless Steel material is recommended for environments with moisture
Bestseller No. 15
1/4-20 x 1/2", 3/4", 1", 1-1/4", 1-1/2" Button Head Socket Screws, Stainless Steel 18-8, Allen Hex...
  • The button head socket screws are 100% stainless steel 18-8 which offers a high level of chemical and corrosion resistance. The corrosion proof steel,...
  • Screw Head Style: Socket Cap; Screw Drive Style: Allen Hex Drive 0.156" (5/32").
  • Thread Diameter 0.25"; Head Diameter 0.437"; Head Height 0.132"; Pitch Size: 20 TPI (UNC).
  • Package Included: 1/4-20 x 1/2" (10 PCS), 1/4-20 x 3/4" (10 PCS), 1/4-20 x 1" (10 PCS), 1/4-20 x 1-1/4" (10 PCS), 1/4-20 x 1-1/2" (10 PCS).
  • Button Head Socket Screws are great to have around for use in wood and wet environments.
Bestseller No. 16
1/4-20 Bolts Stainless Steel 18-8 Fully Threaded Button Head Hex Socket Cap Screws 1/4-20 x 1/2"...
  • 40-Piece of 1/4-20 bolts screws INCLUDING 8-Piece of 1/4-20 x 1/2" bolts; 7-Piece of 1/4-20 x 3/4" bolts; 5-Piece of 1/4-20 x 1" bolts; 5-Piece of...
  • Head Diameter: 0.432"; Head Height: 1/4 Inch0.13"; Drive Type: Allen Hex Socket 5/32". [ When specifying the length of a headed bolt, the thickness of...
  • 1/4-20 bolts kit can be used to fasten wood to wood, wood to metal or metal to metal applications, be sure to the same threads, grade and finish...
  • With 304 Stainless Steel construction, these Hex Socket Cap Screws offer high resistance to corrosion, making them ideal for use in water, humidity,...
  • We have the bolts, nuts, washers and other fasteners you need for general maintenance and construction.
Bestseller No. 17
JQK 1/4-20 x 1 Button Head Socket Cap Screws, Allen Socket Drive,1/4 x 5/8 OD Fender Flat Washer,...
  • 【All 304 18-8 SS】 T-304 premium-grade stainless steel for protect against corrosion & rust.
  • 【Buy 25 sets one click to save your time】 Package include 25 screws, 25 nuts, 50 fender washers, no need to find correct hardware.
  • 【Suit for 0 - 21/32" Thick】Hex lock nuts are very strong and are great for both indoor and outdoor use.
  • 【Will not Loose】Nylon insert, our lock nuts greatly reduce loosening under vibrations and torque.
  • 【1/4" x 5/8" OD Fender Washer】Perfect for applications that require a larger amount of pressure distribution such as drywall, fencing, mounting...
Bestseller No. 18
1/4-20 x 3/4" Button Head Socket Cap Screws, Allen Socket Drive, Stainless Steel 18-8, Full Thread,...
  • -1/4-20 Thread Size
  • -5/32" Allen Hex Drive
  • -3/4" Length, Fully threaded
  • -18-8 Stainless Steel, High Quality, provides great strength and protection against corrosion to make these fasteners last!
  • -Qty: 25
Bestseller No. 19
KINJOEK 100 Packes 1/4-20 x 1 Inch Button Head Socket Cap Screws, Allen Socket Drive, 304 Stainless...
  • 304 STAINLESS STEEL - The hexagon socket head cap screws are made of reinforced stainless steel 304 material with high hardness and corrosion...
  • EASY TO USE - The hexagonal design is easy to install and the high-strength material avoids hex design damage. Ensure safe installation and removal.
  • DIMENSIONS - Thread diameter: 1/4 inch; thread pitch: 20; high precision thread for quick installation and durability. If you use a low precision...
  • WIDELY COMPATIBLE - These button head socket cap screws are a perfect replacement for old screws and can be used on a wide range of machines such as...
  • SATISFACTORY SERVICE - If you have any questions about our socket cap screws or after-sales problems, please contact us in time, we will give you...
Bestseller No. 20
1/4-20 x 1/2" Button Head Socket Cap Bolts Screws, 18-8 Stainless Steel, Bright Finish, Full Thread,...
  • The button head socket screws are 100% stainless steel 18-8 (304) which offers a high level of chemical and corrosion resistance. The corrosion proof...
  • The low profile of the socket button head makes a very clean looking, and offers a much larger contact surface.
  • MewuDecor screws are great for use with sheet metal and wet environments. They are strong, corrosion proof, and will support all of your project...
  • Package Included: 25 x Button Head Socket Bolts/Screws
  • Button Head Socket Screws are great to have around for use in wood and wet environments.

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FAQ:

Q: What does cap screw mean?

A: cap screw. noun. a fastener for machine parts, threaded along the whole length of its shank and held by threads tapped in the hole in which it is screwed.

Q: What is a button head screw?

A: Button Head Screws are feature a low-profile domed head. Due to their unique head shape, these fasteners are sometimes called Dome Screws or Round Head Screws. Button Head Screws have a relatively large head diameter, which allows for a larger drive type to be used.

Q: What is a head cap screw?

A: A cap screw, by definition, is a machine bolt or screw that is threaded the to the cap and is normally fastened to a threaded hole rather than a nut. The picture of the “socket-head cap screw” accompanying this article would actually be a socket-head bolt, according to traditional definition.

Q: What is hex head cap screw?

A: The hex head cap screw is a common fastener in construction and machine assembly. The screw head is designed to fit a ratchet or spanner torque wrenches allowing you to tighten the screw to your exact specifications.