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Flat Head Socket Cap Screws, Inch

Flat Head Socket Screws, also known as flat head cap screws, are the fastener of choice in high precision, high strength assemblies requiring a finely tooled appearance. The V-shaped 82° head allows the screw to be countersunk into the mating surface material, affording a completely flush profile. Flat head socket screws' alloy composition and heat treatment result in exceptionally high tensile and yield strength. Because of these design advantages, flat head socket screws may be comparable in strength to the next larger diameter of a common, low-carbon steel flat head machine screw. The increased strength of flat head socket cap screws means fewer screws are required in some assemblies to achieve specific clamp loads, reducing weight and cost.

Your Source for Flat Head Socket Screws in Bulk

Empire Bolt & Screw is a trusted supplier of premium fastening products, including flat head socket screws in inch and metric sizing. Request a quote today for pricing information on special orders.
 
Model Product Size Plate Feature Pkg Qty  
721022 #3-48 x 5/8" (FT) Flat Hd Socket C/S, Black Oxide #3-48 Black Oxide   1,000
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712037 #3-48 x 3/4" Flat Hd Socket C/S, 18-8 Stnlss Stl #3-48 18-8 Stnlss Stl   1,000
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Quote
721024 #3-48 x 3/4" (FT) Flat Hd Socket C/S, Black Oxide #3-48 Black Oxide   1,000
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Quote
712040 #3-48 x 7/8" Flat Hd Socket C/S, 18-8 Stnlss Stl #3-48 18-8 Stnlss Stl   1,000
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Quote
721026 #3-48 x 7/8" (PT) Flat Hd Socket C/S, Black Oxide #3-48 Black Oxide   1,000
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Quote
712043 #3-48 x 1" Flat Hd Socket C/S, 18-8 Stnlss Stl #3-48 18-8 Stnlss Stl   1,000
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Quote
721028 #3-48 x 1" (PT) Flat Hd Socket C/S, Black Oxide #3-48 Black Oxide   1,000
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Quote
721029 #3-56 (UNF) x 3/16" (FT) Flat Hd Socket C/S, Black Oxide #3-56 Black Oxide   1,000
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Quote
721025 #3-56 (UNF) x 1/2" Flat Hd Socket C/S, Black Oxide #3-56 Black Oxide   1,000
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Quote
210033 #4-40 x 1/8" Flat Hd Socket C/S, *USA*, Black Oxide #4-40 Black Oxide USA 1,000
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Quote
721033 #4-40 x 1/8" Flat Hd Socket C/S, Black Oxide #4-40 Black Oxide   1,000
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Quote
712046 #4-40 x 3/16" Flat Hd Socket C/S, 18-8 Stnlss Stl #4-40 18-8 Stnlss Stl   1,000
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Quote
721030 #4-40 x 3/16" (FT) Flat Hd Socket C/S, Black Oxide #4-40 Black Oxide   1,000
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Quote
211017 #4-40 x 1/4" Flat Hd Socket C/S, Black Oxide #4-40 Black Oxide   1,000
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Quote
212017 #4-40 x 1/4" Flat Hd Socket C/S, 18-8 Stnlss Stl #4-40 18-8 Stnlss Stl   1,000
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Quote
215017 #4-40 x 1/4" Flat Hd Socket C/S, Nylon Patch, Black Oxide #4-40 Black Oxide Nylon Patch 1,000
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Quote
293017 #4-40 x 1/4" Flat Hd Socket C/S, Nylon Pellet, Black Oxide #4-40 Black Oxide Nylon Pellet 1,000
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Quote
808075 #4-40 x 1/4" (FT) Flat Hd Socket C/S, Tamper Resistant, Black Oxide #4-40 Black Oxide Tamper Resistant 1,000
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Quote
840017 #4-40 x 1/4" (FT) Flat Hd Socket C/S, Mech. Zinc #4-40 Mech. Zinc   1,000
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Quote
875017 #4-40 x 1/4" (FT) Flat Hd Socket C/S, Zinc/Bake #4-40 Zinc/Bake   1,000
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Quote
712049 #4-40 x 5/16" Flat Hd Socket C/S, 18-8 Stnlss Stl #4-40 18-8 Stnlss Stl   1,000
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Quote
721032 #4-40 x 5/16" (FT) Flat Hd Socket C/S, Black Oxide #4-40 Black Oxide   1,000
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Quote
875383 #4-40 x 5/16" Flat Hd Socket C/S, Zinc/Bake #4-40 Zinc/Bake   1,000
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Quote
211018 #4-40 x 3/8" Flat Hd Socket C/S, Black Oxide #4-40 Black Oxide   1,000
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Quote
212018 #4-40 x 3/8" Flat Hd Socket C/S, 18-8 Stnlss Stl #4-40 18-8 Stnlss Stl   1,000
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Quote
215018 #4-40 x 3/8" Flat Hd Socket C/S, Nylon Patch, Black Oxide #4-40 Black Oxide Nylon Patch 1,000
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Quote
293018 #4-40 x 3/8" Flat Hd Socket C/S, Nylon Pellet, Black Oxide #4-40 Black Oxide Nylon Pellet 1,000
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Quote
808080 #4-40 x 3/8" (FT) Flat Hd Socket C/S, Tamper Resistant, Black Oxide #4-40 Black Oxide Tamper Resistant 1,000
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Quote
809080 #4-40 x 3/8" (FT) Flat Hd Socket C/S, Tamper Resistant, 18-8 Stnlss Stl #4-40 18-8 Stnlss Stl Tamper Resistant 1,000
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Quote
840018 #4-40 x 3/8" (FT) Flat Hd Socket C/S, Mech. Zinc #4-40 Mech. Zinc   1,000
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Quote
875018 #4-40 x 3/8" (FT) Flat Hd Socket C/S, Zinc/Bake #4-40 Zinc/Bake   1,000
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Quote
721034 #4-40 x 7/16" (FT) Flat Hd Socket C/S, Black Oxide #4-40 Black Oxide   1,000
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Quote
211019 #4-40 x 1/2" Flat Hd Socket C/S, Black Oxide #4-40 Black Oxide   1,000
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Quote
212019 #4-40 x 1/2" Flat Hd Socket C/S, 18-8 Stnlss Stl #4-40 18-8 Stnlss Stl   1,000
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Quote
215019 #4-40 x 1/2" Flat Hd Socket C/S, Nylon Patch, Black Oxide #4-40 Black Oxide Nylon Patch 1,000
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Quote
293019 #4-40 x 1/2" Flat Hd Socket C/S, Nylon Pellet, Black Oxide #4-40 Black Oxide Nylon Pellet 1,000
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Quote
808085 #4-40 x 1/2" (FT) Flat Hd Socket C/S, Tamper Resistant, Black Oxide #4-40 Black Oxide Tamper Resistant 1,000
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Quote
809085 #4-40 x 1/2" (FT) Flat Hd Socket C/S, Tamper Resistant, 18-8 Stnlss Stl #4-40 18-8 Stnlss Stl Tamper Resistant 1,000
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Quote
840019 #4-40 x 1/2" (FT) Flat Hd Socket C/S, Mech. Zinc #4-40 Mech. Zinc   1,000
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Quote
875019 #4-40 x 1/2" (FT) Flat Hd Socket C/S, Zinc/Bake #4-40 Zinc/Bake   1,000
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Quote
721035 #4-40 x 9/16" (FT) Flat Hd Socket C/S, Black Oxide #4-40 Black Oxide   1,000
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Quote
211020 #4-40 x 5/8" Flat Hd Socket C/S, Black Oxide #4-40 Black Oxide   1,000
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Quote
215020 #4-40 x 5/8" Flat Hd Socket C/S, Nylon Patch, Black Oxide #4-40 Black Oxide Nylon Patch 1,000
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Quote
293020 #4-40 x 5/8" Flat Hd Socket C/S, Nylon Pellet, Black Oxide #4-40 Black Oxide Nylon Pellet 1,000
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Quote
712050 #4-40 x 5/8" Flat Hd Socket C/S, 18-8 Stnlss Stl #4-40 18-8 Stnlss Stl   1,000
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Quote
808090 #4-40 x 5/8" (FT) Flat Hd Socket C/S, Tamper Resistant, Black Oxide #4-40 Black Oxide Tamper Resistant 1,000
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Quote
840020 #4-40 x 5/8" (FT) Flat Hd Socket C/S, Mech. Zinc #4-40 Mech. Zinc   1,000
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Quote
875020 #4-40 x 5/8" (FT) Flat Hd Socket C/S, Zinc/Bake #4-40 Zinc/Bake   1,000
Add to
Quote
211021 #4-40 x 3/4" Flat Hd Socket C/S, Black Oxide #4-40 Black Oxide   1,000
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Quote
215021 #4-40 x 3/4" Flat Hd Socket C/S, Nylon Patch, Black Oxide #4-40 Black Oxide Nylon Patch 1,000
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Quote

Model:
Size:
#3-48
Plate:
Black Oxide
Model:
Size:
#3-48
Plate:
18-8 Stnlss Stl
Model:
Size:
#3-48
Plate:
Black Oxide
Model:
Size:
#3-48
Plate:
18-8 Stnlss Stl
Model:
Size:
#3-48
Plate:
Black Oxide
Model:
Size:
#3-48
Plate:
18-8 Stnlss Stl
Model:
Size:
#3-48
Plate:
Black Oxide
Model:
Size:
#3-56
Plate:
Black Oxide
Model:
Size:
#3-56
Plate:
Black Oxide
Model:
Size:
#4-40
Plate:
Black Oxide
Feature:
USA
Model:
Size:
#4-40
Plate:
Black Oxide
Model:
Size:
#4-40
Plate:
18-8 Stnlss Stl
Model:
Size:
#4-40
Plate:
Black Oxide
Model:
Size:
#4-40
Plate:
Black Oxide
Model:
Size:
#4-40
Plate:
18-8 Stnlss Stl
Model:
Size:
#4-40
Plate:
Black Oxide
Feature:
Nylon Patch
Model:
Size:
#4-40
Plate:
Black Oxide
Feature:
Nylon Pellet
Model:
Size:
#4-40
Plate:
Black Oxide
Feature:
Tamper Resistant
Model:
Size:
#4-40
Plate:
Mech. Zinc
Model:
Size:
#4-40
Plate:
Zinc/Bake
Model:
Size:
#4-40
Plate:
18-8 Stnlss Stl
Model:
Size:
#4-40
Plate:
Black Oxide
Model:
Size:
#4-40
Plate:
Zinc/Bake
Model:
Size:
#4-40
Plate:
Black Oxide
Model:
Size:
#4-40
Plate:
18-8 Stnlss Stl
Model:
Size:
#4-40
Plate:
Black Oxide
Feature:
Nylon Patch
Model:
Size:
#4-40
Plate:
Black Oxide
Feature:
Nylon Pellet
Model:
Size:
#4-40
Plate:
Black Oxide
Feature:
Tamper Resistant
Model:
Size:
#4-40
Plate:
18-8 Stnlss Stl
Feature:
Tamper Resistant
Model:
Size:
#4-40
Plate:
Mech. Zinc
Model:
Size:
#4-40
Plate:
Zinc/Bake
Model:
Size:
#4-40
Plate:
Black Oxide
Model:
Size:
#4-40
Plate:
Black Oxide
Model:
Size:
#4-40
Plate:
18-8 Stnlss Stl
Model:
Size:
#4-40
Plate:
Black Oxide
Feature:
Nylon Patch
Model:
Size:
#4-40
Plate:
Black Oxide
Feature:
Nylon Pellet
Model:
Size:
#4-40
Plate:
Black Oxide
Feature:
Tamper Resistant
Model:
Size:
#4-40
Plate:
18-8 Stnlss Stl
Feature:
Tamper Resistant
Model:
Size:
#4-40
Plate:
Mech. Zinc
Model:
Size:
#4-40
Plate:
Zinc/Bake
Model:
Size:
#4-40
Plate:
Black Oxide
Model:
Size:
#4-40
Plate:
Black Oxide
Model:
Size:
#4-40
Plate:
Black Oxide
Feature:
Nylon Patch
Model:
Size:
#4-40
Plate:
Black Oxide
Feature:
Nylon Pellet
Model:
Size:
#4-40
Plate:
18-8 Stnlss Stl
Model:
Size:
#4-40
Plate:
Black Oxide
Feature:
Tamper Resistant
Model:
Size:
#4-40
Plate:
Mech. Zinc
Model:
Size:
#4-40
Plate:
Zinc/Bake
Model:
Size:
#4-40
Plate:
Black Oxide
Model:
Size:
#4-40
Plate:
Black Oxide
Feature:
Nylon Patch

Flat Head Socket Cap Screws

Flat head socket screws have a flat, countersunk head with a hexagonal socket for driving. After installation, they sit flush with the substrate's surface, providing a smooth finish. These screws offer reliable fastening and are available in various material and finish options.

Material & Finish Options for Flat Head Socket Cap Screws

Flat head socket cap screws are available in various materials and finish options for enhanced strength and corrosion resistance properties. Materials and finish options for flat head socket cap screws include:
  • 18.8 Stainless Steel Flat Head Socket Cap Screws
  • Black Oxide Finish for Flat Head Socket Cap Screws
  • Mechanical Zinc Finish for Flat Head Socket Cap Screws
  • Zinc/Bake Plating for Flat Head Socket Cap Screws

Industrial Applications for Flat Head Socket Cap Screws

Flat head socket screws are commonly used in industrial and commercial manufacturing applications. These screws are found in automotive components, aerospace equipment, metal fabrication applications, construction, and more. Flat head socket screws provide a flush and recessed finish, making them suitable for applications requiring a very low-profile and secure installation.

Empire Is Your Source for Custom Fasteners, VMI Services, & More

At Empire, we are a one-stop shop for our customers' fastener supply needs. In addition to our extensive selection of standard industrial fasteners, we specialize in manufacturing custom fasteners that can be crafted to meet any application's requirements. Our engineers work closely with you to ensure your custom fasteners meet your application's proper dimensions, materials, and other design specifications.
We also provide a range of additional services, including VMI services, custom kitting & packaging, fast shipping, and more. At Empire, we go the extra mile to ensure our customers have the best purchasing experience for their industrial fastener needs.

Contact Us to Learn How We Can Supply All Your Fastener Needs

Contact Empire Bolt & Screw to learn how we can provide you with premium industrial fasteners, including flat head socket screws. You can also request a quote online for pricing information on special orders. Empire Bolt & Screw is your source for industrial and commercial fasteners for all applications.

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Toll-Free US & Canada: 888-534-0636 - Phone: 509-534-0636 - Fax: 509-534-1475