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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  
210052 5/16"-18 x 1-1/2" Flat Hd Socket C/S, *USA*, Black Oxide 5/16"-18 Black Oxide USA 1,000
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Quote
211167 5/16"-18 x 1-1/2" Flat Hd Socket C/S, Black Oxide 5/16"-18 Black Oxide   1,000
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Quote
293187 5/16"-18 x 1-1/2" Flat Hd Socket C/S, Nylon Pellet, Black Oxide 5/16"-18 Black Oxide Nylon Pellet 1,000
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Quote
808275 5/16"-18 x 1-1/2" (FT) Flat Hd Socket C/S, Tamper Resistant, Black Oxide 5/16"-18 Black Oxide Tamper Resistant 1,000
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Quote
809275 5/16"-18 x 1-1/2" (FT) Flat Hd Socket C/S, Tamper Resistant, 18-8 Stnlss Stl 5/16"-18 18-8 Stnlss Stl Tamper Resistant 1,000
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Quote
840167 5/16"-18 x 1-1/2" (FT) Flat Hd Socket C/S, Mech. Zinc 5/16"-18 Mech. Zinc   1,000
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Quote
875167 5/16"-18 x 1-1/2" (FT) Flat Hd Socket C/S, Zinc/Bake 5/16"-18 Zinc/Bake   1,000
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Quote
721171 5/16"-18 x 1 5/8" (FT) Flat Hd Socket C/S, Black Oxide 5/16"-18 Black Oxide   1,000
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Quote
211169 5/16"-18 x 1-3/4" Flat Hd Socket C/S, Black Oxide 5/16"-18 Black Oxide   1,000
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Quote
212106 5/16"-18 x 1-3/4" Flat Hd Socket C/S, 18-8 Stnlss Stl 5/16"-18 18-8 Stnlss Stl   1,000
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Quote
215193 5/16"-18 x 1-3/4" Flat Hd Socket C/S, Nylon Patch, Black Oxide 5/16"-18 Black Oxide Nylon Patch 1,000
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Quote
293193 5/16"-18 x 1-3/4" Flat Hd Socket C/S, Nylon Pellet, Black Oxide 5/16"-18 Black Oxide Nylon Pellet 1,000
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Quote
840169 5/16"-18 x 1-3/4" (FT) Flat Hd Socket C/S, Mech. Zinc 5/16"-18 Mech. Zinc   1,000
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Quote
875169 5/16"-18 x 1-3/4" (FT) Flat Hd Socket C/S, Zinc/Bake 5/16"-18 Zinc/Bake   1,000
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Quote
721175 5/16"-18 x 1 7/8" (FT) Flat Hd Socket C/S, Black Oxide 5/16"-18 Black Oxide   1,000
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Quote
211171 5/16"-18 x 2" Flat Hd Socket C/S, Black Oxide 5/16"-18 Black Oxide   1,000
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Quote
212109 5/16"-18 x 2" Flat Hd Socket C/S, 18-8 Stnlss Stl 5/16"-18 18-8 Stnlss Stl   1,000
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Quote
215196 5/16"-18 x 2" Flat Hd Socket C/S, Nylon Patch, Black Oxide 5/16"-18 Black Oxide Nylon Patch 1,000
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Quote
293196 5/16"-18 x 2" Flat Hd Socket C/S, Nylon Pellet, Black Oxide 5/16"-18 Black Oxide Nylon Pellet 1,000
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Quote
840171 5/16"-18 x 2" (PT) Flat Hd Socket C/S, Mech. Zinc 5/16"-18 Mech. Zinc   1,000
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Quote
875171 5/16"-18 x 2" (PT) Flat Hd Socket C/S, Zinc/Bake 5/16"-18 Zinc/Bake   1,000
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Quote
875401 5/16"-18 x 2" Flat Hd Socket C/S, Zinc/Bake 5/16"-18 Zinc/Bake   1,000
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Quote
211173 5/16"-18 x 2-1/4" Flat Hd Socket C/S, Black Oxide 5/16"-18 Black Oxide   1,000
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Quote
215197 5/16"-18 x 2-1/4" Flat Hd Socket C/S, Nylon Patch, Black Oxide 5/16"-18 Black Oxide Nylon Patch 1,000
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Quote
712197 5/16"-18 x 2-1/4" Flat Hd Socket C/S, 18-8 Stnlss Stl 5/16"-18 18-8 Stnlss Stl   1,000
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Quote
721710 5/16"-18 x 2-1/4" (FT) Flat Hd Socket C/S, Black Oxide 5/16"-18 Black Oxide   1,000
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Quote
875173 5/16"-18 x 2-1/4" (PT) Flat Hd Socket C/S, Zinc/Bake 5/16"-18 Zinc/Bake   1,000
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Quote
211175 5/16"-18 x 2-1/2" Flat Hd Socket C/S, Black Oxide 5/16"-18 Black Oxide   1,000
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Quote
212112 5/16"-18 x 2-1/2" (FT) Flat Hd Socket C/S, 18-8 Stnlss Stl 5/16"-18 18-8 Stnlss Stl   1,000
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Quote
215198 5/16"-18 x 2-1/2" Flat Hd Socket C/S, Nylon Patch, Black Oxide 5/16"-18 Black Oxide Nylon Patch 1,000
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Quote
712200 5/16"-18 x 2-1/2" Flat Hd Socket C/S, 18-8 Stnlss Stl 5/16"-18 18-8 Stnlss Stl   1,000
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Quote
875175 5/16"-18 x 2-1/2" (PT) Flat Hd Socket C/S, Zinc/Bake 5/16"-18 Zinc/Bake   1,000
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Quote
721172 5/16"-18 x 2-3/4" (PT) Flat Hd Socket C/S, Black Oxide 5/16"-18 Black Oxide   1,000
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Quote
712203 5/16"-18 x 3" Flat Hd Socket C/S, 18-8 Stnlss Stl 5/16"-18 18-8 Stnlss Stl   1,000
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Quote
721174 5/16"-18 x 3" (PT) Flat Hd Socket C/S, Black Oxide 5/16"-18 Black Oxide   1,000
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Quote
875176 5/16"-18 x 3" (PT) Flat Hd Socket C/S, Zinc/Bake 5/16"-18 Zinc/Bake   1,000
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Quote
721127 5/16"-18 x 3-1/4" Flat Hd Socket C/S, Black Oxide 5/16"-18 Black Oxide   1,000
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Quote
721176 5/16"-18 x 3-1/2" (PT) Flat Hd Socket C/S, Black Oxide 5/16"-18 Black Oxide   1,000
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Quote
721177 5/16"-18 x 3-3/4" (PT) Flat Hd Socket C/S, Black Oxide 5/16"-18 Black Oxide   1,000
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Quote
721178 5/16"-18 x 4" (PT) Flat Hd Socket C/S, Black Oxide 5/16"-18 Black Oxide   1,000
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Quote
712206 5/16"-24 (UNF) x 3/8" Flat Hd Socket C/S, 18-8 Stnlss Stl 5/16"-24 18-8 Stnlss Stl   1,000
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Quote
721180 5/16"-24 (UNF) x 3/8" (FT) Flat Hd Socket C/S, Black Oxide 5/16"-24 Black Oxide   1,000
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Quote
211177 5/16"-24 (UNF) x 1/2" Flat Hd Socket C/S, Black Oxide 5/16"-24 Black Oxide   1,000
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Quote
712209 5/16"-24 (UNF) x 1/2" Flat Hd Socket C/S, 18-8 Stnlss Stl 5/16"-24 18-8 Stnlss Stl   1,000
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Quote
875177 5/16"-24 (UNF) x 1/2" (FT) Flat Hd Socket C/S, Zinc/Bake 5/16"-24 Zinc/Bake   1,000
Add to
Quote
211179 5/16"-24 (UNF) x 5/8" Flat Hd Socket C/S, Black Oxide 5/16"-24 Black Oxide   1,000
Add to
Quote
215199 5/16"-24 (UNF) x 5/8" Flat Hd Socket C/S, Nylon Patch, Black Oxide 5/16"-24 Black Oxide Nylon Patch 1,000
Add to
Quote
293199 5/16"-24 (UNF) x 5/8" Flat Hd Socket C/S, Nylon Pellet, Black Oxide 5/16"-24 Black Oxide Nylon Pellet 1,000
Add to
Quote
712212 5/16"-24 (UNF) x 5/8" Flat Hd Socket C/S, 18-8 Stnlss Stl 5/16"-24 18-8 Stnlss Stl   1,000
Add to
Quote
875179 5/16"-24 (UNF) x 5/8" (FT) Flat Hd Socket C/S, Zinc/Bake 5/16"-24 Zinc/Bake   1,000
Add to
Quote

Model:
Size:
5/16"-18
Plate:
Black Oxide
Feature:
USA
Model:
Size:
5/16"-18
Plate:
Black Oxide
Model:
Size:
5/16"-18
Plate:
Black Oxide
Feature:
Nylon Pellet
Model:
Size:
5/16"-18
Plate:
Black Oxide
Feature:
Tamper Resistant
Model:
Size:
5/16"-18
Plate:
18-8 Stnlss Stl
Feature:
Tamper Resistant
Model:
Size:
5/16"-18
Plate:
Mech. Zinc
Model:
Size:
5/16"-18
Plate:
Zinc/Bake
Model:
Size:
5/16"-18
Plate:
Black Oxide
Model:
Size:
5/16"-18
Plate:
Black Oxide
Model:
Size:
5/16"-18
Plate:
18-8 Stnlss Stl
Model:
Size:
5/16"-18
Plate:
Black Oxide
Feature:
Nylon Patch
Model:
Size:
5/16"-18
Plate:
Black Oxide
Feature:
Nylon Pellet
Model:
Size:
5/16"-18
Plate:
Mech. Zinc
Model:
Size:
5/16"-18
Plate:
Zinc/Bake
Model:
Size:
5/16"-18
Plate:
Black Oxide
Model:
Size:
5/16"-18
Plate:
Black Oxide
Model:
Size:
5/16"-18
Plate:
18-8 Stnlss Stl
Model:
Size:
5/16"-18
Plate:
Black Oxide
Feature:
Nylon Patch
Model:
Size:
5/16"-18
Plate:
Black Oxide
Feature:
Nylon Pellet
Model:
Size:
5/16"-18
Plate:
Mech. Zinc
Model:
Size:
5/16"-18
Plate:
Zinc/Bake
Model:
Size:
5/16"-18
Plate:
Zinc/Bake
Model:
Size:
5/16"-18
Plate:
Black Oxide
Model:
Size:
5/16"-18
Plate:
Black Oxide
Feature:
Nylon Patch
Model:
Size:
5/16"-18
Plate:
18-8 Stnlss Stl
Model:
Size:
5/16"-18
Plate:
Black Oxide
Model:
Size:
5/16"-18
Plate:
Zinc/Bake
Model:
Size:
5/16"-18
Plate:
Black Oxide
Model:
Size:
5/16"-18
Plate:
18-8 Stnlss Stl
Model:
Size:
5/16"-18
Plate:
Black Oxide
Feature:
Nylon Patch
Model:
Size:
5/16"-18
Plate:
18-8 Stnlss Stl
Model:
Size:
5/16"-18
Plate:
Zinc/Bake
Model:
Size:
5/16"-18
Plate:
Black Oxide
Model:
Size:
5/16"-18
Plate:
18-8 Stnlss Stl
Model:
Size:
5/16"-18
Plate:
Black Oxide
Model:
Size:
5/16"-18
Plate:
Zinc/Bake
Model:
Size:
5/16"-18
Plate:
Black Oxide
Model:
Size:
5/16"-18
Plate:
Black Oxide
Model:
Size:
5/16"-18
Plate:
Black Oxide
Model:
Size:
5/16"-18
Plate:
Black Oxide
Model:
Size:
5/16"-24
Plate:
18-8 Stnlss Stl
Model:
Size:
5/16"-24
Plate:
Black Oxide
Model:
Size:
5/16"-24
Plate:
Black Oxide
Model:
Size:
5/16"-24
Plate:
18-8 Stnlss Stl
Model:
Size:
5/16"-24
Plate:
Zinc/Bake
Model:
Size:
5/16"-24
Plate:
Black Oxide
Model:
Size:
5/16"-24
Plate:
Black Oxide
Feature:
Nylon Patch
Model:
Size:
5/16"-24
Plate:
Black Oxide
Feature:
Nylon Pellet
Model:
Size:
5/16"-24
Plate:
18-8 Stnlss Stl
Model:
Size:
5/16"-24
Plate:
Zinc/Bake

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