Cold Headers
Cold Headers
5514 N. Elston Ave
Chicago, IL 60630
Phone: 1-773-775-7900
Fax: 1-773-775-0779
Email: sales@coldheaders.com
Website: www.coldheaders.com
Working Hours: Mon - Fri 8:00am - 4:30pm CST
Saturday - Sunday CLOSED If you have any questions, please call or email us.
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18-8 Stainless Steel Socket Head Cap Screws

18-8 stainless steel socket head cap screws are precision threaded fasteners featuring a cylindrical head and an internal hex drive for high-strength fastening in compact assemblies. Their internal hex socket allows installation where external wrench clearance is limited, making them well suited for machinery, automation equipment, tooling, fixtures, pumps, conveyors, robotics, instrumentation, maintenance repairs, and OEM manufacturing.

Manufactured from 18-8 stainless steel, these socket head cap screws provide general corrosion resistance for many industrial environments exposed to moisture, humidity, or routine washdown. They are commonly specified where stainless steel construction is required together with the compact profile and efficient installation characteristics of an internal hex drive fastener.

Proper fastener selection should consider thread size, screw length, nominal body diameter, head diameter, head height, hex socket size, mating-thread engagement, installation clearance, and operating environment. Individual product pages provide verified engineering dimensions to help engineers and purchasing professionals specify the correct fastener for demanding industrial applications.

Cold Headers supplies 18-8 stainless steel socket head cap screws in a broad range of inch thread sizes and lengths, including standard, uncommon, and difficult-to-source configurations. Our catalog is organized to simplify exact-size sourcing while providing consistent engineering information across every product family.

Why Choose 18-8 Stainless Steel Socket Head Cap Screws?

  • Cylindrical socket head: Compact design for applications with limited installation space.
  • Internal hex drive: Allows installation using standard hex keys or hex bits.
  • 18-8 stainless steel: Provides general corrosion resistance for many industrial environments.
  • Broad industrial use: Commonly specified for machinery, tooling, automation, maintenance, and OEM assemblies.
  • Verified engineering dimensions: Product pages provide thread size, body diameter, head diameter, head height, and hex socket size where available.

Selecting the Correct Socket Head Cap Screw

Begin by confirming the required thread size and screw length. Review the nominal body diameter, head diameter, head height, hex socket size, installation clearance, mating-thread engagement, and environmental conditions before selecting a fastener. Final material selection should reflect the mechanical and service requirements of the completed assembly.

Cold Headers Inc. has supplied specialty industrial socket fasteners since 1962. Our catalog helps engineers, distributors, maintenance teams, and purchasing professionals locate exact sizes, uncommon lengths, and difficult-to-find socket head cap screws without unsupported inventory claims.

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.

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Unit of Measure
Items socket-head-cap-screw-18-8-stainless.png
0-80 x 1/8 SHCS 18-8
0-80 Diameter and 1/8 Inch (in) Length 18-8 Stainless Steel Socket Head Cap Screw
List Price (per 100 pieces) $13.00
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0-80 x 3/16 SHCS 18-8
0-80 Diameter and 3/16 Inch (in) Length 18-8 Stainless Steel Socket Head Cap Screw
List Price (per 100 pieces) $13.50
 socket-head-cap-screw-18-8-stainless.png
0-80 x 1/4 SHCS 18-8
0-80 Diameter and 1/4 Inch (in) Length 18-8 Stainless Steel Socket Head Cap Screw
List Price (per 100 pieces) $14.00
 socket-head-cap-screw-18-8-stainless.png
0-80 x 5/16 SHCS 18-8
0-80 Diameter and 5/16 Inch (in) Length 18-8 Stainless Steel Socket Head Cap Screw
List Price (per 100 pieces) $15.00
 socket-head-cap-screw-18-8-stainless.png
0-80 x 3/8 SHCS 18-8
0-80 Diameter and 3/8 Inch (in) Length 18-8 Stainless Steel Socket Head Cap Screw
List Price (per 100 pieces) $16.00
Description N/A 0-80 x 1/8 18-8 Stainless Steel Socket Head Cap Screw is specified when engineers need a stainless internal-hex fastener with everyday corrosion resistance and compact head geometry. The material offers everyday corrosion protection for many packaging, processing, instrumentation, and commercial equipment applications. Hex-key installation helps technicians reach fastening points inside covers, brackets, guards, fixture plates, and machine frames. Typical placements include industrial automation, fixture plates, and assembly equipment where general corrosion resistance and internal-hex access are useful. Engineering departments can evaluate head clearance, drive access, and material compatibility before releasing the assembly. Technical Highlights: Material: 18-8 Stainless Steel; Thread: 0-80 UNF; Length: 1/8 in.; Nominal Body Diameter: 0.060 in.; Head Diameter: 0.096 in. max / 0.091 in. min; Head Height: 0.060 in. max / 0.057 in. min; Hex Key Size: 0.050; Drive Type: internal hex. Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote. N/A 0-80 x 3/16 18-8 Stainless Steel Socket Head Cap Screw helps solve fastening requirements in equipment where moisture, cleaning, or general plant exposure makes stainless hardware useful. 18-8 stainless steel is commonly selected for general corrosion resistance in indoor equipment, protected outdoor equipment, and high-humidity work areas. The socket head form gives designers a compact bearing surface while preserving drive access for installation and service. Typical placements include packaging equipment, stainless covers, and machine guarding where general corrosion resistance and internal-hex access are useful. Industrial distributors can support customers who need a size-specific 18-8 stainless socket head cap screw for repair work. Technical Highlights: Material: 18-8 Stainless Steel; Thread: 0-80 UNF; Length: 3/16 in.; Nominal Body Diameter: 0.060 in.; Head Diameter: 0.096 in. max / 0.091 in. min; Head Height: 0.060 in. max / 0.057 in. min; Hex Key Size: 0.050; Drive Type: internal hex. Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote. N/A 0-80 x 1/4 18-8 Stainless Steel Socket Head Cap Screw provides an 18-8 stainless socket-drive option for assemblies that need reliable hex-key access in compact locations. This material is useful across production facilities where moisture, handling, and routine cleaning influence fastener selection. Internal-hex engagement gives engineering departments a familiar drive style for stainless machine components. Typical placements include material handling, conveyor systems, and service brackets where general corrosion resistance and internal-hex access are useful. Purchasing agents can source the specified stainless fastener without changing the approved product family. Technical Highlights: Material: 18-8 Stainless Steel; Thread: 0-80 UNF; Length: 1/4 in.; Nominal Body Diameter: 0.060 in.; Head Diameter: 0.096 in. max / 0.091 in. min; Head Height: 0.060 in. max / 0.057 in. min; Hex Key Size: 0.050; Drive Type: internal hex. Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote. N/A 0-80 x 5/16 18-8 Stainless Steel Socket Head Cap Screw is used where drawings call for a socket head cap screw that combines stainless construction with a cylindrical head profile. 18-8 stainless is a practical material choice for equipment that needs general corrosion resistance in everyday industrial service. The drive style supports controlled removal and reinstallation during maintenance repair or equipment adjustment. Typical placements include machine building, tooling, and precision assemblies where general corrosion resistance and internal-hex access are useful. Maintenance managers can match the thread, length, material, and head geometry already called out on service documentation. Technical Highlights: Material: 18-8 Stainless Steel; Thread: 0-80 UNF; Length: 5/16 in.; Nominal Body Diameter: 0.060 in.; Head Diameter: 0.096 in. max / 0.091 in. min; Head Height: 0.060 in. max / 0.057 in. min; Hex Key Size: 0.050; Drive Type: internal hex. Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote. N/A 0-80 x 3/8 18-8 Stainless Steel Socket Head Cap Screw supports machine designs that need corrosion-resistant clamping hardware without giving up internal-hex installation access. The stainless construction supports service in many maintenance, assembly, agricultural, and light chemical exposure environments. The internal hex drive supports positive tool engagement where surrounding components limit wrench clearance. Typical placements include food processing equipment, washdown-adjacent frames, and access covers where general corrosion resistance and internal-hex access are useful. Design engineers can compare the listed head dimensions and hex key size against counterbore and tooling requirements. Technical Highlights: Material: 18-8 Stainless Steel; Thread: 0-80 UNF; Length: 3/8 in.; Nominal Body Diameter: 0.060 in.; Head Diameter: 0.096 in. max / 0.091 in. min; Head Height: 0.060 in. max / 0.057 in. min; Hex Key Size: 0.050; Drive Type: internal hex. Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
Brands N/A Cold Headers, Inc.
Diameter N/A 0-80
Length N/A 1/8 in N/A 3/16 in N/A 1/4 in N/A 5/16 in N/A 3/8 in
Material N/A 18-8 Stainless Steel
Quantity N/A 100
Package Type N/A Box
Note N/A Less Than Package Quantity Specified Plus 25%.